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Isobutyric acid, also known as 2-methylpropionic acid, is an organic compound with chemical formula of C4H8O2. It is a colorless liquid, insoluble in water, and miscible in ethanol, ether, chloroform, glycerin, propylene glycol, etc. It is mainly used in organic synthesis. Specification Mel , ting Point -47 °C (lit.) Boiling Point 153-154 °C (lit.) Density 0.95 g/mL at 25 °C (lit.) Refractive Index n20/D 1.393(lit.) Flash point 132 °F Storage Condition Store below +30°C. Solubility 618g/l App , earance Liquid Acidity Coefficient (pKa) 4.84(at 20℃) Color Clear colorless Odor 0.0015ppm PH 3.96(1 mM solution);3.44(10 mM solution);2.93(100 mM solution); Water Solubility 210 g/L (20 ºC) InChIKey KQNPFQTWMSNSAP-UHFFFAO , YSA-N Safety Information Dangerous Goods Sign Xn Hazard Category Code 21/22 Safety Instructions 23-36/37/39-24/25 Dange , rous Goods Transportation No UN 2529 3/PG 3 WGK Germany 1 RTECS NQ4375000 , F 13 TSCA Yes Hazard Level 3 Packaging Category III HS CODE 29156000

Minimum Order: 1 bags

5-Chloro-2-methylaniline, also known as 5-chloro-o-toluidine, fast red KB salt, is an organic compound with a chemical formula of C7H8ClN, mainly used in organic synthesis. Specification Mel , ting Point 22 °C Boiling Point 237 °C(lit.) Density 1.177 g/mL at 20 °C(lit.) Refractive Index n20/D 1.584(lit.) Flash point 320 °F Storage Condition Store below +30°C. Solubility Soluble in Alcohol Appearance Liquid After Melting Acidity Coefficient (pKa) pK1:3.85(+1) (25°C) Color Clear yellow to light brown Odor Characteristic odour PH 7.5 (5g/l, H2O, 25℃) Water Solubility < 1 g/L (22 ºC) Safety Information Dangerous Goods Sign Xn,T Hazard Category Code 22-36/37/38-40-45-23/24/25 Safe , ty Instructions 26-45-36/37/39-53 Dange , rous Goods Transportation No UN 3429 6.1/PG 3 WGK Germany 3 RTECS XU5075000 , TSCA Yes Hazard Level 6.1 Packaging Category III HS CODE 29214300 Toxicity LD50 orally in Rabbit: 464 mg/kg

Minimum Order: 1 bags

Glucose is a simple sugar monosaccharide having two isoforms, alpha and beta, with a chemical structure of C6H12O6 that acts as an energy source for both plants and animals by reacting with oxygen, generating carbon dioxide and water, and releasing energy. Specification Meltin , g Point 155 °C Boiling Point 232.96°C (rough estimate) Density 1.5620 Refr , active Index 53 ° (C=10, H2O) Storage Condition Refrigerator Appearance White Color Powder. Stab , ility If used and stored according to specifications, it will not decompose, no known hazardous reaction

Minimum Order: 1 bags

M-Triangel KO4 Edge LCD OLED OCA Laminating Machine For iPhone Samsung Mobile Phone Watch Screen refurbishment, maximum suitable for 7 inch LCD OLED screen OCA vacuum laminating. M-Triangel KO4 mini OCA Vacuum laminator machine. Features: 1. KO4 is a lightweight design cell phone screen repair vacuum laminator, and lamination container is 190*135mm. 2. Maximum suitable for 7 inch LCD screen. 3. The laminator machine is compatible with curved mold, pressure can be switched, and suitable for cell phone and smart watch screen refurbishment. 4. M-Triangel is committed to developing the most suitable products for user needs, 5. KO4 adapts to market demand, mainly using high hardness aluminum alloy material design, volume smaller, lighter weight, with CE certification, safe and secure. Specification: Power supply: AC250V(optional AC110V/AC220V) Working environment: 20-30℃, clean and dust-free Laminating method: flat laminating Power: 800W Working temperature: set to 40℃-50℃ is recommended Laminating time: Recommended 30S Equipment size: 280"311*413(MM) Packing size: 340*375*465(MM) Net weight: 17.6KG Gross weight: 18.55KG Laminating size: 190*135(MM) Note: Package not including vacuum pump, air compressor, laminating mold. You can choose to buy from us separately if needed.

Minimum Order: 1 bags

Pinacolone is an organic compound with the chemical formula of C6H12O. It is a colorless transparent liquid, soluble in ethanol, ether and acetone, slightly soluble in water, volatile in steam, with the smell of mint. It is often used as a solvent and extractant, and can also be used in organic synthesis. Specification Mel , ting Point -52.5 °C Boiling Point 106 °C(lit.) Density 0.801 g/mL at 25 °C(lit.) Refractive Index n20/D 1.396(lit.) Flash point 75 °F Storage Condition Flammables area Solubility 19g/l Appeara , nce Liquid Color Clea , r colorless to light yellow Odor 0.043ppm Water Solubility 2.44 g/100 mL (15 ºC) Stability Stable. Incompatible with strong oxidizing agents. Flammable. InChIKey PJGSXYOJTGTZAV-U , HFFFAOYSA-N Safety Information Dangerous Goods Sign F,Xn,Xi Hazard Category Code 11-22-10 Safety Instructions 9-16-29-33-20/21 Danger , ous Goods Transportation No UN 1224 3/PG 2 WGK Germany 2 RTECS EL7700000 , Hazard Note Irritant/Highly Flammable TSCA Yes Hazard Level 3 Packaging Category II HS CODE 29141990

Minimum Order: 1 bags

RIGOL DS1054Z entry-level digital oscilloscope - 50MHz, Rigol DS1054Z 100m digital storage oscilloscope with four channels, 50 MHz digital oscilloscope with 4 channels plus 12 Mpts memory, 1 GS/s sampling rate, Rigol DS1054Z is one of the most popular entry-level oscilloscopes available. Rigol DS1054Z Entry-level Digital Oscilloscopes with 4 Channels Product Features : 7-inch WVGA(80X480), the TFT is simple and intuitive, and displays multi- level waveform grayscale Simple and clear panel, simple and intuitive, easy to operate Hand-held handle/portable design, more convenient to carry Machine vents, built-in temperature control fan With 4 Channels, a bandwidth of 100 MHz Several built-in mathematical functions Now includes FREE software bundle BND-MSO/DS1000Z built into the unit Ultra Vision: Deeper memory 12 Mpts upgradable to 24 Mpts via a software key Up to 30,000 wfms/s Waveform capture rate USB HOST, USB DEVICE, LAN, Aux (TrigOut /PassFail) Incredible display with multi-Level intensity grading display Real-time waveform Record,Replay, function (Opt.) A variety of Math Functions FFT function standard A variety of Trigger Functions Optional Serial Bus Triggering and Decoding DS1054Z digital storage Oscilloscope: Channel: 4 channels Max real-time Sampling rate: 1GSa/s Analog Bandwidth: 50MHz Max Storage depth: 24Mpts Max waveform capture rate: 30,000wfms/s Dimensions: 313*122*161mm (L*W*H) Package includes : 1pc x Rigol DS1054Z digital oscilloscope 2pcs x Probes 1pc x USB Cable 1pc x Power cord 1pc x Quick start (user manual)

Minimum Order: 1 bags

IGOL DS1104Z Plus 4 Channels 100 MHz Digital Storage Oscilloscope with 1 GSa/sec Sampling + 25 MHz 2 Channel Signal Source (Function Generator) Product Features : 100 MHz Digital Oscilloscope with 4 channels and 25 MHz 2 channel integrated source plus 12 Mpt memory and 1 GSa/sec sampling 4 Channels, 100 MHz Bandwidth scope + 25 MHz 2 channel Signal Source (function generator) UltraVision: Deeper memory(Std.12Mpts,Opt.24Mpts) UltraVision: Up to 30,000 wfms/s Waveform capture rate UltraVision: Multi-Level intensity grading display (100V-240V) The Rigol DS1104Z Plus is a very high quality 4 channel digital storage oscilloscope. It features a real-time sample rate of up to 1 GSa/s and a bandwidth of 100 MHz. The Rigol oscilloscopes are equipped with well designed and easy to use controls offering comprehensive ease-of-use functions for all measuring tasks. The menu navigation is intuitive and available in several languages. This high performance standard not only ensures capturing real-time instantaneous signals, but also observes details of repeated signals. The DS1104Z Plus has a refresh rate of up to 30.000 wfms/ enabling users to capture instantaneous signals, as well as abnormal signals more quickly. It also helps to enhance the waveform capturing ability and to expedite a circuit debug course. The quality of the Rigol oscilloscopes is comparable to Agilent and Tektronix oscilloscopes. The particularly large TFT color displays are very easy to read. Thanks to an intelligent system for displaying or masking information, the largest possible area is always available for displaying signals. The signal curves, the FFT display, and other functions can be shown simultaneously on the display. Special Features : Large Display for 4 Channels It is possible to display all four channels on the large display with 17.8 cm (7") diameter and a resolution of 800 × 480 pixel without any problems. Deeper Memory The Rigol DS1000Z oscilloscopes can store up to 12 million measurement points. You can zoom into a selected part of the captured waveforms to get more details and scroll within the measurement points. With the optional memory module MEM-DS1000Z even 24 million data points are available. The memory expansion module "MEM-DS1000Z" is available on this page under the "accessories? tab. Fast Capturing The high sampling rate (up to 1 GSa/s) of the Rigol DS1000Z Oscilloscopes and the large memory makes it possible to record up to 30,000 waveforms per second. Real-time waveform record, replay, analysis (option) With the optional recorder module DS1000Z-REC the recorded waveforms can be conveniently recorded, displayed and analyzed. The recorder module "DS1000Z-REC" is available on this page under the "accessories" tab. Multi-Level Intensity Grading Display "Multi-Level Grading Intensity" display, extensive signal characteristics with a very large number of measurement values can also be displayed completely. Extensive Trigger Options The Rigol oscilloscopes offer extensive trigger options for a professional use. The special triggers Windows, Nth Edge, Delay, Timeout, Runt, RS232/UART, I²C und SPI are available as option as "AT-DS1000Z Advanced Trigger" module on this page under the "accessories? tab. Serial bus decoding function (option) With the optional "SA-DS1000Z Decoding Kit" serial data packages of different serial bus systems can be analyzed, decoded, and displayed directly as byte values. Supported protocols are: RS232/UART, I²C, and SPI. The serial decoding module "SA-DS1000Z" is available on this page under the "accessories" tab. Advanced Math The DS1000Z series oscilloscopes comes with a modern and advanced math system which lets it solve complicated signal calculations quite simply with predefined formulas. Masked Pass/Fail-Tests Pass/fail testing can be used for troubleshooting in various environments like communication networks. Auto measurements with statistics The oscilloscope measures up to five parameters like rise- and fall-time, amplitude, pulse width, duty cycle and many more simultaneously and shows statistics for every parameter (max- , min- and average values). Package includes : 1pc x Rigol DS1054Z digital oscilloscope 2pcs x Probes 1pc x USB Cable 1pc x Power cord 1pc x Quick start (user manual)

Minimum Order: 1 bags

FNIRSI-1014D Digital Oscilloscope 2 In 1 Dual Channel Input Signal Generator 100MHz* 2 Ana-log Bandwidth 1GSa/s Sampling Rate. FNIRSI 1014D 100MHz Two Channels 1gsa/s Oscilloscope. Features: 1. Built in DDS signal generator, support 12 kinds of function signal. 2. Capture output signal function, which can store up to 1000 capture signals. 3. Targeted high intelligent decoding algorithm, the encoderlifeis infinite, and intelligent anti-burn function, 1X Can withstand up to 400V withstand voltage. 4. With 100MHz * 2 ana-log bandwidth and @ 1GSa/s sampling rate（1X = 5MHz, 10X = 100MHz). 5. Fully fit 7 inch 800 * 480 resolution color TFT LCD display with bright colors and high contrast. 6. High measurement voltage range: 1X can measure 0~40 V, 10X can measure 0~400V. 7. Up to 12 parameters measurement：VPP，VP，Vmax，Vmin，Vavg，Vrms , ， Frequent，Duty+，Duty-，Time+，Time-， , Period. 8. Cursor measurement function: it is convenient to manually measure the period and frequency and voltage. 9. Complete triggering function (single, normal, automatic), and at any time, the waveform display (pause function) is frozen. 10. Equipped with high efficiency One-button AUTO, and one-button waveform storage and screenshot function. 11. Built-in 1GB storage space, can store up to 1000 screenshots + 1000 sets of waveform data. 12. Powerful waveform picture manager supports thumbnail browsing, viewing, detailed viewing, page turning, deletion and waveform zooming in, zooming out, moving, etc. 13. Equipped with a USB interface, which can be connected to a com-puter to share its screenshots with the com-puter, which is convenient for secondary analysis. 14. Lissajous figures graphic display function can be used to determine the amplitude, frequency, and phase contrast of two groups of signals. 15. FFT display function, can analyze the spectral characteristics of the signal, memory compression technology, waveform refresh screen does not flicker. 16. With the screen brightness adjustment function and background gr-id brightness adjustment function, also easy to carry. Introduction: FNIRSI-1014D is a two in one oscilloscope and signal generator launched by FNIRSI. It has comprehensive functions and high practicability. It is a cost-effective dual channel desktop oscilloscope for the maintenance industry and R & D industry. The oscilloscope has a real-time sampling rate of 1GSa / s and 100MHz* 2 analog bandwidth; complete trigger function (single time / normal / automatic), both for periodic analog signal and aperiodic digital signal can be used freely; built in DDS function signal generator and the industry's original chopping output (@ 2.5vpp), all signal frequency step is 1Hz, support 14 kinds of standard function signal and a customizable chopping signal, chopping The output device intercepts part or the whole part of the complex signals measured by the oscilloscope as the output signal of the signal generator, which can store up to 1000 customized cut-off signals; the built-in high-voltage protection module can tolerate up to 400V continuous voltage, without worrying about the oscilloscope burning accident caused by the probe not moving to 10x gear. Large time base scrolling mode, which can monitor slow level changes; equipped with efficient one button auto, which can display the measured waveform without tedious adjustment; display high-definition LCD with 7- inch 800 * 480 resolution; cursor measurement function, when manually reading amplitude and frequency parameters, it does not need to read the background scale unit and quantity, and it does not need to convert to directly get peak to peak and frequency Extremely convenient screen capture and waveform storage function, built-in 1GB storage space, can store up to 1000 screen capture pictures + 1000 groups of waveform data, the storage process is simple and fast, save the current waveform with only one click, no cumbersome prompts and choices to save the current data, very convenient; powerful waveform image manager, support thumbnail browsing, view, view details The functions of page turning, deleting and waveform enlarging, reducing and moving are convenient for secondary analysis. The fuselage is equipped with USB interface, which can be connected with the computer to realize the sharing of its own screen capture pictures and the computer, which is convenient for secondary analysis; Li Shayu's graphic display function can be used to compare and judge the amplitude, frequency and phase of two groups of signals; FFT viewing function can estimate the harmonic component of signals; Li Shayu's graphic display function can be used to compare and judge the amplitude, frequency and phase of two groups of signals.

Minimum Order: 1 bags

TL-15B 2 In 1 Universal adjustable LCD screen fastening clamp battery repair motherboard metal positioning and dismantling fixture for phone tablet screen dismantling and maintenance disassembly fixture. Features: The flat plate can also be disassembled, regardless of size. The suction cup can be freely adjusted back and forth, with uniform force, which makes it easier to absorb, safe, stable and reliable. Vacuum absorption, strong suction, made of environment-friendly PVC plastic, can be used for many times without deformation, and improve work efficiency. Various models and sizes are universal, and can support 12.9 inches at most. Efficient maintenance is more convenient, with strong suction, fixed screen, main-board inspection and maintenance, which can be used as a mobile phone bracket for convenient and fast battery removal. There is a silicone pad at the bottom to prevent scratching. Applicable For Multiple Modes: iPhone: iPhone 5-14 Pro Max Huawei Phone: P series/Mate series/nova series/enjoy series/G series/D series/y series Samsung Phone: Galazy Z/Galazy S/ Galazy A/Samsung W Other Android Phones: Lenovo/ Dowei/Xiaomi/Meizu/LeTV/8848/James/ ZTE/OPPO/VIVO/Gionee/Coolpad/Hammer/TCL/Nokia/ , Motorola/OnePlus/Nubia The Tablet Size Includes: 7 Inches/7.9 Inches/8 Inches/8.4 Inches/9.7 Inches/10 Inches/10.1 Inches /10.8 Inches 11 Inches/12.9 Inches

Minimum Order: 1 bags

OSS T12-X Soldering Station with soldering iron for Phone repair, T12 Soldering Station welding tool. Intelligent constant temperature professional soldering station. Parameter: Model: T12-X Voltage range: 90V-230V Power: 72W Temperature range: 150 ℃ -480 ℃ Temperature improvement: 50 ℃ Automatic standby: yes Features: - Quick temperature recovery, - Enhance temperature with one click, - Auto sleep, auto standby - Three preset temperatures

Minimum Order: 1 bags

Hot Selling Customizable High Quality Matt TPU Protection Film Car Wrapping Film Material: TPU Position: Body Function: Self healing, UV block, Infrared rejection, Anti scratch, Sand proof Structure: 5 layers Application: TPU PPF car paint protective film Standard Size: 1.52x15m Pet film: 75um ksm Release film: 75μm Thickness: 7.5mil Adhesive: Removable glue OEM/ODM: Available Warranty: 5-10 years

T12-D Constant Temperature Electric Soldering Station with LED digital display, 110V-230V 72W 951 Soldering Iron Welding Tool with 3pcs iron tip, Improvement T12-D Constant Temperature Lead-free Soldering Station for mobile phone PCB Welding Repair. Auto sleep, Auto standby, 5 seconds for heating, Immersion tin in 6 seconds, Fast back temperature Enhance temperature in One-button, Adjustable sleep time, Adjustable standby time Five advantages on SFD T12-D soldering iron heat core 1. Compared with ordinary iron tip plating for 10 hours , our soldering iron is electroplated for more than 30 hours！ 2. Ordinary soldering iron head adopt domestic heating core, while our soldering iron head use imported heating core! 3. Ordinary soldering iron tip without any code, but our soldering iron tip uses a unique code, you can trace to the source! 4. When ordinary tip heated above 350 degrees, of which the temperature will jump for at least five minutes, and it will continue to jump when the temperature reaches 500 degrees or more. While our soldering iron tip won't jump and can be used directly! 5. The heat transfer of soldering iron head is high, and temperature of the iron tip is accurate. Difference of actual display temperature is not more than 2 degrees

Minimum Order: 1 bags

D-ribose is an important five-carbon monosaccharide with chemical formula C5H10O5. It is an important component of RNA and ATP, and plays an important role in the formation of life. D-ribose is also an important drug intermediate used in the production of various nucleic acid drugs. Specification Melting Point 88-92 °C(lit.) Boiling Point 191.65°C (rough estimate) Density 1.1897 (rough estimate) Refractive Index -21 ° (C=1, H2O) Storage Condition 2-8°C Solubility H , 2O: 0.1 g/mL, clear, colorless to light yellow Appearance Crystalline Powder Acidity Coefficient (pKa) 12.46±0.20(Predicted) Color White to light beige or slightly yellow PH 7 Water Solubility Soluble in water. Insoluble in ether. InChIKey HMFHBZSHGGEWLO-SOOFD , HNKSA-N Safety Information Dangerous Goods Sign Xi Hazard Category Code 36/38 Safety Instructions 24/25-37/39-26 WGK Germany 3 RTECS VJ2275000 , F 3-10 TSCA Yes HS CODE 29400090

Minimum Order: 1 bags

YIHUA 1000B / 1000A 3-IN-1 Infrared BGA Rework Station: SMD Hot Air Gun + 540W Preheating Station + 75W Soldering Irons, YIHUA 1000B personal BGA rework station 3 in 1 SMD Hot Air Gun+75W Soldering Irons+540W Preheating Station. YIHUA 1000B Soldering rework station: powerful electronics repairing machine for all kinds motherboard / repair, YIHUA 1000B 3-IN-1 Infrared BGA Rework Station for Personal Repair Shop: motherboard / laptop / mobile phone motherboard repair Feature: 1. Using the new SAMSUNG microcomputer processor PID programmable temperature control technology and uses an infrared source and optics to target heat to individual components without dislodging other SMT parts by way of eddies air currents. 2. Adopt infrared weld technology which independent exploration , infrared penetration strength , components uniform heating , beyond the traditional hot air heating vowed to prevent blow off the IC surrounding small components. 3. Technician focused infrared heat is easy to target most component removal/replacement and re-work. 4. Infrared heat source bulbs are long-lived , un-expensive and easily replaced. 5. Has bright delicate , low voltage LED lighting , safety and energy conservation. 6. It has External Sensor Temperature control mode , that is detected by the sensor IC surface temperature control temperature , this function is good for freshman operation , it’s safe way protect components . 7. MountTechnology (SMT) components 15-35cm in size. 8. This machine has 540W heating system , widely to 120mm*120mm. 9. Preheating plate color is black , from the photics point of view , black color easy to absorb heating , shorten the warm-up time. 10. Powerful human function design , with the following functions A. Temperature correction function Correction of temperature range -50°C~+50 °C ( Infrared lamp analog value 580 ). B. Celsius / Fahrenheit temperature display function 11. This machine also has soldering iron function , if you have the device , you can used for all of the components solder , desoldering , preheating , repair all components , especially Micro BGA components.

Minimum Order: 1 bags