1-Naphthaleneboronic acid, 13922-41-3, C10H9BO2

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5,6-Dihydroxyindole
Identificatio , n
Name 5,6-Dihydroxyindole
Synonyms INDOLE-5,6-DIOL
DOPAMINE LUTINE
5,6-DIHYDROXYINDOLE
DIHYDROXYINDOLE
5,6-Dihydroxy-1H-indole
1H-indole-5,6-diol
5,6-DIYDROXYINDOLE
5,6-Dihydroxy Indole

Molecular Structure

Molecular Formula C8H7NO2
Molecular Weight 149.15
CAS Registry Number 3131-52-0
EINECS 412-130-9
Properties
Melting point 140 °C
Boiling point 411.2±25.0 °C
density 1.510±0.06 g/cm3
pka 9.81±0.40

Application advantages of 5,6-Dihydroxyindole:
5,6-Dihydroxyindole (DHI) is an important intermediate of melanin, was first
found in a plant in nature. The pure 5,6- dihydroxyindole is a colorless needle
crystal with a melting point of 140℃, which is soluble in hot water but
insoluble in petroleum ether. It is stable in crystalline state, but it quickly
oxidizes into melanin-like substance in slightly alkaline solution. Because it
has little irritation to human skin, it is used to replace commonly used
aniline compounds (with carcinogenic, teratogenic and allergic adverse effects)
as the active ingredient for blackening in some detergent products. For
example, Japan's beauty source hair dye uses it as one of the main active
ingredients. It is also a good antioxidant and can be used as an intermediate
for the synthesis of some amino acids, alkaloids and tryptamine.

In recent years, with the development of new varieties of fine chemicals, the
uses of 5,6- dihydroxy flavor are constantly emerging. Many units have carried
out the synthesis research of this product, but there is no report of batch
supply yet. It is noteworthy that UIV CHEM has successfully broken through the
mass production process, and we can provide gram-level to ton-level supply.

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