CAS: 482-89-3 | Indigo Blue Dye

Molecular Formula: C16H10N2O2
Molecular Weight: 262.26
EINECS: 2207-586-9
Purity: 97% Min.
Package: 5 g / 25 g / 1 kg / 25 kg

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Features

CAS: 482-89-3 Indigo Dye

Indigo blue dye is used as biochemical agents and indicators.

SPECIFICATION OF CAS: 482-89-3 Indigo

ITEMS	SPECIFICATION
Colour Index	73000
Melting point	&驳迟;300&苍产蝉辫;°颁(濒颈迟.)
color	Dark blue to violet
storage temp.	Sealed in dry,Room Temperature
Merck	14,4943
Fp	&驳迟;220℃
refractive index	1.5800
form	Powder
EPA Substance Registry System	C.I. Vat Blue 1 (482-89-3)
Water Solubility	<0.1 g/100 mL
density	1.01 g/mL at 20 °C
Stability	Stable. Incompatible with strong oxidizing agents.
Boiling point	405.51°颁
pka	-3.83
InChIKey	COHYTHOBJLSHDF-BUHFOSPRSA-N
NIST Chemistry Reference	c.i. Vat blue 1(482-89-3)
BRN	88275
CAS DataBase Reference	482-89-3(CAS DataBase Reference)

Production of Indigo Dye:

Use phenylglycine as a raw material, indoxyl is obtained by alkali fusion, and then oxidized with air to obtain the product.

There are many ways to synthesize phenylglycine. my country basically adopts the condensation method of aniline 365bet娱乐book and chloroacetic acid. In order to facilitate the purification of phenylglycine, the insoluble iron salt is first prepared after removing impurities, and then converted into soluble sodium salt, which enters the alkali melting process.

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