Home Categories Dyes and Pigments Indigotin
A4980812

Indigotin , 97% , 482-89-3

Synonym(s):
Indigo blue;Indigotin

CAS NO.:482-89-3

Empirical Formula: C16H10N2O2

Molecular Weight: 262.26

MDL number: MFCD00005722

EINECS: 207-586-9

Pack Size Price Stock Quantity
1g RMB39.20 In Stock
5G RMB111.20 In Stock
25G RMB391.20 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: >300 °C(lit.)
Boiling point: 405.51°C (rough estimate)
Density  1.01 g/mL at 20 °C
vapor pressure  0Pa at 100℃
refractive index  1.5800 (estimate)
Flash point: >220℃
storage temp.  Sealed in dry,Room Temperature
solubility  DMSO (Slightly, Heated, Sonicated), DMF (Slightly)
form  Powder
pka -3.83±0.20(Predicted)
Colour Index  73000
color  Dark blue to violet
Water Solubility  <0.1 g/100 mL
Merck  14,4943
BRN  88275
Stability: Stable. Incompatible with strong oxidizing agents.
InChIKey COHYTHOBJLSHDF-BUHFOSPRSA-N
LogP 2.7 at 23℃

Description and Uses

Indigo, known chemically as indigotin, is a common blue dye that has been highly valued throughout history and has played a major role in trade and commerce since ancient times. The term indigo is often used to describe many blue dyes produced from a number of plants. For example, woad, a blue dye obtained from the plant Isatis tinctoria, was used throughout the Mediterannean and Europe and is often identified as indigo. True indigo comes from the leguminous plant of the genus Indigofera.
The Indigofera genus includes several hundred species, and indigo has been obtained from a number of these, but the dominant species for the dye are Indigofera tinctoria grown mainly in India and tropical Asia and Indigofera suff ructiosa from the tropical Americas. The name indigo comes from the Greek indikon and Latin indicum meaning “dye from India.” There is evidence that indigo was used several thou sand years b.c.e. Persian rugs containing indigo color exist from several thousand years b.c.e. Textile artifacts from Egyptian tombs provide evidence of indigo’s use by royalty from as far back as 2500 b.c.e. The writings of Herodotus from approximately 450 b.c.e. mention indigo’s use in the Mediterranean area.

Indigo is a chemical compound used as a dye in industrial clothing and textile processes. Also used in the synthesis of organic semiconductors. Dyes and metabolites.

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P302+P352-P305+P351+P338
Hazard Codes  Xi,Xn
Risk Statements  36/38-36/37/38-48/20/21/22
Safety Statements  26-36
RIDADR  UN 3264 8/PG 3
WGK Germany  1
RTECS  DU2988400
HS Code  32041510
Toxicity LD50 oral in mouse: > 32gm/kg

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