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Indigo

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Indigo / CAS : 482-89-3

Appearance Dark blue powder (or particle) UN -
HS 32041510 DG Class -
Synonyms Indigo Powder; Indigon; Indigotin; Indigovs; Indigo Blue; (2,2'-Biindoline)-3,3'-Dione; (Delta(2,2'(3H,3'H))-Biindole)-3,3'-Dione; Pigment Blue; Indigo blue Grains
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Properties

Summary

Formula
C16H10N2O2
Molecular Mass
262.26300
Exact Mass
262.07400
PSA
58.20000
Logp
3.09080
IUPAC
2-(3-hydroxy-1H-indol-2-yl)indol-3-one
SMILES
C1=CC=C2C(=C1)C(=C(N2)C3=NC4=CC=CC=C4C3=O)O

Attribute classification

Matter Classification
organic
Category
Dyestuffs and Pigments > Intermediates
Dyestuffs and Pigments > Vat Dyes

Chemical and Physical Properties

Melting Point
>300 °C(lit.)
Density
1.01 g/mL at 20 °C
Boiling Point
400.4 ºC at 760mmHg
Flash Point
158.2 ºC
Appearance
Dark blue powder (or particle)
Acidity and Basicity
alkalinity

Export information

HS Code
32041510
Export Rebate
0%
Risk Code
R36/37/38
Safety Label
Xi,Xn

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