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(2Z)-5,7-dibromo-2-(5,7-dibromo-3-oxo-1H-indol-2-ylidene)-1H-indol-3-one

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Origin: China

Cas No: 2475-31-2

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Products Specification
Product Description

Property

CAS No.: 2475-31-2 Formula: C16H6Br4N2O2 Molecular Weight: 577.84700

Basic Info

Chemical Name	(2Z)-5,7-dibromo-2-(5,7-dibromo-3-oxo-1H-indol-2-ylidene)-1H-indol-3-one
Synonyms	Tetrabromoindigo; Indigo 4B; 5,5',7,7'-tetrabromoindigo red; Vat Blue 4B; Tetra Blue 2B; Bromindigo 2BD; Durindone Blue 4B; Arlanone Blue 2B; Ciba Blue 2B; Bromindigo; 5,5',7,7'-Tetrabromoindigo; Ciba Brilliant Blue BS;
CAS No.	2475-31-2
Molecular Formula	C16H6Br4N2O2
Molecular Weight	577.84700
PSA	58.20000
LogP	6.14080

Properties

Appearance & Physical State	Dark blue powder
Density	2.313g/cm3
Boiling Point	563.4ºC at 760mmHg
Flash Point	294.5ºC
Refractive Index	1.762
Vapor Pressure	1.02E-12mmHg at 25°C

Safety Info

RTECS	NM3259100
HS Code	2933990090

Synthesis Route

Indigo→(2Z)-5,7-dibromo-2-(5,7-dibromo-3-oxo-1H-indol-2-ylidene)-1H-indol-3-one
3,5-Dibromobenzaldehyde→(2Z)-5,7-dibromo-2-(5,7-dibromo-3-oxo-1H-indol-2-ylidene)-1H-indol-3-one
3,5-dibromo-2-(carboxymethyl-amino)-benzoic acid→(2Z)-5,7-dibromo-2-(5,7-dibromo-3-oxo-1H-indol-2-ylidene)-1H-indol-3-one

Precursor

N-(2-CARBOXYPHENYL)GLYCINE
3,5-Dibromobenzaldehyde
Indigo
3,5-dibromo-2-(carboxymethyl-amino)-benzoic acid

Downstream Product

5,7-Dibromoisatin
6,8-dibromo-1H-3,1-benzoxazine-2,4-dione
4,5,7-Tribromo-2-(4,5,7-tribromo-3-oxo-1,3-dihydro-2H-indol-2-yli dene)-1,2-dihydro-3H-indol-3-one

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