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VAT BLACK 27

Basic information Safety Supplier Related

VAT BLACK 27 Basic information

Product Name:
VAT BLACK 27
Synonyms:
  • N,N'-(10,15,16,17-tetrahydro-5,10,15,17-tetraoxo-5H-dinaphtho[2,3-a:2',3'-i]carbazole-6,9-diyl)bis(benzamide)
  • Vat Olive Green R
  • Benzamide, N,N-(10,15,16,17-tetrahydro-5,10,15,17-tetraoxo-5H-dinaphtho2,3-a:2,3-icarbazole-6,9-diyl)bis-
  • C.I.VATBLACK27
  • Vat black 27 (C.I. 69005)
  • Anthramar Olive R
  • Cibanone Olive 2R
  • Dycosthren Olive R
CAS:
2379-81-9
MF:
C42H23N3O6
MW:
665.65
EINECS:
219-169-9
Product Categories:
  • Organics
Mol File:
2379-81-9.mol
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VAT BLACK 27 Chemical Properties

Boiling point:
685.54°C (rough estimate)
Density 
1.537
refractive index 
1.7800 (estimate)
pka
11.19±0.20(Predicted)
EPA Substance Registry System
Benzamide, N,N'-(10,15,16,17-tetrahydro-5,10,15,17-tetraoxo-5H-dinaphtho[2,3-a:2',3'-i]carbazole-6,9-diyl)bis- (2379-81-9)
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VAT BLACK 27 Usage And Synthesis

Preparation

(a) N-(4-chloro-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide?and N-(4-amino-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide in the presence of copper condensation, then use Chlorosulfonic acid cyclization, (b) N-[4-(4-benzoylimino-9,10-dioxo-anthracen-1-ylidene)amino-9,10-dihydroxy-anthracen-1-yl]benzamide?in sulfuric acid central change, then the product oxidation.

Synthesis

4,4'-Bisbenzoylamino-1,1'-dianthrimide- 2,2'-carbazole , Indanthren Olive R, is prepared from 4,4'-bisbenzoylamino- 1,1'-dianthrimide by ring closure in concentrated sulfuric acid .

Properties and Applications

brown light grey. Black powder. Soluble in 2 – Chlorophenol, slightly soluble in Chloroform and Pyridine , not soluble in Acetone, Etanol, Toluene and Xylene. In concentrated sulfuric acid for red, dilution after flocculent olive green precipitation. Alkaline reduction leuco for red brown; Acid reduction leuco for yellow brown. Mainly used in cotton fiber dyeing, suitable for suspension pad dyeing, also used for cotton yarn of the jig dyeing cotton and the impregnation, rarely used for printing. Can with other VAT dye spell dyed noise. Dyeing silk, affinity and levelness were good, also used for Fiber/cotton blended fabric dyeing.

Standard Ironing Fastness Chlorine bleach Light Fastness Mercerized Oxygen bleach Soaping
Fading Stain
ISO 3 4-5 7 4-5 4-5 4-5 4-5
AATCC 3 4-5 7 4 4-5

VAT BLACK 27Supplier

Winchem Industrial Co. Ltd
Tel
0574-83851061
Email
info@win-chemical.com
China Langchem Inc.
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0086-21-58956006
Shanghai JONLN Reagent Co., Ltd.
Tel
400-0066400 13621662912
Email
422131432@qq.com
Alfa Chemistry
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1-516-6625404
Email
support@alfa-chemistry.com
Henan Alfa Chemical Co., Ltd
Tel
+8618339805032
Email
alfa4@alfachem.cn