VAT BLACK 27

CAS No.：2379-81-9

Important Notice

This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
The purchaser must not use this product, or supply it to another party, for personal consumption, sports or fitness, weight loss, health supplements, food, or animal feed.

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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

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)

Safety Information

MSDS Information

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.

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 27 Preparation Products And Raw materials

Raw materials	Sulfuric acid-->Copper(II) sulfate-->Copper-->1,2-Dichlorobenzene-->Potassium chlorate-->1-Amino anthraquinone-->1,4-Diamino anthraquinone-->1,4-Diamino-2,3-dihydroanthraquinone-->1-Chloro anthraquinone
Preparation Products	Vat Brown 68-->Vat Brown 72

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