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Vat Black 8

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Vat Black 8 / CAS : 2278-50-4

Appearance Black powder. Insoluble in water, acetone, ethanol, chloroform, toluene, slightly soluble in o-chlorophenol, pyridine. Yellow greenish color in concentrated sulfuric acid, resulting in a black precipitate upon dilution. It was blue and green in alkali solution of insurance powder and red and brown in acid solution. UN 0.0
HS 32041590 DG Class 0.0
Synonyms Caledon Grey M; Vat Grey S; Benzadone Grey M; Vat Grey V; Paradone Grey M; Ostanthren Grey M; Mikethrene Grey M; Indanthren Grey M; Vat Gray S; 1H-Benz[6,7]Indazole[2,3,4-Fgh]Naphth[2'',3''; C.I. Vat Black 8; 1H-Benz[6,7]Indazolo[2,3,4-Fgh]Naphth[2'',3'':6',7']Indolo[3',2':5,6]Anthra[2,1,9-Mna]Acridine-2,7,10,15-Tetrone;; Caledon Grey M;; Benzadone Grey M;; Paradone Grey MG
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Properties

Summary

Formula
C45H19N3O4
Molecular Mass
665.65000
Exact Mass
665.13800
PSA
101.37000
Logp
8.85040
IUPAC
6,42,48-triazatridecacyclo[25.18.2.139,42.02,22.05,21.07,20.08,17.010,15.024,46.028,41.031,40.033,38.043,47]octatetraconta-1(45),2(22),3,5(21),7(20),8(17),10,12,14,18,24(46),25,27(47),28(41),29,31(40),33,35,37,39(48),43-henicosaene-9,16,23,32-tetrone
SMILES
C1=CC=C2C(=C1)C3=NN4C5=CC=C6C7=C(C8=C(C=C7)NC9=C8C=CC1=C9C(=O)C7=CC=CC=C7C1=O)C(=O)C1=C6C5=C(C=C1)C1=C4C3=C(C2=O)C=C1

Attribute classification

Matter Classification
organic
Category
Dyestuffs and Pigments > Vat Dyes

Chemical and Physical Properties

Density
1.2394 (rough estimate)
Boiling Point
685.55°C (rough estimate)
Appearance
Black powder. Insoluble in water, acetone, ethanol, chloroform, toluene, slightly soluble in o-chlorophenol, pyridine. Yellow greenish color in concentrated sulfuric acid, resulting in a black precipitate upon dilution. It was blue and green in alkali solution of insurance powder and red and brown in acid solution.

Export information

HS Code
32041590
Export Rebate
0%
UN No.
0.0
DG-Class
0.0

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