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Vat Yellow 4

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Vat Yellow 4 / CAS : 128-66-5

Appearance Yellow powder, insoluble in water, soluble in xylene, nitrobenzene and tetrahydronaphthalene, slightly soluble in acetone, ethanol, benzene, chloroform, toluene, pyridine and o-chlorophenol. In concentrated sulfuric acid, it shows red and green lotus color, and forms orange precipitation after dilution. It is jujube red in alkaline powder reducing solution and golden yellow in acid solution. UN 0.0
HS 29143990 DG Class 0.0
Synonyms Dibenzochrysenedione; C.I. Vat Yellow 4; Tyrion Yellow; 7,14-Dihydrodibenzo[B,I]Pyren-7,14-Dione; Dibenzopyrenequinnone; Tinon Golden Yellow; Dibenzo[B,Def]Chrysene-7,14-Dione; Dibenzo<A,H>Pyrene-7,14-Dione; Dibenzpyrenequinone; Helanthrene Yellow; Golden Yellow Zhkh; Vat Yellow Zhkh; Yellow Gk Base; Dibenzo<B,I>Pyrene-7,14-Quinone; Vat Golden Yellow; Vat Yellow 4 (C.I. 59100); C.I.59100; Indanthren Printing Yellow Gok; Tinon Golden Yellow Gk; 2,3,7,8-Dibenzopyrene-1,6-Quinone; Ahcovat Printing Golden Yellow; Ahcovat Printing Golden Yellow Gk
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Properties

Summary

Formula
C24H12O2
Molecular Mass
332.35100
Exact Mass
332.08400
PSA
34.14000
Logp
5.26260
IUPAC
hexacyclo[10.10.2.02,7.09,23.013,18.020,24]tetracosa-1(23),2,4,6,9,11,13,15,17,20(24),21-undecaene-8,19-dione
SMILES
C1=CC=C2C(=C1)C3=C4C(=CC=C5C4=C(C=C3)C(=O)C6=CC=CC=C65)C2=O

Attribute classification

Matter Classification
organic
Category
Dyestuffs and Pigments > Vat Dyes

Chemical and Physical Properties

Density
1.1459 (rough estimate)
Boiling Point
429.48°C (rough estimate)
Flash Point
219.9ºC
Appearance
Yellow powder, insoluble in water, soluble in xylene, nitrobenzene and tetrahydronaphthalene, slightly soluble in acetone, ethanol, benzene, chloroform, toluene, pyridine and o-chlorophenol. In concentrated sulfuric acid, it shows red and green lotus color, and forms orange precipitation after dilution. It is jujube red in alkaline powder reducing solution and golden yellow in acid solution.

Export information

HS Code
29143990
Export Rebate
13%
UN No.
0.0
DG-Class
0.0

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