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78679-94-4

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78679-94-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78679-94-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,6,7 and 9 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 78679-94:
(7*7)+(6*8)+(5*6)+(4*7)+(3*9)+(2*9)+(1*4)=204
204 % 10 = 4
So 78679-94-4 is a valid CAS Registry Number.

78679-94-4Downstream Products

78679-94-4Relevant articles and documents

ARYLATION OF 2-AMINOANTHRAQUINONES BY HALOGENOBENZENES

Krasnosel'skaya, M. I.,Gudzenko, V. I.

, p. 717 - 720 (2007/10/02)

2-Amino-, 1-chloro-2-amino-, and 2-amino-3-chloroanthraquinones react with halogenobenzenes in nitrobenzene in the presence of an acid-combining agent and copper catalyst to form initially 2-phenylaminoanthraquinones, which are then converted into 2-(diphenylamino)anthraquinones.In the reaction of 1-chloro-2-aminoanthraquinone with halogenobenzenes, in addition to mono- and diarylation of the amino group dehalogenation of the anthraquinone ring occurs both in the initial compound and in the arylation products, and N,N'-diphenylindanthrene is also formed.

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