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158670-54-3

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158670-54-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 158670-54-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,6,7 and 0 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 158670-54:
(8*1)+(7*5)+(6*8)+(5*6)+(4*7)+(3*0)+(2*5)+(1*4)=163
163 % 10 = 3
So 158670-54-3 is a valid CAS Registry Number.

158670-54-3Relevant articles and documents

Synthesis of N-Acylated Derivatives of 5,10-Dihydrophenazine

Mikulla, Markus,Muelhaupt, Rolf

, p. 1723 - 1728 (2007/10/02)

A family of N-mono- and N,N'-diacylated 5,10-dihydrophenazines (4-26) was prepared by reaction of 5,10-dihydrophenazine (1) or the corresponding 5,10-bis(trimethylsilyl) derivative (3) with acyl chlorides. 5,10-Bis(4-nitrobenzoyl)-5,10-dihydrophenazine (11) was hydrogenated to the new aromatic diamine 21 which is an interesting starting material for polymer syntheses. - Key words: Phenazines, 5,10-dihydro-

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