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83520-60-9

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83520-60-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83520-60-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,5,2 and 0 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 83520-60:
(7*8)+(6*3)+(5*5)+(4*2)+(3*0)+(2*6)+(1*0)=119
119 % 10 = 9
So 83520-60-9 is a valid CAS Registry Number.

83520-60-9Downstream Products

83520-60-9Relevant articles and documents

Syntheses and Reactions of Some 2,3-Disubstituted Pyrazine Monoxides

Watahiki, Hiroko,Tsutsui, Mayumi,Akita, Yasuo,Watanabe, Tokuhiro,Kurihara, Teruo

, p. 465 - 473 (2007/10/02)

The reactions of 2,3-dimethyl- (4), 2,3-diphenyl- (6), and 2-methyl-3-phenyl-pyrazine monoxides (8 and 9) with phosphoryl chloride and acetic anhydride resulted in giving monochloro- and monoacetoxy-pyrazines in almost all cases.However, the reaction of 6 with acetic anhydride afforded exceptionally a diacetoxydihydropyrazine.These products were converted further to hydroxy or dichloro derivatives.

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