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87633-85-0

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87633-85-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87633-85-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,6,3 and 3 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 87633-85:
(7*8)+(6*7)+(5*6)+(4*3)+(3*3)+(2*8)+(1*5)=170
170 % 10 = 0
So 87633-85-0 is a valid CAS Registry Number.

87633-85-0Relevant articles and documents

Conversion of Dipyridazinothiazines into Dipyridazinopyrroles through a Base-Induced Extrusion of Sulfur

Kaji, Kenji,Nagashima, Hiromu,Oda, Hirohisa

, p. 1423 - 1432 (2007/10/02)

A novel ring contraction for the conversion of 2,7-disubstituted 10H-dipyridazinothiazine-1,6-(2H,7H)-diones (4'a-c) into the corresponding 2,6-disubstituted 9H-dipyridazinopyrrole-1,5(2H,6H)-diones (7'a-c), through a ba

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