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71681-37-3

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71681-37-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71681-37-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,6,8 and 1 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 71681-37:
(7*7)+(6*1)+(5*6)+(4*8)+(3*1)+(2*3)+(1*7)=133
133 % 10 = 3
So 71681-37-3 is a valid CAS Registry Number.

71681-37-3Relevant articles and documents

A base-induced ring-opening process of 2-substituted-1,3,4-oxadiazoles for the generation of nitriles at room temperature

Lu, Guo-Ping,Lin, Ya-Mei

, p. 371 - 374 (2014/07/08)

A novel base-catalysed 1,3,4-oxadiazole fragmentation for the synthesis of nitriles at room temperature has been developed. This reaction is performed under transition-metal-free conditions, and provides a new ring cleavage reaction of 1,3,4-oxadiazoles in organic synthesis.

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