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71757-13-6

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71757-13-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71757-13-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,7,5 and 7 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 71757-13:
(7*7)+(6*1)+(5*7)+(4*5)+(3*7)+(2*1)+(1*3)=136
136 % 10 = 6
So 71757-13-6 is a valid CAS Registry Number.

71757-13-6Relevant articles and documents

Cycloalkyl substituted N-nitrourea derivatives: A convenient synthesis and biological evaluation

Bai, Zhongyuan,Wei, Zengjun,Wang, Yunchun,Xu, Shengzhen,Li, Xuegang,Chen, Changshui,Cao, Xiufang

experimental part, p. 859 - 868 (2012/05/05)

A series of N-nitrourea derivatives bearing various cycloalkyl were conveniently obtained via three steps including nitration, carbamic chlorination, and aminolysis reactions. The structures of all newly synthesized compounds were elucidated and confirmed

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