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178171-40-9

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178171-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 178171-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,1,7 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 178171-40:
(8*1)+(7*7)+(6*8)+(5*1)+(4*7)+(3*1)+(2*4)+(1*0)=149
149 % 10 = 9
So 178171-40-9 is a valid CAS Registry Number.

178171-40-9Relevant articles and documents

Highly efficient and catalyst-free synthesis of unsymmetrical thioureas under solvent-free conditions

Halimehjani, Azim Ziyaei,Pourshojaei, Yaghoub,Saidi, Mohammad R.

, p. 32 - 34 (2009)

A highly efficient and simple synthesis of unsymmetrical thioureas is reported based on the reaction of readily synthesized dithiocarbamates with amines, without using any catalyst under solvent-free conditions. The short reaction time, high yields, and s

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