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157559-65-4

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157559-65-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157559-65-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,5,5 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 157559-65:
(8*1)+(7*5)+(6*7)+(5*5)+(4*5)+(3*9)+(2*6)+(1*5)=174
174 % 10 = 4
So 157559-65-4 is a valid CAS Registry Number.

157559-65-4Downstream Products

157559-65-4Relevant articles and documents

Unexpected ring enlargement of 2-hydrazono-2,3-dihydro-1,3-thiazoles to 1,3,4-thiadiazines

Pfeiffer, Wolf-Diethard,Ahlers, Klaus-Dieter,Saghyan, Ashot S.,Villinger, Alexander,Langer, Peter

, p. 76 - 87 (2014/02/14)

The cyclization of thiosemicarbazide with α-bromoacetophenone can result in the formation of isomeric 1,3,4-thiadiazines and two different thiazoles. We studied the use of 4-methyl- and 4-ethylthiosemicarbazide as dinucleophilic building blocks. In this c

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