Cas 149875-52-5,C18H16N4OS

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Check Digit Verification of cas no

The CAS Registry Mumber 149875-52-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,8,7 and 5 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 149875-52:
(8*1)+(7*4)+(6*9)+(5*8)+(4*7)+(3*5)+(2*5)+(1*2)=185
185 % 10 = 5
So 149875-52-5 is a valid CAS Registry Number.

149875-52-5Upstream product

127251-91-6 N-(2-Thioxo-4-p-tolyl-2H-pyrimidin-1-yl)-benzamide

149875-52-5Downstream Products

149875-57-0 N-(2-Oxo-4-p-tolyl-2H-pyrimidin-1-yl)-benzamide

149875-52-5Relevant academic research and scientific papers

Electrophilic aminiation of pyrimidine-2-thiones. Synthesis of zwitterionic 2-aminothiophyrimidinium-N-ylides, pyrimidine-2-ones and bicyclic pyrimidinium compounds

Riemer,Patzel,Hassoun,Liebscher,Friedrichsen,Jones

, p. 3767 - 3780 (1993)

1-Amino-pyrimidine-2-thiones 2 or 11 and 1-acylmethyl-pyrimidine-2-thiones 13 react with 3,3-pentamethyleneoxaziridine 3 or hydroxylamine-O-sulfonic acid by electrophilic amination of the sulfur atom yielding zwitterionic 2-amino-1-imidothiopyrimidinium-N

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