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501683-37-0

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501683-37-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 501683-37-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,1,6,8 and 3 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 501683-37:
(8*5)+(7*0)+(6*1)+(5*6)+(4*8)+(3*3)+(2*3)+(1*7)=130
130 % 10 = 0
So 501683-37-0 is a valid CAS Registry Number.

501683-37-0Upstream product

501683-37-0Relevant articles and documents

Synthesis of heterocyclic systems by the reaction of zwitterionic compounds with isocyanates and thiophosgene

Zaleska, Barbara,Karelus, Marcin

, p. 1831 - 1834 (2002)

The reaction of various isocyanates or thiophosgene with zwitterionic pyrimidinylium and 1,3-diazepinylium derivatives has led to the formation of unusually substituted [1,3]oxazolo[3,4-a]pyrimidines and novel heterocyclic system such as [1,3]oxazolo[3,4-

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