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202273-29-8

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202273-29-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 202273-29-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,2,7 and 3 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 202273-29:
(8*2)+(7*0)+(6*2)+(5*2)+(4*7)+(3*3)+(2*2)+(1*9)=88
88 % 10 = 8
So 202273-29-8 is a valid CAS Registry Number.

202273-29-8Relevant articles and documents

Phase-transfer catalyzed mild synthesis of 1,5-diacyl thiocarbohydrazides and their solventless expeditious transformation to 1,5-diacyl carbohydrazides

Li, Zheng,Zhao, Yanlong,Yang, Jingya

, p. 79 - 84 (2007/10/03)

1,5-diacyl thiocarbohydrazides were efficiently synthesized by the reactions of thiocarbohydrazide with a variety of aroyl chlorides at r.t. using PEG-400 as a phase-transfer catalyst. Meanwhile, 1,5-diacyl thiocarbohydrazides were be expeditiously transf

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