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187866-39-3

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187866-39-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 187866-39-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,8,6 and 6 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 187866-39:
(8*1)+(7*8)+(6*7)+(5*8)+(4*6)+(3*6)+(2*3)+(1*9)=203
203 % 10 = 3
So 187866-39-3 is a valid CAS Registry Number.

187866-39-3Downstream Products

187866-39-3Relevant articles and documents

A practical and eco-friendly synthesis of stereocontrolled alkylaminomethylidene derivatives of 2-thiohydantoins by dimethylamine substitution

Chérouvrier, Jean-René,Carreaux, Fran?ois,Bazureau, Jean Pierre

, p. 8745 - 8749 (2002)

3-Alkyl-5-dimethyaminomethylidene-2-thioxo-imidazolidin-4-ones 3(a-c) available in two steps from methyl glycinate hydrochloride, represent a useful synthetic tool for efficient and mild solventless preparations of new alkylaminomethylidene derivatives of 2-thiohydantoins 8(a-e), 10(a-c) and 12(a-d) by stereocontrolled transamination reactions under microwave irradiations. The 1H, 13C NMR spectrum and the (5Z)-conformation of some representatives products are also discussed.

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