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203123-15-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203123-15-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,1,2 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 203123-15:
63 % 10 = 3
So 203123-15-3 is a valid CAS Registry Number.

203123-15-3Downstream Products

203123-15-3Relevant articles and documents

Synthesis of Pyrazolo[3,4-c][1,2]thiazin-4(3H)-one 2,2-Dioxides, New Heterocycles

Coppo, Frank T.,Fawzi, Maged M.

, p. 1693 - 1697 (2007/10/03)

The reaction of substituted ethyl 5-aminopyrazole-4-carboxylatcs with two equivalents of methanesulfonyl chloride gave the substituted ethyl 5-[bis(methylsufonyl)amino]-1H-pyrazole-4-carboxylates II. Removal of one of the methanesulfonyl groups, followed

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