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penicillin V sulphone p-nitrobenzyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

28974-32-5

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28974-32-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28974-32-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,9,7 and 4 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 28974-32:
(7*2)+(6*8)+(5*9)+(4*7)+(3*4)+(2*3)+(1*2)=155
155 % 10 = 5
So 28974-32-5 is a valid CAS Registry Number.

28974-32-5Relevant academic research and scientific papers

RETENTION OF STEREOCHEMISTRY IN THE RING-OPENING OF PENICILLIN V SULPHONE p-NITROBENZYL ESTER

Davis, Michael,Wu, Wen-Yang

, p. 183 - 188 (2007/10/02)

By careful control of the basic catalyst, the solvent, and the temperature, p-nitrobenzyl phenoxymethylpenicillinate 1,1-dioxide (penicillin V sulphone p-nitrobenzyl ester) (1d) can be converted into (2R,3R)-1-2-methyl-(p-nitrobenzyloxycarbonyl)prop-1-en

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