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(5R,6R)-3,7-Dioxo-6-phenylacetylamino-4-thia-1-aza-bicyclo[3.2.0]heptane-2,2-dicarboxylic acid tert-butyl ester 4-nitro-benzyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

87035-90-3

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87035-90-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87035-90-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,0,3 and 5 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 87035-90:
(7*8)+(6*7)+(5*0)+(4*3)+(3*5)+(2*9)+(1*0)=143
143 % 10 = 3
So 87035-90-3 is a valid CAS Registry Number.

87035-90-3Relevant academic research and scientific papers

A GENERAL ROUTE TOWARD 2-OXO-, 2-THIOXO- AND 2-IMINOPENAMS AND THEIR CONVERSION INTO 2-ALKOXY-, 2-ALKYLTHIO- AND 2-AMINOPENEMS

Cossement, Marc,Marchand-Brynaert, Jacqueline,Bogdan, Sophie,Ghosez, Leon

, p. 2563 - 2566 (2007/10/02)

A convenient methodology is described which allows the preparation of 2-oxo-, 2-thioxo- and 2-iminopenams from a single precursor readily prepared from penicillin G.These penams have been converted into the corresponding 2-heterosubstituted penems.

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