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(2S,4R,5R)-3,3-Dimethyl-4,7-dioxo-4λ4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

76946-53-7

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76946-53-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 76946-53-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,9,4 and 6 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 76946-53:
(7*7)+(6*6)+(5*9)+(4*4)+(3*6)+(2*5)+(1*3)=177
177 % 10 = 7
So 76946-53-7 is a valid CAS Registry Number.

76946-53-7Relevant academic research and scientific papers

Syntheses of (6S)-cephalosporins from 6-aminopenicillanic acid

Fekner, Tomasz,Baldwin, Jack E,Adlington, Robert M,Jones, Timothy W,Prout, C.Keith,Schofield, Christopher J

, p. 6053 - 6074 (2007/10/03)

Two practical routes to (6S,7S)-cephalosporins from 6-aminopenicillanic acid (6-APA) are described. In the first, 6-APA was converted to (2S,4S,5S,6S)-penicillin sulfoxide 49, which underwent Morin ring expansion to a protected (6S,7S)-cephem 50. In the s

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