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(4-(4'-methoxybenzyloxycarbonyl)-benzoyl)-(S-diphenylmethyl-L-cysteinyl)-(D-valine benzhydryl ester) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

129838-65-9

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129838-65-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129838-65-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,8,3 and 8 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 129838-65:
(8*1)+(7*2)+(6*9)+(5*8)+(4*3)+(3*8)+(2*6)+(1*5)=169
169 % 10 = 9
So 129838-65-9 is a valid CAS Registry Number.

129838-65-9Relevant academic research and scientific papers

Side Chain Specificity in the Enzymatic Synthesis of Penicillins

Baldwin, Jack E.,Schofield, Christopher J.,Smith, Bradley D.

, p. 3019 - 3028 (2007/10/02)

5-Carboxynaphth-1-oyl-, 4-carboxybenzoyl-, trans-5-carboxy-3-pentenoyl- and cis-5-carboxy-3-pentenoyl-L-cysteinyl-D-valine were shown to be converted by isopenicillin N synthetase to their corresponding penicillins in yields of 90percent, 12percent, 40per

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