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208929-09-3

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208929-09-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 208929-09-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,9,2 and 9 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 208929-09:
(8*2)+(7*0)+(6*8)+(5*9)+(4*2)+(3*9)+(2*0)+(1*9)=153
153 % 10 = 3
So 208929-09-3 is a valid CAS Registry Number.

208929-09-3Relevant articles and documents

Synthesis of δ-(L-α-aminoadipoyl)-L-cysteinyl-D-(O-methyl)-D- allothreonine a substrate for isopenicillin-N synthase and its O-Methyl-D- threonine epimer

Petursson, Sigthor,Baldwin, Jack E.

, p. 6001 - 6010 (2007/10/03)

The paper describes the synthesis of two epimeric tripeptides δ-(L-α- aminoadipoyl)-L-cysteinyl-D-(O-methyl)-D-threonine (13) and δ-(L-α- aminoadipoyl)-L-cysteinyl-D-(O-methyl)-D-allothreonine (14), modified substrates for the isopenicillin-N synthase enz

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