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117833-74-6

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117833-74-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117833-74-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,8,3 and 3 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 117833-74:
(8*1)+(7*1)+(6*7)+(5*8)+(4*3)+(3*3)+(2*7)+(1*4)=136
136 % 10 = 6
So 117833-74-6 is a valid CAS Registry Number.

117833-74-6Downstream Products

117833-74-6Relevant articles and documents

THE USE OF PENICILLIN ACYLASE FOR SELECTIVE N-TERMINAL DEPROTECTION IN PEPTIDE SYNTHESIS

Waldmann, Herbert

, p. 1131 - 1134 (2007/10/02)

Penicillin acylase from E. coli (EC 3.5.1.11) accepts a broad range of N-phenylacetyl-dipeptide esters as substrates.The enzyme hydrolyses the N-terminal protecting group selectively at room temp. and pH=8.1 without affecting the peptide- or the ester-bonds.Alternatively methyl-, benzyl-, tert-butyl and allyl esters can be cleaved chemically leaving the phenylacetamido moiety intact.

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