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76223-52-4

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76223-52-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 76223-52-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,2,2 and 3 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 76223-52:
(7*7)+(6*6)+(5*2)+(4*2)+(3*3)+(2*5)+(1*2)=124
124 % 10 = 4
So 76223-52-4 is a valid CAS Registry Number.

76223-52-4Relevant articles and documents

INVERSE SUBSTRATES IX. AMIDINOPHENYL ESTERS DERIVED FROM AMINO ACIDS AND PEPTIDES : SYNTHESIS AND PROPERTIES AS TRYPSIN SUBSTRATES

Fujioka, Toshiyuki,Tanizawa, Kazutaka,Nakayama, Hitoshi,Kanaoka, Yuichi

, p. 1899 - 1905 (2007/10/02)

Methods for preparation of p-amidinophenyl esters from amino acid derivatives are described.Blocking of the amidino function with the benzyloxycarbonyl group and its deblocking by catalytic hydrogenation after coupling were satisfactory. p-Amidino-phenyl esters are of special interest because of their susceptibility to the hydrolytic enzyme, trypsin, and some parameters of the hydrolysis of these compounds by tripsin are presented.Keywords - p-amidinophenyl ester; synthetic substrates; ester formation; trypsin; enzyme kinetics; deacylation rate constant

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