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134563-20-5

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134563-20-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134563-20-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,5,6 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 134563-20:
(8*1)+(7*3)+(6*4)+(5*5)+(4*6)+(3*3)+(2*2)+(1*0)=115
115 % 10 = 5
So 134563-20-5 is a valid CAS Registry Number.

134563-20-5Downstream Products

134563-20-5Relevant articles and documents

Structure activity relationship of inhibitors specific for prolyl endopeptidase.

Yoshimoto,Tsuru,Yamamoto,Ikezawa,Furukawa

, p. 37 - 43 (2007/10/02)

Structural requirements of N-blocked L-proline derivatives as specific inhibitors for prolyl endopeptidase were investigated using a series of substrate analogs. Replacement of L-proline by its D-isomer remarkably reduced the inhibition. Introduction of a sulfur atom in proline and/or in the penultimate pyrrolidine rings significantly increased the inhibition, but the introduction of oxygen rather diminished the activity. A peptide linkage (acid-amide bond) between the proline and the pyrrolidine ring was also required to keep the inhibitory activity. A benzyloxycarbonyl group was most effective as an N-blocked component of the inhibitors.

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