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117922-52-8

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117922-52-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117922-52-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,9,2 and 2 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 117922-52:
(8*1)+(7*1)+(6*7)+(5*9)+(4*2)+(3*2)+(2*5)+(1*2)=128
128 % 10 = 8
So 117922-52-8 is a valid CAS Registry Number.

117922-52-8Downstream Products

117922-52-8Relevant articles and documents

NEW SYTHESIS OF VASOPRESSIN AND ITS DE-9-GLYCINE ANALOGS

Panseuvich, O. S.,Chipens, G. I.,Korps, A. O.,Pavar, A. P.

, p. 370 - 375 (2007/10/02)

A unified scheme is proposed for the synthesis of vasopressin (I), de-9-glycinevasopressin (II), and de-9-glycinamidevasopressin (III) which has been developed on the basis of the tetrapeptide Glm-Asn-Cys(Bzl)-Pro and other homologous fragments of neurohypophyseal hormones as common initial and intermediate compounds.The free dithiols obtained by the reduction of protected derivatives of (I)-(III) by sodium in liquid ammonia have been oxidized to the corresponding cyclic disulfides (I)-(III) with the aid of 1 M H2O2 at 0-5 deg C and pH (8.5.The vasopressor activities of (I)-(III) a re, respectively 470 +/- 20, 1.7, and 0.5 IU/mg (rat, in vivo).

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