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157886-33-4

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157886-33-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157886-33-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,8,8 and 6 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 157886-33:
(8*1)+(7*5)+(6*7)+(5*8)+(4*8)+(3*6)+(2*3)+(1*3)=184
184 % 10 = 4
So 157886-33-4 is a valid CAS Registry Number.

157886-33-4Downstream Products

157886-33-4Relevant articles and documents

Solution synthesis of a dimeric pentapeptide: Diketopiperazine cyclisation of Glu-Asp dipeptide esters and Asp-racemisation during segment condensation

Fischer,Solbakken,Undheim

, p. 2277 - 2288 (2007/10/02)

A haemoregulatory peptide analogue derived from the cystine-dimerised pentapeptide Glp-Glu-Asp-Cys-Lys-OH, in which the cystine residue has been replaced by an isosteric L,L-2,7-diaminosuberic acid moiety, was prepared by segment condensation in solution.

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