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258833-67-9

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258833-67-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 258833-67-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,8,8,3 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 258833-67:
(8*2)+(7*5)+(6*8)+(5*8)+(4*3)+(3*3)+(2*6)+(1*7)=179
179 % 10 = 9
So 258833-67-9 is a valid CAS Registry Number.

258833-67-9Downstream Products

258833-67-9Relevant articles and documents

New pyrazole containing bicarboxylic α-amino acids: Mimics of the cis amide bond

De Luca, Lidia,Falorni, Massimo,Giacomelli, Giampaolo,Porcheddu, Andrea

, p. 8701 - 8704 (2007/10/03)

A series of novel optically active α-amino acids, containing a pyrazole ring, which can be regarded as building blocks for peptidomimetics, have been prepared starting from readily available α-amino acids. The synthetic strategy employed allows the regio- and stereoselective preparation of 1,3- or 1,5-substituted pyrazolyl rings. The pyrazole containing peptidomimetics can be considered as analogues of peptides with a cis amide bond.

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