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186023-39-2

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186023-39-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 186023-39-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,0,2 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 186023-39:
(8*1)+(7*8)+(6*6)+(5*0)+(4*2)+(3*3)+(2*3)+(1*9)=132
132 % 10 = 2
So 186023-39-2 is a valid CAS Registry Number.

186023-39-2Relevant articles and documents

Salicylaldehyde ester-induced chemoselective peptide ligations: Enabling generation of natural peptidic linkages at the serine/threonine sites

Li, Xuechen,Lam, Hiu Yung,Zhang, Yinfeng,Chan, Chun Kei

supporting information; experimental part, p. 1724 - 1727 (2010/12/18)

A serine/threonine-based chemoselective ligation method is described. It uses an O-salicylaldehyde ester at the C-terminus, reacting with N-terminal serine or threonine to realize peptide ligations. The utility of the O-salicylaldehyde ester enables the rapid coupling reaction and the production of an N,O-benzylidene acetal intermediate, which is readily converted into natural peptidic linkages (Xaa-Ser/Thr) at the ligation site.

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