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136175-17-2

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136175-17-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136175-17-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,1,7 and 5 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 136175-17:
(8*1)+(7*3)+(6*6)+(5*1)+(4*7)+(3*5)+(2*1)+(1*7)=122
122 % 10 = 2
So 136175-17-2 is a valid CAS Registry Number.

136175-17-2Downstream Products

136175-17-2Relevant articles and documents

Studies of N-Terminal Templates for α-Helix Formation. Synthesis and Conformational Analysis of (2S,5S,8S,11S)-1-Acetyl-1,4-diaza-3-keto-5-carboxy-10-thiatricyclo4,8>tridecane (Ac-Hel1-OH)

Kemp, D. S.,Curran, Timothy P.,Davis, William M.,Boyd, James G.,Muendel, Christopher

, p. 6672 - 6682 (2007/10/02)

A convergent synthesis of the title compound, a conformationally restricted analogue of acetyl-L-prolyl-L-proline, from 1-acetyl-2(S)-carboxy-4(S)-mercaptopyrrolidine and trans-1-(tert-butoxycarbonyl)-2(S)-(methoxycarbonyl)-5(S)-pyrrolidine (Ac-Hel1-OH) is reported, along with a synthesis of (2S,8S,11S)-1-acetyl-1,4-diaza-3-keto-10-thiatricyclo4,8>tridecane.In the crystal and in CDCl3 solution the conformation of Ac-Hel1-OH is shown to approximate a staggered orientation at the 8,9-CC bond and an s-cis orientation at the acetyl amide bond.In DMF, DMSO, MeCN, and D2O significant amounts of the s-trans conformer are also present.

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