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191217-16-0

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191217-16-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191217-16-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,2,1 and 7 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 191217-16:
(8*1)+(7*9)+(6*1)+(5*2)+(4*1)+(3*7)+(2*1)+(1*6)=120
120 % 10 = 0
So 191217-16-0 is a valid CAS Registry Number.

191217-16-0Relevant articles and documents

An approach to enantiomerically pure inverse γ-turn mimetics for use in solid-phase synthesis

Brickmann, Kay,Somfai, Peter,Kihlberg, Jan

, p. 3651 - 3654 (1997)

An inverse γ-turn mimetic, having a morpholin-3-one ring as the key structural unit, was prepared in enantiomerically pure form in seven steps and 37% overall yield starting from 2(R)-[1'(S)-azido-2'-phenylethyl]oxirane (3). The mimetic has side-chains corresponding to a Phe-Ala-Ala tripeptide but the synthetic route was designed to allow incorporation also of other side chains. Molecular mechanics calculations revealed that the torsional angles of the second residue of the mimetic were effectively locked into an inverse γ-turn like conformation.

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