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188660-16-4

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188660-16-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188660-16-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,6,6 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 188660-16:
(8*1)+(7*8)+(6*8)+(5*6)+(4*6)+(3*0)+(2*1)+(1*6)=174
174 % 10 = 4
So 188660-16-4 is a valid CAS Registry Number.

188660-16-4Relevant articles and documents

Diastereoselective synthesis of 3,5-trans-(+)-(3R,5R)-3-carbomethoxycarbapenam from 3-hydroxypyridine: Questioning the stereochemical assignment of the natural product

Tanaka, Hideyuki,Sakagami, Hideki,Ogasawara, Kunio

, p. 93 - 96 (2007/10/03)

An enantio- and diastereoselective synthesis of the methyl ester of 3,5-trans-(3R,5R)-carbapenam-3-carboxylic acid from 3-hydroxypyridine via (2R,5S)-trans-5-acetoxy-2-allylpiperidine has been achieved by employing the piperidine-pyrrolidine ring-contract

A Facile Synthesis of (R)-4-Amino-3-hydroxybutanoic Acid (GABOB) from 3-Hydroxypyridine

Sakagami, Hideki,Kamikubo, Takashi,Ogasawara, Kunio

, p. 221 - 222 (2007/10/03)

(R)-4-Amino-3-hydroxybutanoic acid (GABOB) has been synthesized facilely from 3-hydroxypyridine via 1-carbobenzoxy-1,2,3,4-tetrahydro-3-hydroxypyridine employing lipase-mediated kinetic resolution.

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