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724702-24-3

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724702-24-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 724702-24-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,4,7,0 and 2 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 724702-24:
(8*7)+(7*2)+(6*4)+(5*7)+(4*0)+(3*2)+(2*2)+(1*4)=143
143 % 10 = 3
So 724702-24-3 is a valid CAS Registry Number.

724702-24-3Relevant articles and documents

Asymmetric sulfur ylide based enantioselective synthesis of D-erythro-sphingosine

Morales-Serna, Jose Antonio,Llaveria, Josep,Diaz, Yolanda,Matheu, M. Isabel,Castillon, Sergio

supporting information; experimental part, p. 4502 - 4504 (2009/03/12)

An asymmetric sulfur ylide reaction was employed to prepare an epoxide intermediate in a convergent manner. This epoxide was efficiently transformed into D-erythro-sphingosine.

Highly Diastereoselective Synthesis of D-threo- and D-erythro-Sphingosine from Glycidol

Katsumura, Shigeo,Yamamoto, Noriyoshi,Fukuda, Etsuko,Iwama, Seiji

, p. 393 - 394 (2007/10/02)

D-Threo- and D-erythro-sphingosine, (1) and (2), inhibitors of protein kinase C, have been efficiently synthesized from glycidol through (R)-4-methoxycarbonyloxazolidinone (3) by selective mono-alkylation followed by highly diastereoselective reduction of the tin-substituted pentadecenyl ketone 5.

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