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93713-34-9

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93713-34-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93713-34-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,7,1 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 93713-34:
(7*9)+(6*3)+(5*7)+(4*1)+(3*3)+(2*3)+(1*4)=139
139 % 10 = 9
So 93713-34-9 is a valid CAS Registry Number.

93713-34-9Relevant articles and documents

ASYMMETRIC ALKYLATION OF CARBOXYAMIDES BY USING trans-2,5-DISUBSTITUTED PYRROLIDINES AS CHIRAL AUXILIARIES

Kawanami, Yasuhiro,Ito, Yoshio,Kitagawa, Toshiyuki,Taniguchi, Yoshiyuki,Katsuki, Tsutomu,Yamaguchi, Masaru

, p. 857 - 860 (2007/10/02)

trans-2,5-Bis(methoxymethyl)- and trans-2,5-bis(methoxymethoxymethyl)pyrrolidines proved to be excellent chiral auxiliaries for the asymmetric alkylation of the corresponding carboxyamide enolates giving good chemical yield and high stereoselectivity (invariably over 95percent de), with remarkable flexibility to substrates and reaction conditions.

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