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132735-34-3

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132735-34-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132735-34-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,7,3 and 5 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 132735-34:
(8*1)+(7*3)+(6*2)+(5*7)+(4*3)+(3*5)+(2*3)+(1*4)=113
113 % 10 = 3
So 132735-34-3 is a valid CAS Registry Number.

132735-34-3Relevant articles and documents

Distinction of Diastereofaces at the α-Position of Chiral Cyclic Acetals

Tanaka, Naoki,Suemune, Hiroshi,Sakai, Kiyoshi

, p. 1075 - 1086 (2007/10/02)

Key words: chiral acetal; asymmetric 1,2-addition; asymmetric 1,4-addition; C2 symmetry; determination of optical purity; chiral carboxylic acid Asymmetric 1,2- and 1,4-additions to substrates with an acetal as a chiral auxiliary have been studied.Among the tested substrates, C2-symmetrical 5c was most effective for 1,2-addition with MeTi(O-iPr)3.Furthermore, C2-symmetrical carbinol 5b has been found to be a potent 1H-NMR reagent for determination of optical purity of carboxylic acids with a chiral center at the α-position.

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