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139764-38-8

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139764-38-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139764-38-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,7,6 and 4 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 139764-38:
(8*1)+(7*3)+(6*9)+(5*7)+(4*6)+(3*4)+(2*3)+(1*8)=168
168 % 10 = 8
So 139764-38-8 is a valid CAS Registry Number.

139764-38-8Relevant articles and documents

Supramolecular asymmetric induction with a NADH model reagent grafted on silica

Losset, D.,Dupas, G.,Duflos, J.,Bourguignon, J.,Queguiner, G.

, p. 721 - 729 (2007/10/02)

A model of NADH issued from a thieno dihydropyridine derivative has been grafted onto a silica matrix bearing on another part a chiral auxiliary.Two strategies were implemented to obtain the corresponding reagents.In the first case, the reagent and the auxiliary were grafted to the silica by means of two different arms.In the second case, the reagent and the auxiliary were linked to two arms which are brought together before beiing linked to the silica matrix.The reagents thus obtained were involved in the reduction of methyl phenyl glyoxylate and enantiomeric excesses of 20 and 35percent were obtained.Key words: NADH models / grafting on silica / supramolecular induction

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