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71918-53-1

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71918-53-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71918-53-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,9,1 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 71918-53:
(7*7)+(6*1)+(5*9)+(4*1)+(3*8)+(2*5)+(1*3)=141
141 % 10 = 1
So 71918-53-1 is a valid CAS Registry Number.

71918-53-1Downstream Products

71918-53-1Relevant articles and documents

Studies on the Occurrence of Hydrogen Transfer, 73. - The Reduction of Prochiral Alkyl (Aryl) Ketones with Alkali Metal Amalgams Forming Carbinols and Pinakols

Horner, Leopold,Dickerhof, Karlheinz

, p. 1240 - 1258 (2007/10/02)

The factors are determined which influence the stereochemistry and the ratio (C/P) in the reduction of acetophenone with lithium, sodium, and potassium amalgam (Li/Hg, Na/Hg, K/Hg) leading to carbinol (C) and pinacol(P).The C/P ratio is influenced a) by proton donators, b) by quaternaryammonium salts, c) by bis-tertiary amines.In the presence of optically active quaternary ammonium salts and optically active bis-tertiary amines a low optical induction is observed both in pinacol and carbinol.An anomal dimerization product 20 is formed in the reduction of pivalophenone with Li/Hg.

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