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118664-18-9

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118664-18-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118664-18-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,6,6 and 4 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 118664-18:
(8*1)+(7*1)+(6*8)+(5*6)+(4*6)+(3*4)+(2*1)+(1*8)=139
139 % 10 = 9
So 118664-18-9 is a valid CAS Registry Number.

118664-18-9Downstream Products

118664-18-9Relevant articles and documents

THE ASYMMETRIC MICHAEL ADDITION PROCESS INVOLVING CHIRAL IMINES : STEREOCHEMICAL DATA IN SUPPORT OF A CYCLIC-LIKE TRANSITION STATE

d' Angelo, Jean,Guingant, Andre,Riche, Claude,Chiaroni, Angele

, p. 2667 - 2670 (1988)

Addition of imine 4 to Michael acceptors 5 and 8 are both highly selective processes.The observed stereocontrol of the newly created asymmetric centers in the resulting adducts strongly supports cyclic-like transition states.

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