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180736-79-2

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180736-79-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 180736-79-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,0,7,3 and 6 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 180736-79:
(8*1)+(7*8)+(6*0)+(5*7)+(4*3)+(3*6)+(2*7)+(1*9)=152
152 % 10 = 2
So 180736-79-2 is a valid CAS Registry Number.

180736-79-2Relevant articles and documents

Syntheses of new 9- and 13-methylene isomers of retinal

Laurent,Prat,Valla,Andriamialisoa,Giraud,Labia,Potier

, p. 7221 - 7224 (2000)

Syntheses of new 9- and 13-methylene isomers of retinal via the '9-methylene-C-18 ketone' 1 or 'C-18 ketone' 2 are reported. (C) 2000 Published by Elsevier Science Ltd.

Stereoselective synthesis of 13Z retinoic acids via β-methylenealdehydes as synthons

Valla, Alain,Andriamialisoa, Zo,Giraud, Michel,Prat, Virginie,Laurent, Alain,Potier, Pierre

, p. 9235 - 9237 (2007/10/03)

A stereoselective synthesis of 13Z retinoic acids via β-methylenealdehydes is described. In methylene-de-oxo-bisubstitution reactions (Knoevenagel, Stobbe, etc.), these new synthons produce stereoselectively E olefins. Hence, a synthesis of 13Z retinoic acids is described, via a stereospecific monodecarboxylation of carboxy-14-retinoic acids.

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