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128649-14-9

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128649-14-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128649-14-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,6,4 and 9 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 128649-14:
(8*1)+(7*2)+(6*8)+(5*6)+(4*4)+(3*9)+(2*1)+(1*4)=149
149 % 10 = 9
So 128649-14-9 is a valid CAS Registry Number.

128649-14-9Relevant articles and documents

OXIDATION OF ALDEHYDES TO α,β-UNSATURATED ALDEHYDES VIA α-CHLOROALDIMINES

Kimpe, Norbert De,Stevens, Christian

, p. 41 - 46 (2007/10/02)

The oxidation of aldehydes to α,β-unsaturated aldehydes has been performed by a sequence of reactions involving conversion into aldimines, chlorination at the α-position to form α-chloroaldimines, base-induced dehydrochlorination and hydrolysis.The four-step transformation can be executed without isolation of the intermediates.This method has been applied to the synthesis of an artificial flavor, i.e. 2-butyl-3-phenylpropenal.

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