Cas 140429-22-7,Pyridinium, 1-(1-chloro-2-phenylpropyl)-, chloride

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Check Digit Verification of cas no

The CAS Registry Mumber 140429-22-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,4,2 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 140429-22:
(8*1)+(7*4)+(6*0)+(5*4)+(4*2)+(3*9)+(2*2)+(1*2)=97
97 % 10 = 7
So 140429-22-7 is a valid CAS Registry Number.

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138624-40-5 diethyl 1,4-dihydro-2,6-dimethyl-4-(1-phenylethyl)-3,5-pyridinedicarboxylate

140429-22-7Relevant academic research and scientific papers

Novel syntheses of heterocycles with N-(1-haloalkyl)azinium halides. Part 2. Preparation of N-unsubstituted 1,4-dihydropyridines

Vanden Eynde,D'Orazio,Mayence,Maquestiau,Anders

, p. 1263 - 1268 (2007/10/02)

N-(1-Chloroalkyl)pyridinium chlorides, prepared from thionyl chloride, pyridine, and aldehydes, readily react with enaminocarbonyl derivatives to yield 1,4-dihydropyridines under mild and neutral conditions.

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