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143317-15-1

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143317-15-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143317-15-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,3,1 and 7 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 143317-15:
(8*1)+(7*4)+(6*3)+(5*3)+(4*1)+(3*7)+(2*1)+(1*5)=101
101 % 10 = 1
So 143317-15-1 is a valid CAS Registry Number.

143317-15-1Downstream Products

143317-15-1Relevant articles and documents

Synthesis and reactions of Biginelli compounds -5. Facile preparation and resolution of a stable 5-dihydropyrimidinecarboxylic acid

Kappe, C. Oliver,Uray, Georg,Roschger, Peter,Lindner, Wolfgang,Kratky, Christoph,Keller, Walter

, p. 5473 - 5480 (1992)

The synthesis of enantiomerically pure 5-dihydropyrimidinecarboxylic acids 7a,b is described. Condensation of benzyl acetoacetate with methylurea and 2-naphthaldehyde gave Biginelli compound 3b, which after methylation and removal of the benzyl group led

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