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135241-33-7

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135241-33-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135241-33-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,2,4 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 135241-33:
(8*1)+(7*3)+(6*5)+(5*2)+(4*4)+(3*1)+(2*3)+(1*3)=97
97 % 10 = 7
So 135241-33-7 is a valid CAS Registry Number.

135241-33-7Relevant articles and documents

Asymmetric Synthesis XXIV. Benzoquinolizidine Analogues of Podophyllotoxin via CN(R,S) Method.

Lienard, Philippe,Royer, Jacques,Quirion, Jean-Charles,Husson, Henri-Philippe

, p. 2489 - 2492 (2007/10/02)

The alkylation of 2-cyano-6-phenyloxazolopiperidin synthon 1 gave after reduction, the optically active pivotal amine 4.Bischler-Napieralski reaction of different aryl amides derived from 4 furnished the podophyllotoxin analogues 7, 8, and 9 after NaBH4 r

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