77638-78-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77638-78-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,3 and 8 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 77638-78:
(7*7)+(6*7)+(5*6)+(4*3)+(3*8)+(2*7)+(1*8)=179
179 % 10 = 9
So 77638-78-9 is a valid CAS Registry Number.
77638-78-9Relevant academic research and scientific papers
STEREOSELECTIVE SYNTHESIS OF dl-PROSAFRININE AND dl-PSEUDOCARPAMIC ACID
Natsume, Mitsutaka,Ogawa, Masashi
, p. 615 - 618 (2007/10/02)
The SnCl2-effected carbon-carbon bond formation of endoperoxides was applied to alkyl substituted 1,2-dihydropyridines 1a-h to produce 3a-h and 4a-h, whose stereochemistry was clarified.Starting from 3e and 4e, piperidine alkaloids, prosafrinine and pseud