74320-39-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74320-39-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,3,2 and 0 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 74320-39:
(7*7)+(6*4)+(5*3)+(4*2)+(3*0)+(2*3)+(1*9)=111
111 % 10 = 1
So 74320-39-1 is a valid CAS Registry Number.
74320-39-1Relevant articles and documents
A Formal Total Synthesis of (+/-)-Vernolepin and (+/-)-Vernomenin
Wakamatsu, Takeshi,Hara, Hiromu,Ban, Yoshio
, p. 108 - 112 (2007/10/02)
A formal total synthesis of (+/-)-vernolepin (1) and (+/-)-vernomenin (2) has been achieved starting from cis-4-cyclohexene-1,2-dicarboxylic acid monomethyl ester (5) via a novel intramolecular alkylation of 14 -> 16.The penultimate target was directed to