74965-59-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74965-59-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,9,6 and 5 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 74965-59:
(7*7)+(6*4)+(5*9)+(4*6)+(3*5)+(2*5)+(1*9)=176
176 % 10 = 6
So 74965-59-6 is a valid CAS Registry Number.
74965-59-6Relevant articles and documents
Intramolecular Cyclopropanation Using Iodonium Ylides. The 3,5-Cyclovitamin D Ring A Synthon
Moriarty, Robert M.,Kim, Joonggon,Guo, Liang
, p. 4129 - 4132 (1993)
The key intermediate 2b for 3,5-cyclovitamin D ring A synthon 13 was prepared in 80percent yield as a diastereomeric mixture (70:30) via intramolecular cyclopropanation from iodonium ylide 10b.