294176-63-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 294176-63-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,4,1,7 and 6 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 294176-63:
(8*2)+(7*9)+(6*4)+(5*1)+(4*7)+(3*6)+(2*6)+(1*3)=169
169 % 10 = 9
So 294176-63-9 is a valid CAS Registry Number.
294176-63-9Relevant articles and documents
Convergent synthesis of 1α-hydroxyvitamin D5
Gao, Ling-Jie,Zhao, Xu-Yang,Vandewalle, Maurits,De Clercq, Pierre
, p. 2755 - 2759 (2000)
An eleven-step, high-yielding (46%) synthesis of 1α-hydro-xyvitamin D5 (2) starting from Vitamin D2 (4) is described, in which a Julia olefination sequence is used for the construction of the (24R)-ethyl-substituted side chain.
