1280193-66-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1280193-66-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,0,1,9 and 3 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1280193-66:
(9*1)+(8*2)+(7*8)+(6*0)+(5*1)+(4*9)+(3*3)+(2*6)+(1*6)=149
149 % 10 = 9
So 1280193-66-9 is a valid CAS Registry Number.
1280193-66-9Relevant articles and documents
Disubstituted Z-allylic esters by Wittig-Schlosser reaction using methylenetriphenylphosphorane
Hodgson, David M.,Arif, Tanzeel
supporting information; experimental part, p. 2685 - 2687 (2011/04/25)
β-Lithiooxyphosphonium ylides, generated in situ from aldehydes and methylenetriphenylphosphorane, react with halomethyl esters to form disubstituted allylic esters in good yields and with high Z-selectivity.
