907963-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 907963-49-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,7,9,6 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 907963-49:
(8*9)+(7*0)+(6*7)+(5*9)+(4*6)+(3*3)+(2*4)+(1*9)=209
209 % 10 = 9
So 907963-49-9 is a valid CAS Registry Number.
907963-49-9Relevant articles and documents
Asymmetric Carboalkoxyalkylidenation with a Chiral Horner-Wadsworth-Emmons Reagent
Denmark, Scott E.,Rivera, Isaac
, p. 6887 - 6889 (1994)
The asymmetric carboalkoxyalkylidenation of 4-substituted cyclohexanones was effected by the use of chirally modified Horner-Wadsworth-Emmons (HWE) reagents in good yields (78-82percent) as well as high levels of enantioselectivity (78-86percent ee).