80959-56-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80959-56-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,9,5 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 80959-56:
(7*8)+(6*0)+(5*9)+(4*5)+(3*9)+(2*5)+(1*6)=164
164 % 10 = 4
So 80959-56-4 is a valid CAS Registry Number.
80959-56-4Relevant articles and documents
REGIOSELECTIVITY OF β-VINYL-β-PROPIOLACTONE TOWARD VARIOUS NUCLEOPHILES
Fujisawa, Tamotsu,Sato, Toshio,Takeuchi, Masashi
, p. 71 - 74 (2007/10/02)
Regioselectivity in the reaction of β-vinyl-β-propiolactone with various nucleophiles was found to depend on the hard and soft acid and base (HSAB) principle.A hard base such as methoxide ion attacked the acyl carbon exclusively, while the nucleophilic at
