1291779-65-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1291779-65-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,1,7,7 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1291779-65:
(9*1)+(8*2)+(7*9)+(6*1)+(5*7)+(4*7)+(3*9)+(2*6)+(1*5)=201
201 % 10 = 1
So 1291779-65-1 is a valid CAS Registry Number.