1262991-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1262991-72-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,2,9,9 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1262991-72:
(9*1)+(8*2)+(7*6)+(6*2)+(5*9)+(4*9)+(3*1)+(2*7)+(1*2)=179
179 % 10 = 9
So 1262991-72-9 is a valid CAS Registry Number.