1251832-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1251832-21-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,1,8,3 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1251832-21:
(9*1)+(8*2)+(7*5)+(6*1)+(5*8)+(4*3)+(3*2)+(2*2)+(1*1)=129
129 % 10 = 9
So 1251832-21-9 is a valid CAS Registry Number.