1429221-12-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1429221-12-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,9,2,2 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1429221-12:
(9*1)+(8*4)+(7*2)+(6*9)+(5*2)+(4*2)+(3*1)+(2*1)+(1*2)=134
134 % 10 = 4
So 1429221-12-4 is a valid CAS Registry Number.