126129-21-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 126129-21-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,1,2 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 126129-21:
(8*1)+(7*2)+(6*6)+(5*1)+(4*2)+(3*9)+(2*2)+(1*1)=103
103 % 10 = 3
So 126129-21-3 is a valid CAS Registry Number.