3881-89-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3881-89-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,8,8 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 3881-89:
(6*3)+(5*8)+(4*8)+(3*1)+(2*8)+(1*9)=118
118 % 10 = 8
So 3881-89-8 is a valid CAS Registry Number.