3881-93-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3881-93-4 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, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 3881-93:
(6*3)+(5*8)+(4*8)+(3*1)+(2*9)+(1*3)=114
114 % 10 = 4
So 3881-93-4 is a valid CAS Registry Number.