1891-82-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1891-82-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,9 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1891-82:
(6*1)+(5*8)+(4*9)+(3*1)+(2*8)+(1*2)=103
103 % 10 = 3
So 1891-82-3 is a valid CAS Registry Number.