841-64-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 841-64-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,4 and 1 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 841-64:
(5*8)+(4*4)+(3*1)+(2*6)+(1*4)=75
75 % 10 = 5
So 841-64-5 is a valid CAS Registry Number.