634-44-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 634-44-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,3 and 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 634-44:
(5*6)+(4*3)+(3*4)+(2*4)+(1*4)=66
66 % 10 = 6
So 634-44-6 is a valid CAS Registry Number.