6633-51-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6633-51-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,6,3 and 3 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 6633-51:
(6*6)+(5*6)+(4*3)+(3*3)+(2*5)+(1*1)=98
98 % 10 = 8
So 6633-51-8 is a valid CAS Registry Number.