6555-64-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6555-64-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,5 and 5 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 6555-64:
(6*6)+(5*5)+(4*5)+(3*5)+(2*6)+(1*4)=112
112 % 10 = 2
So 6555-64-2 is a valid CAS Registry Number.