6500-55-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6500-55-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,0 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 6500-55:
(6*6)+(5*5)+(4*0)+(3*0)+(2*5)+(1*5)=76
76 % 10 = 6
So 6500-55-6 is a valid CAS Registry Number.