330805-65-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 330805-65-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,0,8,0 and 5 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 330805-65:
(8*3)+(7*3)+(6*0)+(5*8)+(4*0)+(3*5)+(2*6)+(1*5)=117
117 % 10 = 7
So 330805-65-7 is a valid CAS Registry Number.