330641-42-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 330641-42-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,0,6,4 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 330641-42:
(8*3)+(7*3)+(6*0)+(5*6)+(4*4)+(3*1)+(2*4)+(1*2)=104
104 % 10 = 4
So 330641-42-4 is a valid CAS Registry Number.