32780-33-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 32780-33-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,2,7,8 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 32780-33:
(7*3)+(6*2)+(5*7)+(4*8)+(3*0)+(2*3)+(1*3)=109
109 % 10 = 9
So 32780-33-9 is a valid CAS Registry Number.