33083-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33083-91-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,0,8 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 33083-91:
(7*3)+(6*3)+(5*0)+(4*8)+(3*3)+(2*9)+(1*1)=99
99 % 10 = 9
So 33083-91-9 is a valid CAS Registry Number.