91108-33-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91108-33-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,0 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 91108-33:
(7*9)+(6*1)+(5*1)+(4*0)+(3*8)+(2*3)+(1*3)=107
107 % 10 = 7
So 91108-33-7 is a valid CAS Registry Number.