81694-33-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81694-33-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,9 and 4 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81694-33:
(7*8)+(6*1)+(5*6)+(4*9)+(3*4)+(2*3)+(1*3)=149
149 % 10 = 9
So 81694-33-9 is a valid CAS Registry Number.