63609-91-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 63609-91-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,3,6,0 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 63609-91:
(7*6)+(6*3)+(5*6)+(4*0)+(3*9)+(2*9)+(1*1)=136
136 % 10 = 6
So 63609-91-6 is a valid CAS Registry Number.