76164-09-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 76164-09-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,1,6 and 4 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 76164-09:
(7*7)+(6*6)+(5*1)+(4*6)+(3*4)+(2*0)+(1*9)=135
135 % 10 = 5
So 76164-09-5 is a valid CAS Registry Number.