66819-36-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66819-36-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,8,1 and 9 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 66819-36:
(7*6)+(6*6)+(5*8)+(4*1)+(3*9)+(2*3)+(1*6)=161
161 % 10 = 1
So 66819-36-1 is a valid CAS Registry Number.