66787-11-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66787-11-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,7,8 and 7 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 66787-11:
(7*6)+(6*6)+(5*7)+(4*8)+(3*7)+(2*1)+(1*1)=169
169 % 10 = 9
So 66787-11-9 is a valid CAS Registry Number.