177786-68-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 177786-68-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,7,8 and 6 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 177786-68:
(8*1)+(7*7)+(6*7)+(5*7)+(4*8)+(3*6)+(2*6)+(1*8)=204
204 % 10 = 4
So 177786-68-4 is a valid CAS Registry Number.