176688-76-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 176688-76-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,6,6,8 and 8 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 176688-76:
(8*1)+(7*7)+(6*6)+(5*6)+(4*8)+(3*8)+(2*7)+(1*6)=199
199 % 10 = 9
So 176688-76-9 is a valid CAS Registry Number.