1187172-83-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1187172-83-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,7,1,7 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1187172-83:
(9*1)+(8*1)+(7*8)+(6*7)+(5*1)+(4*7)+(3*2)+(2*8)+(1*3)=173
173 % 10 = 3
So 1187172-83-3 is a valid CAS Registry Number.