1171875-22-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1171875-22-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,1,8,7 and 5 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1171875-22:
(9*1)+(8*1)+(7*7)+(6*1)+(5*8)+(4*7)+(3*5)+(2*2)+(1*2)=161
161 % 10 = 1
So 1171875-22-1 is a valid CAS Registry Number.