1171988-58-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1171988-58-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,1,9,8 and 8 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1171988-58:
(9*1)+(8*1)+(7*7)+(6*1)+(5*9)+(4*8)+(3*8)+(2*5)+(1*8)=191
191 % 10 = 1
So 1171988-58-1 is a valid CAS Registry Number.