1158749-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1158749-81-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,5,8,7,4 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1158749-81:
(9*1)+(8*1)+(7*5)+(6*8)+(5*7)+(4*4)+(3*9)+(2*8)+(1*1)=195
195 % 10 = 5
So 1158749-81-5 is a valid CAS Registry Number.