99987-26-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99987-26-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,9,8 and 7 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 99987-26:
(7*9)+(6*9)+(5*9)+(4*8)+(3*7)+(2*2)+(1*6)=225
225 % 10 = 5
So 99987-26-5 is a valid CAS Registry Number.