228699-88-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 228699-88-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,8,6,9 and 9 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 228699-88:
(8*2)+(7*2)+(6*8)+(5*6)+(4*9)+(3*9)+(2*8)+(1*8)=195
195 % 10 = 5
So 228699-88-5 is a valid CAS Registry Number.