1229985-04-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1229985-04-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,9,9,8 and 5 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1229985-04:
(9*1)+(8*2)+(7*2)+(6*9)+(5*9)+(4*8)+(3*5)+(2*0)+(1*4)=189
189 % 10 = 9
So 1229985-04-9 is a valid CAS Registry Number.