1222989-84-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1222989-84-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,2,9,8 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1222989-84:
(9*1)+(8*2)+(7*2)+(6*2)+(5*9)+(4*8)+(3*9)+(2*8)+(1*4)=175
175 % 10 = 5
So 1222989-84-5 is a valid CAS Registry Number.