1298029-74-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1298029-74-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,8,0,2 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1298029-74:
(9*1)+(8*2)+(7*9)+(6*8)+(5*0)+(4*2)+(3*9)+(2*7)+(1*4)=189
189 % 10 = 9
So 1298029-74-9 is a valid CAS Registry Number.