1210980-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1210980-55-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,0,9,8 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1210980-55:
(9*1)+(8*2)+(7*1)+(6*0)+(5*9)+(4*8)+(3*0)+(2*5)+(1*5)=124
124 % 10 = 4
So 1210980-55-4 is a valid CAS Registry Number.