1289559-55-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1289559-55-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,9,5,5 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1289559-55:
(9*1)+(8*2)+(7*8)+(6*9)+(5*5)+(4*5)+(3*9)+(2*5)+(1*5)=222
222 % 10 = 2
So 1289559-55-2 is a valid CAS Registry Number.