1333331-55-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1333331-55-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,3,3,3 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1333331-55:
(9*1)+(8*3)+(7*3)+(6*3)+(5*3)+(4*3)+(3*1)+(2*5)+(1*5)=117
117 % 10 = 7
So 1333331-55-7 is a valid CAS Registry Number.