1940-55-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1940-55-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,4 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1940-55:
(6*1)+(5*9)+(4*4)+(3*0)+(2*5)+(1*5)=82
82 % 10 = 2
So 1940-55-2 is a valid CAS Registry Number.