2377-31-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2377-31-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,3,7 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2377-31:
(6*2)+(5*3)+(4*7)+(3*7)+(2*3)+(1*1)=83
83 % 10 = 3
So 2377-31-3 is a valid CAS Registry Number.