39994-56-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39994-56-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,9,9 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 39994-56:
(7*3)+(6*9)+(5*9)+(4*9)+(3*4)+(2*5)+(1*6)=184
184 % 10 = 4
So 39994-56-4 is a valid CAS Registry Number.