50643-04-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 50643-04-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,6,4 and 3 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 50643-04:
(7*5)+(6*0)+(5*6)+(4*4)+(3*3)+(2*0)+(1*4)=94
94 % 10 = 4
So 50643-04-4 is a valid CAS Registry Number.