4921-50-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4921-50-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,2 and 1 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4921-50:
(6*4)+(5*9)+(4*2)+(3*1)+(2*5)+(1*0)=90
90 % 10 = 0
So 4921-50-0 is a valid CAS Registry Number.