5903-77-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5903-77-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,9,0 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 5903-77:
(6*5)+(5*9)+(4*0)+(3*3)+(2*7)+(1*7)=105
105 % 10 = 5
So 5903-77-5 is a valid CAS Registry Number.