82903-05-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82903-05-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,9,0 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 82903-05:
(7*8)+(6*2)+(5*9)+(4*0)+(3*3)+(2*0)+(1*5)=127
127 % 10 = 7
So 82903-05-7 is a valid CAS Registry Number.