2988-97-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2988-97-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,9,8 and 8 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 2988-97:
(6*2)+(5*9)+(4*8)+(3*8)+(2*9)+(1*7)=138
138 % 10 = 8
So 2988-97-8 is a valid CAS Registry Number.