6988-74-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6988-74-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,9,8 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 6988-74:
(6*6)+(5*9)+(4*8)+(3*8)+(2*7)+(1*4)=155
155 % 10 = 5
So 6988-74-5 is a valid CAS Registry Number.