6258-99-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6258-99-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,2,5 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 6258-99:
(6*6)+(5*2)+(4*5)+(3*8)+(2*9)+(1*9)=117
117 % 10 = 7
So 6258-99-7 is a valid CAS Registry Number.