6290-99-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6290-99-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,2,9 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 6290-99:
(6*6)+(5*2)+(4*9)+(3*0)+(2*9)+(1*9)=109
109 % 10 = 9
So 6290-99-9 is a valid CAS Registry Number.