309926-98-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 309926-98-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,9,9,2 and 6 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 309926-98:
(8*3)+(7*0)+(6*9)+(5*9)+(4*2)+(3*6)+(2*9)+(1*8)=175
175 % 10 = 5
So 309926-98-5 is a valid CAS Registry Number.