309930-58-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 309930-58-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,9,9,3 and 0 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 309930-58:
(8*3)+(7*0)+(6*9)+(5*9)+(4*3)+(3*0)+(2*5)+(1*8)=153
153 % 10 = 3
So 309930-58-3 is a valid CAS Registry Number.