1309933-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1309933-98-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,9,9,3 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1309933-98:
(9*1)+(8*3)+(7*0)+(6*9)+(5*9)+(4*3)+(3*3)+(2*9)+(1*8)=179
179 % 10 = 9
So 1309933-98-9 is a valid CAS Registry Number.