239-98-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 239-98-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,3 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 239-98:
(5*2)+(4*3)+(3*9)+(2*9)+(1*8)=75
75 % 10 = 5
So 239-98-5 is a valid CAS Registry Number.
InChI:InChI=1/C26H16/c1-2-7-19-12-22-15-24-16-26-20(10-9-17-5-3-4-8-25(17)26)13-23(24)14-21(22)11-18(19)6-1/h1-16H