91874-98-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91874-98-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,8,7 and 4 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 91874-98:
(7*9)+(6*1)+(5*8)+(4*7)+(3*4)+(2*9)+(1*8)=175
175 % 10 = 5
So 91874-98-5 is a valid CAS Registry Number.
InChI:InChI=1/C17H11NO2S/c19-13-7-5-11(9-14(13)20)17-18-16-12-4-2-1-3-10(12)6-8-15(16)21-17/h1-9,18,20H/b17-11-