67828-18-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67828-18-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,8,2 and 8 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 67828-18:
(7*6)+(6*7)+(5*8)+(4*2)+(3*8)+(2*1)+(1*8)=166
166 % 10 = 6
So 67828-18-6 is a valid CAS Registry Number.
InChI:InChI=1/C20H20N2O10S3/c1-12-9-13(2)18(33(24,25)8-7-32-35(29,30)31)10-16(12)21-22-17-11-19(34(26,27)28)14-5-3-4-6-15(14)20(17)23/h3-6,9-11,21H,7-8H2,1-2H3,(H,26,27,28)(H,29,30,31)/b22-17+