78311-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78311-71-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,3,1 and 1 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 78311-71:
(7*7)+(6*8)+(5*3)+(4*1)+(3*1)+(2*7)+(1*1)=134
134 % 10 = 4
So 78311-71-4 is a valid CAS Registry Number.
InChI:InChI=1/C21H20N8O3S2/c1-15(30)24-18-4-2-16(3-5-18)14-23-17-6-8-19(9-7-17)34(31,32)29(21-22-11-13-33-21)12-10-20-25-27-28-26-20/h2-9,11,13-14H,10,12H2,1H3,(H,24,30)(H,25,26,27,28)/b23-14+