5432-31-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5432-31-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,4,3 and 2 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5432-31:
(6*5)+(5*4)+(4*3)+(3*2)+(2*3)+(1*1)=75
75 % 10 = 5
So 5432-31-5 is a valid CAS Registry Number.
InChI:InChI=1/C24H20N4O7S2/c1-14-11-16(25-26-21-10-8-17(12-15(21)2)36(30,31)32)7-9-20(14)27-28-22-13-23(37(33,34)35)18-5-3-4-6-19(18)24(22)29/h3-13,27H,1-2H3,(H,30,31,32)(H,33,34,35)/b26-25+,28-22+