108440-59-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108440-59-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,4,4 and 0 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 108440-59:
(8*1)+(7*0)+(6*8)+(5*4)+(4*4)+(3*0)+(2*5)+(1*9)=111
111 % 10 = 1
So 108440-59-1 is a valid CAS Registry Number.
InChI:InChI=1/C55H36N4O8/c60-52(61)36-14-6-32(7-15-36)48-40-22-23-41(56-40)49(33-8-16-37(17-9-33)53(62)63)43-25-27-45(58-43)51(35-12-20-39(21-13-35)55(66)67)47-29-28-46(59(47)30-31-4-2-1-3-5-31)50(44-26-24-42(48)57-44)34-10-18-38(19-11-34)54(64)65/h1-29,56H,30H2,(H,60,61)(H,62,63)(H,64,65)(H,66,67)/b48-40-,48-42-,49-41-,49-43-,50-44-,50-46-,51-45-,51-47-