518-51-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 518-51-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,1 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 518-51:
(5*5)+(4*1)+(3*8)+(2*5)+(1*1)=64
64 % 10 = 4
So 518-51-4 is a valid CAS Registry Number.
InChI:InChI=1/C20H14O4.2Na/c21-15-9-5-13(6-10-15)19(14-7-11-16(22)12-8-14)17-3-1-2-4-18(17)20(23)24;;/h1-12,21H,(H,23,24);;/q;2*+1/p-2
518-51-4Relevant articles and documents
CHLORINE-CONTAINING DIHYDROXY COMPOUNDS
Beev, A. A.,Mikitaev, A. K.,Afaunova, Z. I.,Korshak, V. V.
, p. 1953 - 1956 (2007/10/02)
The conditions (process time, concentration, and temperature) were determined for the synthesis of a series of dihydroxy compounds based on hexachlorobenzene, phenolphthalein, 9,9-bis(hydroxyphenyl)fluorene, di(4-hydroxyphenyl)methane, and 2,2-di(4-hydroxyphenyl)propane.The products are of interest as intermediates for the production of polymers with increased fire resistance.