IUPAC Name: (4Z)-4-[[2-Chloro-5-(trifluoromethyl)phenyl]hydrazinylidene]-N-[2,5-dichloro-4-[[(4E)-4-[[2-chloro-5-(trifluoromethyl)phenyl]hydrazinylidene]-3-oxonaphthalene-2-carbonyl]amino]phenyl]-3-oxonaphthalene-2-carboxamide
Molecular Formula: C₄₂H₂₂Cl₄F₆N₆O₄
Molecular Weight: 930.46 g/mol
Canonical SMILES: N(\c1c(c(C(=O)Nc2cc(c(cc2Cl)NC(c2c(c(c3c(c2)cccc3)\N=N\c2c(Cl)ccc(C(F)(F)F)c2)O)=O)Cl)cc2ccccc12)O)=N\c1cc(ccc1Cl)C(F)(F)F
InChI: InChI=1/C42H22Cl4F6N6O4/c43-27-11-9-21(41(47,48)49)15-33(27)55-57-35-23-7-3-1-5-19(23)13-25(37(35)59)39(61)53-31-17-30(46)32(18-29(31)45)54-40(62)26-14-20-6-2-4-8-24(20)36(38(26)60)58-56-34-16-22(42(50,51)52)10-12-28(34)44/h1-18,59-60H,(H,53,61)(H,54,62)/b57-55+,58-56+
EINECS: 257-776-0
Product Categories: Organics
XLogP3-AA: 11.7
H-Bond Donor: 4
H-Bond Acceptor: 14
Index of Refraction: 1.664 
Molar Refractivity: 218.69 cm³ 
Molar Volume: 589.2 cm³ 
Polarizability: 86.69×10^-24 cm³ 
Surface Tension: 51.6 dyne/cm 
Density of Pigment Red 242 (CAS NO.52238-92-3): 1.57 g/cm³

  Pigment Red 242 (CAS NO.52238-92-3), its Synonyms are 2-Naphthalenecarboxamide, N,N'-(2,5-dichloro-1,4-phenylene)bis(4-((2-chloro-5-(trifluoromethyl)phenyl)azo)-3-hydroxy- ; 2-Naphthalenecarboxamide, N,N'-(2,5-dichloro-1,4-phenylene)bis(4-(2-(2-chloro-5-(trifluoromethyl)phenyl)diazenyl)-3-hydroxy- ; N,N'-(2,5-Dichloro-1,4-phenylene)bis(4-((2-chloro-5-(trifluoromethyl)phenyl)azo)-3-hydroxynaphthalene-2-carboxamide) .