17181-26-9

Basic information

• Product Name: octadecyl hydrogen phthalate
• Synonyms: octadecyl hydrogen phthalate;Phthalic acid 1-octadecyl ester;Phthalic acid hydrogen 1-octadecyl ester;Einecs 241-227-7
• CAS NO: 17181-26-9
• Molecular Formula: C₂₆H₄₂O₄
• Molecular Weight: 418.60928
• EINECS: 241-227-7
• Mol File: 17181-26-9.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 536.3°Cat760mmHg
• Flash Point: 168.2°C
• Appearance: /
• Density: 0.995g/cm³
• Vapor Pressure: 2.47E-12mmHg at 25°C
• Refractive Index: 1.5
• CAS DataBase Reference: octadecyl hydrogen phthalate(CAS DataBase Reference)
• NIST Chemistry Reference: octadecyl hydrogen phthalate(17181-26-9)
• EPA Substance Registry System: octadecyl hydrogen phthalate(17181-26-9)

Safety Data

• Hazardous Substances Data: 17181-26-9(Hazardous Substances Data)

Usage

InChI:InChI=1/C26H42O4/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-19-22-30-26(29)24-21-18-17-20-23(24)25(27)28/h17-18,20-21H,2-16,19,22H2,1H3,(H,27,28)

Upstream product

• 85-44-9 phthalic anhydride 
• 112-92-5 1-octadecanol 

Downstream Products

• 95241-39-7 Ethoxyethyl-stearyl-phthalat 
• 95241-38-6 Phthalsaeurestearylesterchlorid 

Relevant articles and documents

Spectroscopic study on the photophysical properties of novel lanthanide complexes with long chain mono-L phthalate (L = hexadecyl, octadecyl and eicosyl)

Ortho-phthalic anhydride was modified with long chain alcohol (1-hexadecanol, 1-octadecanol and 1-eicosanol) to their corresponding mono-L phthalate (L = hexadecyl, octadecyl and eicosyl), i.e. monohexadecyl phthalate (16-Phth), monooctadecyl phthalate (18-Phth), and monoeicosyl phthalate (20-Phth), respectively. Nine novel lanthanide (Eu3+, Tb3+ and Dy3+) complexes with these three mono-L phthalate ligands were synthesized and characterized by elemental analysis and IR spectra. The photophysical properties of these complexes were studied in detail with various spectroscopes such as ultraviolet-visible absorption spectra, low temperature phosphorescence spectra and fluorescent spectra. The ultraviolet-visible absorption spectra show some band shifts with the different chain-length of phthalate monoester and homologous lanthanide complexes. From the low temperature phosphorescent emission, the triplet state energies for these three ligands were determined to be around 22,650 cm-1 (16-Phth), 23,095 cm-1 (18-Phth) and 22,400 cm-1 (20-Phth), respectively, suggesting they are suitable for the sensitization of the luminescence of Eu3+, Tb3+ and Dy3+. The fluorescence excitation and emission spectra for these lanthanides complexes of the three ligands take agreement with the above predict from energy match.