Product Name

  • Name

    dioctyl terephthalate

  • EINECS 225-091-6
  • CAS No. 4654-26-6
  • Article Data13
  • CAS DataBase
  • Density 0.985 g/cm3
  • Solubility
  • Melting Point 41-42 °C
  • Formula C24H38O4
  • Boiling Point 423.216 °C at 760 mmHg
  • Molecular Weight 390.563
  • Flash Point 226.171 °C
  • Transport Information
  • Appearance
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 4654-26-6 (dioctyl terephthalate)
  • Hazard Symbols
  • Synonyms Dioctyl benzene-1,4-dicarboxylate;Terephthalic acid, dioctyl ester (6CI,7CI,8CI);Di-n-octylterephthalate;
  • PSA 52.60000
  • LogP 6.72120

Synthetic route

octanol
111-87-5

octanol

terephthaloyl chloride
100-20-9

terephthaloyl chloride

dioctyl terephthalate
4654-26-6

dioctyl terephthalate

Conditions
ConditionsYield
With dmap; triethylamine In toluene at 100℃; for 48h;63%
octanol
111-87-5

octanol

terephthalic acid
100-21-0

terephthalic acid

dioctyl terephthalate
4654-26-6

dioctyl terephthalate

Conditions
ConditionsYield
With silica gel; zinc trifluoromethanesulfonate for 0.1h; microwave irradiation;62%
octanol
111-87-5

octanol

diethyl terephthalate
636-09-9

diethyl terephthalate

dioctyl terephthalate
4654-26-6

dioctyl terephthalate

Conditions
ConditionsYield
With sodium
1-bromo-octane
111-83-1

1-bromo-octane

terephthalic acid
100-21-0

terephthalic acid

dioctyl terephthalate
4654-26-6

dioctyl terephthalate

Conditions
ConditionsYield
With potassium hydroxide; tetrabutylammomium bromide 1.) 60 deg C, 0.1 Torr, 6 h, 2.) 85 deg C, 80 h; Yield given. Multistep reaction;
With tetrabutylammomium bromide; potassium carbonate at 227℃; for 0.116667h; Irradiation;92 % Chromat.
octanol
111-87-5

octanol

diethyl terephthalate
636-09-9

diethyl terephthalate

A

dioctyl terephthalate
4654-26-6

dioctyl terephthalate

B

ethyl octyl terephthalate

ethyl octyl terephthalate

Conditions
ConditionsYield
With 4 A molecular sieve; Mucor miehei lipase In di-isopropyl ether at 60℃; for 240h;A 66 % Chromat.
B 30 % Chromat.
With 4 A molecular sieve; Mucor miehei lipase In di-isopropyl ether at 60℃;
dioctyl terephthalate
4654-26-6

dioctyl terephthalate

terephthalic acid monooctyl ester
15786-00-2

terephthalic acid monooctyl ester

Conditions
ConditionsYield
With potassium hydroxide

1,4-Benzenedicarboxylic acid, dioctyl ester Specification

The 1,4-Benzenedicarboxylic acid, dioctyl ester, with the CAS registry number 4654-26-6, is also known as Dioctyl terephthalate. Its EINECS registry number is 225-091-6. This chemical's molecular formula is C24H38O4 and molecular weight is 390.56. What's more, its IUPAC name is called Dioctyl benzene-1,4-dicarboxylate.

Physical properties about 1,4-Benzenedicarboxylic acid, dioctyl ester are: (1)ACD/LogP: 9.506; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 9.51; (4)ACD/LogD (pH 7.4): 9.51; (5)ACD/BCF (pH 5.5): 1000000.00; (6)ACD/BCF (pH 7.4): 1000000.00; (7)ACD/KOC (pH 5.5): 3535683.00; (8)ACD/KOC (pH 7.4): 3535683.00; (9)#H bond acceptors: 4; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 18; (12)Polar Surface Area: 52.6 Å2; (13)Index of Refraction: 1.49; (14)Molar Refractivity: 114.659 cm3; (15)Molar Volume: 396.313 cm3; (16)Polarizability: 45.455×10-24cm3; (17)Surface Tension: 36.476001739502 dyne/cm; (18)Density: 0.985 g/cm3; (19)Flash Point: 226.171 °C; (20)Enthalpy of Vaporization: 67.751 kJ/mol; (21)Boiling Point: 423.216 °C at 760 mmHg; (22)Vapour Pressure: 0 mmHg at 25 °C.

You can still convert the following datas into molecular structure:
(1) SMILES: O=C(OCCCCCCCC)c1ccc(C(=O)OCCCCCCCC)cc1
(2) InChI: InChI=1S/C24H38O4/c1-3-5-7-9-11-13-19-27-23(25)21-15-17-22(18-16-21)24(26)28-20-14-12-10-8-6-4-2/h15-18H,3-14,19-20H2,1-2H3
(3) InChIKey: OEIWPNWSDYFMIL-UHFFFAOYSA-N

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD intraperitoneal > 3200mg/kg (3200mg/kg)   Food and Chemical Toxicology. Vol. 33, Pg. 971, 1995.
mouse LD50 oral > 3200mg/kg (3200mg/kg)   Food and Chemical Toxicology. Vol. 33, Pg. 971, 1995.
rat LD intraperitoneal > 3200mg/kg (3200mg/kg)   Food and Chemical Toxicology. Vol. 33, Pg. 971, 1995.
rat LD50 oral > 5gm/kg (5000mg/kg)   Food and Chemical Toxicology. Vol. 33, Pg. 971, 1995.
 

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