Dibutyl phthalate
| Names | |
|---|---|
| Preferred IUPAC name
Dibutyl benzene-1,2-dicarboxylate | |
| Other names
Dibutyl phthalate Di-n-butyl phthalate Butyl phthalate, dibasic (2:1) n-Butyl phthalate 1,2-Benzenedicarboxylic acid dibutyl ester o-Benzenedicarboxylic acid dibutyl ester DBP Palatinol C Elaol Dibutyl 1,2-benzene-dicarboxylate | |
| Identifiers | |
3D model (JSmol) |
|
| 1914064 | |
| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| DrugBank | |
| ECHA InfoCard | 100.001.416 |
| EC Number |
|
| 262569 | |
| KEGG | |
PubChem CID |
|
| RTECS number |
|
| UNII | |
CompTox Dashboard (EPA) |
|
| |
| |
| Properties | |
| C16H22O4 | |
| Molar mass | 278.348 g·mol−1 |
| Appearance | Colorless liquid |
| Odor | aromatic |
| Density | 1.05 g/cm3 at 20 °C |
| Melting point | −35 °C (−31 °F; 238 K) |
| Boiling point | 340 °C (644 °F; 613 K) |
| 13 mg/L (25 °C) | |
| log P | 4.72 |
| Vapor pressure | 0.00007 mmHg (20 °C) |
| −175.1·10−6 cm3/mol | |
| Pharmacology | |
| P03BX03 (WHO) | |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards |
N), Harmful (Xi) |
| GHS labelling: | |
| Danger | |
| H360Df, H400 | |
| P201, P202, P273, P281, P308+P313, P391, P405, P501 | |
| NFPA 704 (fire diamond) | |
| Flash point | 157 °C (315 °F; 430 K) (closed cup) |
| 402 °C (756 °F; 675 K) | |
| Explosive limits | 0.5 - 3.5% |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
5289 mg/kg (oral, mouse) 8000 mg/kg (oral, rat) 10,000 mg/kg (oral, guinea pig) |
LC50 (median concentration) |
4250 mg/m3 (rat) 25000 mg/m3 (mouse, 2 hr) |
| NIOSH (US health exposure limits): | |
PEL (Permissible) |
TWA 5 mg/m3 |
REL (Recommended) |
TWA 5 mg/m3 |
IDLH (Immediate danger) |
4000 mg/m3 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Dibutyl phthalate (DBP) is an organic compound of phthalate which is commonly used as a plasticizer because of its low toxicity and wide liquid range. With the chemical formula C6H4(CO2C4H9)2, it is a colorless oil, although impurities often render commercial samples yellow. Dibutyl phthalate has high dielectric constant.