Dibutyl phthalate

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 Edit this at Wikidata
EC Number
  • 201-557-4
262569
KEGG
RTECS number
  • TI0875000
UNII
  • InChI=1S/C16H22O4/c1-3-5-11-19-15(17)13-9-7-8-10-14(13)16(18)20-12-6-4-2/h7-10H,3-6,11-12H2,1-2H3 checkY
    Key: DOIRQSBPFJWKBE-UHFFFAOYSA-N ☒N
  • CCCCOC(=O)c1ccccc1C(=O)OCCCC
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)[1]
-175.1·10−6 cm3/mol
Pharmacology
P03BX03 (WHO)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 N), Harmful (Xi)
GHS labelling:
GHS08: Health hazardGHS09: Environmental hazard
Danger
H360Df, H400
P201, P202, P273, P281, P308+P313, P391, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
1
0
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):
5289 mg/kg (oral, mouse)
8000 mg/kg (oral, rat)
10,000 mg/kg (oral, guinea pig)[2]
4250 mg/m3 (rat)
25000 mg/m3 (mouse, 2 hr)[2]
NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 5 mg/m3[1]
REL (Recommended)
 TWA 5 mg/m3[1]
IDLH (Immediate danger)
 4000 mg/m3[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Dibutyl phthalate (DBP) is an organic compound 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.[3]

  1. ^ a b c d NIOSH Pocket Guide to Chemical Hazards. "#0187". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ a b "Dibutyl Phthalate". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
  3. ^ Peter M. Lorz, Friedrich K. Towae, Walter Enke, Rudolf Jäckh, Naresh Bhargava, Wolfgang Hillesheim "Phthalic Acid and Derivatives" in Ullmann's Encyclopedia of Industrial Chemistry, 2007, Wiley-VCH, Weinheim. doi:10.1002/14356007.a20_181.pub2