Product Name

  • Name

    Dibutyl butanephosphonate

  • EINECS 201-119-2
  • CAS No. 78-46-6
  • Article Data28
  • CAS DataBase
  • Density 0.946
  • Solubility 0.5g/L(25 oC)
  • Melting Point
  • Formula C12H27 O3 P
  • Boiling Point 283 ºC
  • Molecular Weight 250.318
  • Flash Point >110 ºC
  • Transport Information
  • Appearance
  • Safety Poison by intraperitoneal and intravenous routes. Combustible when exposed to heat or flame. It can react vigorously with oxidizing materials. To fight fire, use foam, CO2, or dry chemical. When heated to decomposition it emits toxic fumes of POx.
  • Risk Codes
  • Molecular Structure Molecular Structure of 78-46-6 (Dibutyl butanephosphonate)
  • Hazard Symbols
  • Synonyms Phosphonicacid, butyl-, dibutyl ester (6CI,8CI,9CI); Albrite DBBP; DBBP;Dibutoxybutylphosphine oxide; Dibutyl butanephosphonate; Dibutylbutylphosphonate; NSC 2666; TC 44; Tributylphosphonate
  • PSA 45.34000
  • LogP 4.61300

Dibutyl butanephosphonate Chemical Properties

Product Name: Dibutyl butylphosphonate (CAS NO.78-46-6)


Molecular Formula: C12H27O3P
Molecular Weight: 250.31g/mol
Mol File: 78-46-6.mol
Boiling point: 316.9 °C at 760 mmHg
Flash Point: 159.3 °C
Density: 0.946 g/mL at 25 °C(lit.)
Refractive index: n20/D 1.432(lit.)
Surface Tension: 30.8 dyne/cm
Enthalpy of Vaporization:  53.61 kJ/mol 
Vapour Pressure: 0.000739 mmHg at 25°C
XLogP3-AA: 3.2
H-Bond Donor: 0
H-Bond Acceptor: 3
Structure Descriptors of Dibutyl butylphosphonate (CAS NO.78-46-6):
  IUPAC Name: 1-[butoxy(butyl)phosphoryl]oxybutane
  Canonical SMILES: CCCCOP(=O)(CCCC)OCCCC
  InChI: InChI=1S/C12H27O3P/c1-4-7-10-14-16(13,12-9-6-3)15-11-8-5-2/h4-12H2,1-3H3 
  InChIKey: JPGXOMADPRULAC-UHFFFAOYSA-N
Product Categories: C-C Bond Formation; Horner-Wadsworth-Emmons Reagents; Olefination; Horner-Wadsworth-Emmons ReagentsAnalytical/Chromatography; Ion Sensor Materials; Plasticizer for ISE

Dibutyl butanephosphonate Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intravenous 56mg/kg (56mg/kg)   U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. Vol. NX#03463,
mouse LDLo intraperitoneal 125mg/kg (125mg/kg) BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX) "Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. Vol. 7, Pg. 789, 1955.

Dibutyl butanephosphonate Consensus Reports

Reported in EPA TSCA Inventory.

Dibutyl butanephosphonate Safety Profile

Poison by intraperitoneal and intravenous routes. Combustible when exposed to heat or flame. It can react vigorously with oxidizing materials. To fight fire, use foam, CO2, or dry chemical. When heated to decomposition it emits toxic fumes of POx.

Dibutyl butanephosphonate Specification

 Dibutyl butylphosphonate ,its CAS NO. is 78-46-6,the synonyms is BRN 1777999 ; Di-n-butyl n-butylphosphonate ; Dibutyl butanephosphonate ; EINECS 201-119-2 ; HSDB 2563 ; NSC 2666 ; Phosphonic acid, butyl-, dibutyl ester ; TC 44 ; Phosphonic acid, P-butyl-, dibutyl ester .

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