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Substance Name: Triphenylphosphine oxide
RN: 791-28-6
UNII: Z69161FKI3
InChIKey: FIQMHBFVRAXMOP-UHFFFAOYSA-N

Note

  • Used in the extraction, separation & spectrophotometric determination of cadmium & mercury in environmental samples.

Molecular Formula

  • C18-H15-O-P

Molecular Weight

  • 278.289
 

Classification Code

  • Drug / Therapeutic Agent
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Names and Synonyms

Name of Substance

  • Triphenylphosphine oxide

Synonyms

  • EC 212-338-8
  • EINECS 212-338-8
  • NSC 398
  • Triphenyl phosphine oxide
  • Triphenyl phosphorus oxide
  • Triphenylphosphine oxide
  • UNII-Z69161FKI3

Systematic Names

  • Phosphine oxide, triphenyl-
  • Triphenylphosphine oxide

Registry Numbers

CAS Registry Number

  • 791-28-6

FDA UNII

  • Z69161FKI3

Other Registry Number

  • 47027-44-1

System Generated Number

  • 0000791286

Structure Descriptors

InChI

1S/C18H15OP/c19-20(16-10-4-1-5-11-16,17-12-6-2-7-13-17)18-14-8-3-9-15-18/h1-15H

InChIKey

FIQMHBFVRAXMOP-UHFFFAOYSA-N

Smiles

P(c1ccccc1)(c1ccccc1)(c1ccccc1)=O

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
chicken LD50 oral > 5gm/kg (5000mg/kg)   National Technical Information Service. Vol. OTS0570648,
dog LDLo oral 500mg/kg (500mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: AGGRESSION

LUNGS, THORAX, OR RESPIRATION: DYSPNEA
National Technical Information Service. Vol. OTS0570648,
mouse LD50 oral 1380mg/kg (1380mg/kg)   Khimiko-Farmatsevticheskii Zhurnal. Chemical Pharmaceutical Journal. For English translation, see PCJOAU. Vol. 24(4), Pg. 22, 1990.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 156.5 deg C   EXP
Boiling Point > 360 deg C   EXP
log P (octanol-water) 2.83 (none)   EXP
Water Solubility 62.8 mg/L 25 EST
Henry's Law Constant 5.26E-10 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 5.85E-12 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.