Date published: 2026-5-1

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Tributyl phosphate (CAS 126-73-8)

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Alternate Names:
TBP; TBPA
CAS Number:
126-73-8
Purity:
≥98%
Molecular Weight:
266.31
Molecular Formula:
C12H27O4P
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Tributyl phosphate, often abbreviated as TBP, is an organic compound that falls within the class of organophosphates. Its structure consists of a central phosphorus atom bonded to four oxygen atoms. Three of these oxygen atoms are each connected to a butyl group, which is a four-carbon alkyl chain, as indicated by the "Tributyl" part of the name. The fourth oxygen atom is linked to a hydrogen atom, forming a phosphate group. Owing to its structural composition, Tributyl phosphate is a strong and effective solvent, capable of dissolving a wide range of materials. Physically, it is a colorless, viscous liquid at room temperature, with a high boiling point and a mild, characteristic odor. Its properties such as density, boiling point, and solubility are influenced by the polar phosphate group and the nonpolar butyl chains.


Tributyl phosphate (CAS 126-73-8) References

  1. Tributyl phosphate degradation by Serratia odorifera.  |  Berne, C., et al. 2004. Biotechnol Lett. 26: 681-6. PMID: 15200181
  2. Biodegradation of tributyl phosphate using Klebsiella pneumoniae sp. S3.  |  Kulkarni, SV., et al. 2014. Appl Microbiol Biotechnol. 98: 919-29. PMID: 23644771
  3. Biodegradation of tributyl phosphate, an organosphate triester, by aerobic granular biofilms.  |  Nancharaiah, YV., et al. 2015. J Hazard Mater. 283: 705-11. PMID: 25464313
  4. Tributyl Phosphate Aggregation in the Presence of Metals: An Assessment Using Diffusion NMR Spectroscopy.  |  Baldwin, AG., et al. 2016. J Phys Chem B. 120: 12184-12192. PMID: 27805405
  5. Tributyl phosphate assisted hollow-fiber liquid-phase microextraction of short-chain fatty acids in microbial degradation fluid using capillary electrophoresis-contactless coupled conductivity detection.  |  Kong, J., et al. 2018. J Pharm Biomed Anal. 154: 191-197. PMID: 29550708
  6. [Study on occupational exposure limits of tributyl phosphate in the workplace air].  |  Li, L., et al. 2018. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 36: 600-603. PMID: 30317810
  7. ROS changes are responsible for tributyl phosphate (TBP)-induced toxicity in the alga Phaeodactylum tricornutum.  |  Liu, Q., et al. 2019. Aquat Toxicol. 208: 168-178. PMID: 30677712
  8. Elucidating the biodegradation mechanism of tributyl phosphate (TBP) by Sphingomonas sp. isolated from TBP-contaminated mine tailings.  |  Liu, J., et al. 2019. Environ Pollut. 250: 284-291. PMID: 30999205
  9. Comparison of the Toxicity Effects of Tris(1,3-dichloro-2-propyl)phosphate (TDCIPP) with Tributyl Phosphate (TNBP) Reveals the Mechanism of the Apoptosis Pathway in Asian Freshwater Clams (Corbicula fluminea).  |  Yan, S., et al. 2020. Environ Sci Technol. 54: 6850-6858. PMID: 32379427
  10. Responses of the reproduction, population growth and metabolome of the marine rotifer Brachionus plicatilis to tributyl phosphate (TnBP).  |  Zhang, X., et al. 2021. Environ Pollut. 273: 116462. PMID: 33497947
  11. Tributyl phosphate degradation and phosphorus immobilization by MnO2: Reaction condition optimization and mechanism exploration.  |  Tong, W., et al. 2022. J Hazard Mater. 432: 128725. PMID: 35338934
  12. Corrigendum to 'Tributyl phosphate degradation and phosphorus immobilization by MnO2: Reaction condition optimization and mechanism exploration' [J. Hazard. Mater. 432 (2022) 128725].  |  Tong, W., et al. 2022. J Hazard Mater. 436: 129097. PMID: 35598590
  13. Treatment of tributyl phosphate by fenton oxidation: Optimization of parameter, degradation kinetics and pathway.  |  Wang, S., et al. 2023. Chemosphere. 317: 137889. PMID: 36657574

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Tributyl phosphate, 100 ml

sc-251295
100 ml
$51.00