Date published: 2026-3-6

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Dipentyl phthalate (CAS 131-18-0)

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Alternate Names:
Di-n-pentyl phthalate
CAS Number:
131-18-0
Purity:
≥98%
Molecular Weight:
306.40
Molecular Formula:
C18H26O4
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Dipentyl phthalate, the dipentyl ester of benzene-1,2-dicarboxylic acid, is categorized as a phthalate ester and functions as a plasticizer. This compound is classified as a diester and is derived from pentan-1-ol. Dipentyl phthalate manifests as a clear colorless to light yellow liquid, possessing an almost negligible odor. Notably, it exhibits the property of floating on water.


Dipentyl phthalate (CAS 131-18-0) References

  1. Accelerated degradation of dipentyl phthalate by Fusarium oxysporum f. sp. pisi cutinase and toxicity evaluation of its degradation products using bioluminescent bacteria.  |  Ahn, JY., et al. 2006. Curr Microbiol. 52: 340-4. PMID: 16586026
  2. A mixture of five phthalate esters inhibits fetal testicular testosterone production in the sprague-dawley rat in a cumulative, dose-additive manner.  |  Howdeshell, KL., et al. 2008. Toxicol Sci. 105: 153-65. PMID: 18411233
  3. Hazard to the developing male reproductive system from cumulative exposure to phthalate esters--dibutyl phthalate, diisobutyl phthalate, butylbenzyl phthalate, diethylhexyl phthalate, dipentyl phthalate, and diisononyl phthalate.  |  Benson, R. 2009. Regul Toxicol Pharmacol. 53: 90-101. PMID: 19110024
  4. Dipentyl phthalate dosing during sexual differentiation disrupts fetal testis function and postnatal development of the male Sprague-Dawley rat with greater relative potency than other phthalates.  |  Hannas, BR., et al. 2011. Toxicol Sci. 120: 184-93. PMID: 21177253
  5. Simvastatin and dipentyl phthalate lower ex vivo testicular testosterone production and exhibit additive effects on testicular testosterone and gene expression via distinct mechanistic pathways in the fetal rat.  |  Beverly, BE., et al. 2014. Toxicol Sci. 141: 524-37. PMID: 25055962
  6. Solid-phase extraction based on chloromethylated polystyrene magnetic nanospheres followed by gas chromatography with mass spectrometry to determine phthalate esters in beverages.  |  Cao, X., et al. 2014. J Sep Sci. 37: 3677-83. PMID: 25315517
  7. Establishing the 'Biological Relevance' of Dipentyl Phthalate Reductions in Fetal Rat Testosterone Production and Plasma and Testis Testosterone Levels.  |  Gray, LE., et al. 2016. Toxicol Sci. 149: 178-91. PMID: 26454885
  8. Disruption of Retinol (Vitamin A) Signaling by Phthalate Esters: SAR and Mechanism Studies.  |  Chen, Y. and Reese, DH. 2016. PLoS One. 11: e0161167. PMID: 27532513
  9. Inhibitory modulation of human estrogen receptor α and β activities by dicyclohexyl phthalate in human breast cancer cell lines.  |  Okazaki, H., et al. 2017. J Toxicol Sci. 42: 417-425. PMID: 28717100
  10. Direct determination of trace phthalate esters in alcoholic spirits by spray-inlet microwave plasma torch ionization tandem mass spectrometry.  |  Miao, M., et al. 2018. J Mass Spectrom. 53: 189-194. PMID: 29277984
  11. In utero exposure to dipentyl phthalate disrupts fetal and adult Leydig cell development.  |  Chen, H., et al. 2021. Toxicol Appl Pharmacol. 419: 115514. PMID: 33798595
  12. Exposure to dipentyl phthalate in utero disrupts the adrenal cortex function of adult male rats by inhibiting SIRT1/PGC-1α and inducing AMPK phosphorylation.  |  Chen, H., et al. 2023. Environ Toxicol. 38: 997-1010. PMID: 36715143
  13. Effect of DI-n-pentyl phthalate treatment on testicular steroidogenic enzymes and cytochrome P-450 in the rat.  |  Foster, PM., et al. 1983. Toxicol Lett. 15: 265-71. PMID: 6829050

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Dipentyl phthalate, 1 g

sc-257372
1 g
$144.00