Dipentyl phthalate
邻苯二甲酸二戊酯
Also known as: Di-n-pentyl phthalate, Di-n-Amyl phthalate, Diamyl phthalate, Phthalic acid dipentyl ester, 1,2-Benzenedicarboxylic acid dipentyl ester, Phthalic acid di-n-pentyl ester, Phthalic acid diamyl ester, Phthalic acid bis-pentyl ester, Phthalic acid, bis-n-pentyl ester, Phthalic acid, bis-amyl ester, Phthalic acid, pentyl 2-pentyl ester, Dipentyl benzene-1,2-dicarboxylate, UNII-5DC92K224X, EINECS 205-017-9, MFCD01861607, ai3-00363(usda)
Dipentyl phthalate (CAS 131-18-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H26O4 and a molecular weight of 306.40 g/mol. It is also known as Di-n-pentyl phthalate, Di-n-Amyl phthalate and Diamyl phthalate. Key properties include a melting point of -55ºC, a boiling point of 357.0±10.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 188.8±8.5 °C. It is classified under GHS with signal word Danger and hazard statements H360 — May damage fertility or the unborn child and H400 — Very toxic to aquatic life. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 131-18-0
- Jingsj CID
- J-1991895-2
- Molecular Formula
- C18H26O4
- Chinese Name
- 邻苯二甲酸二戊酯
- Molecular Weight
- 306.40 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -55ºC |
|---|---|
| Boiling Point | 357.0±10.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 188.8±8.5 °C |
| Exact Mass | 306.183105 |
| PSA | 52.60000 |
| LogP | 5.89 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.496 |
GHS Safety & Compliance
- H360 — May damage fertility or the unborn child
- H400 — Very toxic to aquatic life
Activity & Biological Data
| Additional Information | [1]. Haiqiong Chen,et al. Exposure to dipentyl phthalate in utero disrupts the adrenalcortex function of adult male rats by inhibiting SIRT1/PGC-1α and inducing AMPKphosphorylation. Environ Toxicol. 2023 May;38(5):997-1010. [2]. Bethany R Hannas,et al. Dipentyl phthalate dosing during sexual differentiation disruptsfetal testis function and postnatal development of the male Sprague-Dawley ratwith greater relative potency than other phthalates. Toxicol Sci. 2011Mar;120(1):184-93. |
|---|
Customs & Trade Information
| HS Code | 2917349000 |
|---|---|
| Summary | 2917349000 other esters of orthophthalic acid。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Dipentyl phthalate?
The CAS number of Dipentyl phthalate is 131-18-0.
What are the molecular formula and molecular weight of Dipentyl phthalate?
Dipentyl phthalate has molecular formula C18H26O4 and molecular weight 306.40 g/mol.
Is Dipentyl phthalate hazardous?
Dipentyl phthalate has GHS signal word Danger and hazard statements H360 — May damage fertility or the unborn child; H400 — Very toxic to aquatic life.
What are the upstream and downstream products of Dipentyl phthalate?
For Dipentyl phthalate, Upstream Products: Phthalic anhydride, 1-Pentanol, Phthalic acid; Downstream Products: Phthalic anhydride, trans-2-pentene.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Dipentyl phthalate (CAS 131-18-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991895-2 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.