Dimethyl phthalate
Also known as: Phthalic acid dimethyl ester, Dimethyl 1,2-benzenedicarboxylate, 1,2-Benzenedicarboxylic acid dimethyl ester, Dimethyl benzene-1,2-dicarboxylate, Dimethyl o-phthalate, Avolin, Methyl phthalate, NTM, MIPAX
Dimethyl phthalate (CAS 131-11-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H10O4 and a molecular weight of 194.184 g/mol. Key properties include a melting point of 2 °C(lit.), a boiling point of 282.7±8.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 146.1±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 131-11-3
- Jingsj CID
- J-1991584-5
- Molecular Formula
- C10H10O4
- Molecular Weight
- 194.184 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 2 °C(lit.) |
|---|---|
| Boiling Point | 282.7±8.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 146.1±0.0 °C |
| Exact Mass | 194.057907 |
| PSA | 52.60000 |
| LogP | 1.64 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.515 |
| Additional Property | <0.1 g/100 mL at 20 ºC |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
- H331 — Toxic if inhaled
- H370 — Causes damage to organs
Activity & Biological Data
| Additional Information | [1]. Wang ZG, et al. Impacts of dimethyl phthalate on the bacterial community and functions in black soils. Front Microbiol. 2015 May 5;6:405. |
|---|
Frequently Asked Questions
What is the CAS number of Dimethyl phthalate?
The CAS number of Dimethyl phthalate is 131-11-3.
What are the molecular formula and molecular weight of Dimethyl phthalate?
Dimethyl phthalate has molecular formula C10H10O4 and molecular weight 194.184 g/mol.
Is Dimethyl phthalate hazardous?
Dimethyl phthalate has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.
What are the upstream and downstream products of Dimethyl phthalate?
For Dimethyl phthalate, Upstream Products: Methanol, 1,2-Dibromobenzene, Diethyl phthalate; Downstream Products: Thalidomide, Dimethyl trans-1,2-cyclohexanedicarboxylate, Methyl 4-formylbenzoate dimethyl acetal.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Dimethyl phthalate (CAS 131-11-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991584-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.