Methyl hydrogen isophthalate
Also known as: Mono-methyl isophthalate, Isophthalic acid monomethyl ester, 3-(Methoxycarbonyl)benzoic acid, Monomethyl isophthalate, Methyl m-phthalate, 1,3-Benzenedicarboxylic acid, monomethyl ester, 3-methoxycarbonylbenzoic acid, benzene-1,3-dicarboxylic acid monomethyl ester, Isophthalic acid methyl ester
Methyl hydrogen isophthalate (CAS 1877-71-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H8O4 and a molecular weight of 180.157 g/mol. Key properties include a melting point of 194-196 °C(lit.), a boiling point of 339.3±25.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 139.6±16.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1877-71-0
- Jingsj CID
- J-4099-3
- Molecular Formula
- C9H8O4
- Molecular Weight
- 180.157 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 194-196 °C(lit.) |
|---|---|
| Boiling Point | 339.3±25.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 139.6±16.7 °C |
| Exact Mass | 180.042252 |
| PSA | 63.60000 |
| LogP | 1.83 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.556 |
Customs & Trade Information
| HS Code | 2918990090 |
|---|---|
| Summary | 2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Methyl hydrogen isophthalate?
The CAS number of Methyl hydrogen isophthalate is 1877-71-0.
What are the molecular formula and molecular weight of Methyl hydrogen isophthalate?
Methyl hydrogen isophthalate has molecular formula C9H8O4 and molecular weight 180.157 g/mol.
What are the upstream and downstream products of Methyl hydrogen isophthalate?
For Methyl hydrogen isophthalate, Upstream Products: Dimethyl isophthalate, Methyl 3-bromobenzoate, Carbon dioxide; Downstream Products: Methyl 3-isocyanatobenzoate, Methyl 3-(chlorocarbonyl)benzoate, 3-(Hydroxymethyl)benzoic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methyl hydrogen isophthalate (CAS 1877-71-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4099-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.