2-Nitroisophthalic acid
Also known as: 2-Nitro-1,3-benzenedicarboxylic acid, 2-nitrobenzene-1,3-dicarboxylic acid, 1,3-Benzenedicarboxylic acid, 2-nitro-, 2-NITRO-ISOPHTHALIC ACID, 2-NITRO-ISOPHTHALIC ACID2-NITROPHENYL-1,3-DICARBOXYLIC ACID
2-Nitroisophthalic acid (CAS 21161-11-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H5NO6 and a molecular weight of 211.128 g/mol. Key properties include a melting point of 314ºC, a boiling point of 473.7±40.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 214.0±15.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21161-11-5
- Jingsj CID
- J-1370407-9
- Molecular Formula
- C8H5NO6
- Molecular Weight
- 211.128 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 314ºC |
|---|---|
| Boiling Point | 473.7±40.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 214.0±15.8 °C |
| Exact Mass | 211.011688 |
| PSA | 120.42000 |
| LogP | 1.25 |
| Vapor Pressure | 0.0±1.2 mmHg at 25°C |
| Refractive Index | 1.660 |
Customs & Trade Information
| HS Code | 2917399090 |
|---|---|
| Summary | 2917399090 aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。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 2-Nitroisophthalic acid?
The CAS number of 2-Nitroisophthalic acid is 21161-11-5.
What are the molecular formula and molecular weight of 2-Nitroisophthalic acid?
2-Nitroisophthalic acid has molecular formula C8H5NO6 and molecular weight 211.128 g/mol.
What are the upstream and downstream products of 2-Nitroisophthalic acid?
For 2-Nitroisophthalic acid, Upstream Products: 2,6-Dimethyl-1-nitrobenzene, 3-Methyl-2-nitrobenzoic acid, 1,3-Dimethyl-5-nitrobenzene; Downstream Products: Dimethyl 2-nitroisophthalate, 2-Aminoisophthalic acid, 2-Iodoisophthalic 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. "2-Nitroisophthalic acid (CAS 21161-11-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1370407-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.