5-Aminoisophthalic acid
Also known as: 5-Aminobenzene-1,3-dicarboxylic acid, 5-Amino-1,3-benzenedicarboxylic acid, 5-Amino-1,3-isophthalic acid, 5-AIPA, AMINOISOPHTHALIC(5-) ACID, MFCD00002522, EINECS 202-748-5
5-Aminoisophthalic acid (CAS 99-31-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H7NO4 and a molecular weight of 181.15 g/mol. Key properties include a melting point of >300 °C(lit.), a boiling point of 514.9±45.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 265.2±28.7 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 99-31-0
- Jingsj CID
- J-1133177-4
- Molecular Formula
- C8H7NO4
- Molecular Weight
- 181.15 g/mol
- Category
- Organic Acids
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | >300 °C(lit.) |
|---|---|
| Boiling Point | 514.9±45.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 265.2±28.7 °C |
| Exact Mass | 181.037506 |
| PSA | 100.62000 |
| LogP | 0.72 |
| Vapor Pressure | 0.0±1.4 mmHg at 25°C |
| Refractive Index | 1.684 |
| Additional Property | INSOLUBLE |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2922499990 |
|---|---|
| Summary | HS:2922499990 other amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 5-Aminoisophthalic acid?
The CAS number of 5-Aminoisophthalic acid is 99-31-0.
What are the molecular formula and molecular weight of 5-Aminoisophthalic acid?
5-Aminoisophthalic acid has molecular formula C8H7NO4 and molecular weight 181.15 g/mol.
Is 5-Aminoisophthalic acid hazardous?
5-Aminoisophthalic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 5-Aminoisophthalic acid?
For 5-Aminoisophthalic acid, Upstream Products: 5-Nitroisophthalic acid, Carbon; Downstream Products: 5-Amino-2,4,6-triiodoisophthalic acid, 5-Amino-2,4,6-triiodoisophthaloyl dichloride, (3-Amino-5-methylphenyl)methanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Aminoisophthalic acid (CAS 99-31-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1133177-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.