3,4-Diaminobenzoic acid
Also known as: 4-Carboxy-o-phenylenediamine, 4-Carboxybenzene-1,2-diamine, 1,2-diaminobenzene-4-carboxylic acid, o-phenylenediamine-5-carboxylic acid
3,4-Diaminobenzoic acid (CAS 619-05-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H8N2O2 and a molecular weight of 152.151 g/mol. Key properties include a melting point of 208-210 °C (dec.)(lit.), a boiling point of 411.8±35.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 202.9±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 619-05-6
- Jingsj CID
- J-42316-5
- Molecular Formula
- C7H8N2O2
- Molecular Weight
- 152.151 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 208-210 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 411.8±35.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 202.9±25.9 °C |
| Exact Mass | 152.058578 |
| PSA | 89.34000 |
| LogP | 0.12 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.711 |
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 3,4-Diaminobenzoic acid?
The CAS number of 3,4-Diaminobenzoic acid is 619-05-6.
What are the molecular formula and molecular weight of 3,4-Diaminobenzoic acid?
3,4-Diaminobenzoic acid has molecular formula C7H8N2O2 and molecular weight 152.151 g/mol.
What are the upstream and downstream products of 3,4-Diaminobenzoic acid?
For 3,4-Diaminobenzoic acid, Upstream Products: 4-Amino-3-nitrobenzoic acid, Vanillic acid, 3-Amino-4-nitrobenzoic acid; Downstream Products: 1H-Benzimidazole-5-carbohydrazide, Quinoxalin-6-ylmethanol, Ethyl 3,4-diaminobenzoate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-Diaminobenzoic acid (CAS 619-05-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42316-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.