2,3-Diaminobenzoic acid
- CAS No.
- 603-81-6
- Chemical Name:
- 2,3-Diaminobenzoic acid
- Synonyms
- 3-Diaminobenzoic acid;2,3-Diaminobenzonicacid;2,3-DIAMINOBENZOIC ACID;Benzoic acid, 2,3-diamino-;2,3-bis(azanyl)benzoic acid;3-carboxy-1,2-diaminobenzene;2,3-diaMinobenzoic acid hydrochloride
- CBNumber:
- CB5194337
- Molecular Formula:
- C7H8N2O2
- Molecular Weight:
- 152.15
- MDL Number:
- MFCD00137818
- MOL File:
- 603-81-6.mol
- MSDS File:
- SDS
| Melting point | 198-204 °C |
|---|---|
| Boiling point | 274.61°C (rough estimate) |
| Density | 1.2804 (rough estimate) |
| refractive index | 1.5200 (estimate) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| form | solid |
| pka | 5.10±0.10(Predicted) |
| color | Brown to dark brown |
| CAS DataBase Reference | 603-81-6(CAS DataBase Reference) |
2,3-Diaminobenzoic acid price More Price(28)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TRC | D415025 | 2,3-DiaminobenzoicAcid | 603-81-6 | 500mg | $65 | 2021-12-16 | Buy |
| TRC | D415025 | 2,3-DiaminobenzoicAcid | 603-81-6 | 1g | $75 | 2021-12-16 | Buy |
| Biosynth Carbosynth | FD03094 | 2,3-Diaminobenzoic acid | 603-81-6 | 5G | $100 | 2021-12-16 | Buy |
| SynQuest Laboratories | 4657-1-11 | 2,3-Diaminobenzoic acid | 603-81-6 | 25g | $225 | 2021-12-16 | Buy |
| Biosynth Carbosynth | FD03094 | 2,3-Diaminobenzoic acid | 603-81-6 | 25g | $300 | 2021-12-16 | Buy |
2,3-Diaminobenzoic acid Chemical Properties,Uses,Production
Uses
2,3-Diaminobenzoic acid (23DBA) is an important organic reagent mainly used in scientific research and laboratory experiments. 23DBA can undergo polycondensation with terephthalic acid dichloro anhydride[1]. 23DBA isomer is also used in the study of luminescence mechanism of red luminescent carbon dots (RCDs)[2]. In addition, 2,3-Diaminobenzoic acid also possesses antioxidant properties that help reduce the formation of free radicals in the body. It is also used as a chelating agent that effectively binds to metal ions and prevents them from forming insoluble complexes.
Synthesis
2,3-Diaminobenzoic acid is synthesised using 3-nitroanthranilic acid as a raw material by chemical reaction. The specific synthesis steps are as follows:
2-amino-3-nitrobenzoic acid (9.36 g, 51.4 mmol) was dissolved in MeOH (100 mL) and there was added 10% Pd/C (2.0g). The reaction was stirred under H2-atmosphere (ambient pressure) until absorption ceased. The reaction was filtered through a pad of Celite and the filtrate was evaporated under reduced pressure. The product was purified by flash chromatography (CH2Cl2/MeOH 5:1) and the collected fractions were evaporated to give 2,3-Diaminobenzoic acid (5.40 g, 69%) as a dark brown solid. mp. 199 °C dec. (Litt4. 201 °C dec.). 1H NMR (300 MHz, DMSO-d6) δ 7.09 (dd, J = 8.0, 1.5 Hz, 1H), 6.67 (dd, J = 7.4, 1.5 Hz, 1H), 6.34 (dd, J = 8.0, 7.4 Hz, 2H), 6.32 (br s, 4H). 13C NMR (75 MHz, DMSO-d6) δ 170.5, 139.6, 135.6, 119.4, 117.0, 114.9, 110.3.
References
[1] V. N. ODNORALOVA. The polycondensation reaction of 2,4-diaminobenzoic acid with dichloroanhydride of terephthalic acid[J]. Fibre Chemistry, 1974. DOI:10.1007/BF00542946.
[2] LIU Y, DING H, ZHANG S, et al. Photoluminescence mechanism of red emissive carbon dots from a diaminobenzoic acid isomer?[J]. Materials Advances, 2023. DOI:10.1039/D3MA00836C.
2,3-Diaminobenzoic acid Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 | sales@hbmojin.com | China | 12456 | 58 |
| Ouhuang Engineering Materials (Hubei) Co., Ltd | +8617702722807 | admin@hbouhuang.com | China | 2880 | 58 |
| Speranza Chemical Co., Ltd. | +86-86-075521030354 +8618688942810 | sophieliu@speranzachem.com | China | 723 | 55 |
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29914 | 58 |
| Zhejiang ZETian Fine Chemicals Co. LTD | 18957127338 | stella@zetchem.com | China | 2141 | 58 |
| Changzhou Ansciep Chemical Co., Ltd. | +86 519 86305871 | sales@ansciepchem.com | CHINA | 4242 | 58 |
| Jinan Carbotang Biotech Co.,Ltd. | +8615866703830 | figo.gao@foxmail.com | China | 7019 | 58 |
| Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 | alice@crovellbio.com | China | 8823 | 58 |
| Changzhou Ditong Chemical Co.,Ltd | +86-0519-88299272 | info@edengenechem.com | China | 2169 | 58 |
| Chongqing Chemdad Co., Ltd | +86-023-61398051 +8613650506873 | sales@chemdad.com | China | 39916 | 58 |
View Lastest Price from 2,3-Diaminobenzoic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2024-04-29 | 2,3-Diaminobenzoic acid
603-81-6
|
US $380.00 / kg | 1kg | 98.5 | 5tons/month | Asia Chem I and E (Jiangsu) Co Ltd | |
 |
2024-04-23 | 2,3-Diaminobenzoic acid
603-81-6
|
US $10.00 / kg | 1kg | 99.7% | 200000kg | Ouhuang Engineering Materials (Hubei) Co., Ltd | |
 |
2023-06-27 | 2,3-Diaminobenzoic acid
603-81-6
|
US $0.00 / KG | 1KG | 99% | 50000KG/month | Hebei Mojin Biotechnology Co., Ltd |
-
- 2,3-Diaminobenzoic acid
603-81-6
- US $380.00 / kg
- 98.5
- Asia Chem I and E (Jiangsu) Co Ltd
-
- 2,3-Diaminobenzoic acid
603-81-6
- US $10.00 / kg
- 99.7%
- Ouhuang Engineering Materials (Hubei) Co., Ltd
-
- 2,3-Diaminobenzoic acid
603-81-6
- US $0.00 / KG
- 99%
- Hebei Mojin Biotechnology Co., Ltd
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