2,3-Diaminobenzoic acid
- Product Name
- 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
- Formula Weight
- 152.15
- MOL File
- 603-81-6.mol
2,3-Diaminobenzoic acid Property
- 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)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H319Causes serious eye irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
N-Bromosuccinimide Price
- Product number
- D415025
- Product name
- 2,3-DiaminobenzoicAcid
- Packaging
- 500mg
- Price
- $65
- Updated
- 2021/12/16
- Product number
- D415025
- Product name
- 2,3-DiaminobenzoicAcid
- Packaging
- 1g
- Price
- $75
- Updated
- 2021/12/16
- Product number
- FD03094
- Product name
- 2,3-Diaminobenzoic acid
- Packaging
- 5G
- Price
- $100
- Updated
- 2021/12/16
- Product number
- 4657-1-11
- Product name
- 2,3-Diaminobenzoic acid
- Packaging
- 25g
- Price
- $225
- Updated
- 2021/12/16
- Product number
- FD03094
- Product name
- 2,3-Diaminobenzoic acid
- Packaging
- 25g
- Price
- $300
- Updated
- 2021/12/16
2,3-Diaminobenzoic acid Chemical Properties,Usage,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
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View Lastest Price from 2,3-Diaminobenzoic acid manufacturers
- Product
- 2,3-Diaminobenzoic acid 603-81-6
- Price
- US $10.00/KG
- Min. Order
- 100KG
- Purity
- 99%
- Supply Ability
- 100 mt
- Release date
- 2024-10-25
- Product
- 2,3-Diaminobenzoic acid 603-81-6
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 50000KG/month
- Release date
- 2023-06-26
- Product
- 2,3-Diaminobenzoic acid 603-81-6
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 98.4%
- Supply Ability
- 100 tons
- Release date
- 2022-02-20