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ChemicalBook >> CAS DataBase List >>2,3-Diaminobenzoic acid

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
Last updated:2025-02-20 15:41:13

2,3-Diaminobenzoic acid Properties

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)

SAFETY

Risk and Safety Statements

Symbol(GHS)  trực tiếp đá gà hôm nayLiên kết đăng nhập
GHS07
Signal word  Warning
Hazard statements  H302-H319
Precautionary statements  P261-P271-P280
Hazard Codes  Xi,Xn
Risk Statements  22-36
Safety Statements  26
HazardClass  IRRITANT
HS Code  29224999

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 2022-12-16 Buy
TRC D415025 2,3-DiaminobenzoicAcid 603-81-6 1g $75 2022-12-16 Buy
Biosynth Carbosynth FD03094 2,3-Diaminobenzoic acid 603-81-6 5G $100 2022-12-16 Buy
SynQuest Laboratories 4657-1-11 2,3-Diaminobenzoic acid 603-81-6 25g $225 2022-12-16 Buy
Biosynth Carbosynth FD03094 2,3-Diaminobenzoic acid 603-81-6 25g $300 2022-12-16 Buy
Product number Packaging Price Buy
D415025 500mg $65 Buy
D415025 1g $75 Buy
FD03094 5G $100 Buy
4657-1-11 25g $225 Buy
FD03094 25g $300 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.
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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.

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View Lastest Price from 2,3-Diaminobenzoic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
trực tiếp đá gà hôm nayLiên kết đăng nhập 2025-04-19 2,3-Diaminobenzoic acid
603-81-6
US $380.00 / kg 1kg 98.5 5tons/month Asia Chem I and E (Jiangsu) Co Ltd
trực tiếp đá gà hôm nayLiên kết đăng nhập 2024-06-27 2,3-Diaminobenzoic acid
603-81-6
US $0.00 / KG 1KG 99% 50000KG/month Hebei Mojin Biotechnology Co., Ltd
trực tiếp đá gà hôm nayLiên kết đăng nhập 2023-02-22 2,3-Diaminobenzoic acid
603-81-6
US $0.00 / KG 1KG 98.4% 100 tons Honest Joy Holdings Limited
2,3-DIAMINOBENZOIC ACID 2,3-Diaminobenzonicacid 3-carboxy-1,2-diaminobenzene 2,3-bis(azanyl)benzoic acid 2,3-diaMinobenzoic acid hydrochloride Benzoic acid, 2,3-diamino- 3-Diaminobenzoic acid 603-81-6 603-81-0 Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts pharmacetical Carboxylic Acids Phenyls & Phenyl-Het Benzoic acid API intermediates Carboxylic Acids Phenyls & Phenyl-Het
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