ChemicalBook >> CAS DataBase List >>3,4-Diaminobenzoic acid
3,4-Diaminobenzoic acid
- CAS No.
- 619-05-6
- Chemical Name:
- 3,4-Diaminobenzoic acid
- Synonyms
- 3,4-diaminobenzoate;3,4-diaminebenzoic acid;RARECHEM AL BO 0903;TIMTEC-BB SBB000111;3,4-Diaminobenzoesure;4-DiaMinobenzoic acid;4-Carboxyphenyldiamine;3,4-DIAMINOBENZOIC ACID;Benzoicacid, 3,4-diaMino-;3,4-DIAMINOBENZOIC ACID 98%
- CBNumber:
- CB6422699
- Molecular Formula:
- C7H8N2O2
- Molecular Weight:
- 152.15
- MDL Number:
- MFCD00007726
- MOL File:
- 619-05-6.mol
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-05-28 05:20:58
| Melting point | 208-210 °C (dec.) (lit.) |
|---|---|
| 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 | Powder |
| pka | 5.02±0.10(Predicted) |
| color | Brown |
| Water Solubility | Soluble in water (2.2 mg/ml at 20°C), DMF, and methanol (10 mg/ml). |
| BRN | 775892 |
| Major Application | peptide synthesis |
| Cosmetics Ingredients Functions | HAIR DYEING |
| InChI | InChI=1S/C7H8N2O2/c8-5-2-1-4(7(10)11)3-6(5)9/h1-3H,8-9H2,(H,10,11) |
| InChIKey | HEMGYNNCNNODNX-UHFFFAOYSA-N |
| SMILES | C(O)(=O)C1=CC=C(N)C(N)=C1 |
| LogP | 0.130 |
| CAS DataBase Reference | 619-05-6(CAS DataBase Reference) |
| EWG's Food Scores | 1-4 |
| FDA UNII | 2H2G880K12 |
| UNSPSC Code | 12352200 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36-37/39 | |||||||||
| WGK Germany | 1 | |||||||||
| Hazard Note | Irritant | |||||||||
| HS Code | 29163990 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| NFPA 704 |
|
3,4-Diaminobenzoic acid price More Price(63)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | D12600 | 3,4-Diaminobenzoic acid 97% | 619-05-6 | 25g | $40.4 | 2024-03-01 | Buy |
| Sigma-Aldrich | D12600 | 3,4-Diaminobenzoic acid 97% | 619-05-6 | 5g | $33.9 | 2023-06-20 | Buy |
| TCI Chemical | D1117 | 3,4-Diaminobenzoic Acid | 619-05-6 | 5g | $18 | 2026-04-30 | Buy |
| TCI Chemical | D1117 | 3,4-Diaminobenzoic Acid | 619-05-6 | 25g | $50 | 2026-04-30 | Buy |
| Usbiological | 270650 | 3,4-Diaminobenzoic acid Asreported | 619-05-6 | 100g | $337 | 2026-06-03 | Buy |
3,4-Diaminobenzoic acid Chemical Properties, Uses, Production
Chemical Properties
brown powder
Physical properties
The 3,4-diaminobenzoic acid (3,4DAB) crystallizes in the monoclinic C2/c space group with a = 22.564(5), b = 3.940(1), c = 15.176(3) Å and β = 103.99(3)°. As can be seen in Fig.1 the acid appears in the solid state in the zwitterion form like natural existing amino acids. The proton of carboxylate group is moved to the amino group in the meta position of benzene ring.
Uses
3,4-Diaminobenzoic acid undergoes cyclocondensations to form, for example, quinoxalines1 and benzimidazoles. It acts as a redox label for electrochemical detection of single base mismatches.
reaction suitability
reaction type: solution phase peptide synthesis
Purification Methods
Crystallise it from H2O or toluene. [Beilstein 15 IV 1503.]
3,4-Diaminobenzoic acid Preparation Products And Raw materials
Raw materials
Preparation Products
1H-Benzimidazole-5-carboxylic acid
6-Quinoxalinecarboxylic acid
2-Methoxycarbonylamino-3H-benzoimidazole-5-carboxylic acid
Quinoxaline-6-carbaldehyde
2-(2-Chloro-phenyl)-1H-benzimidazole-5-carboxylic acid
1of3
Global Suppliers ( 393)
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Lianyungang City and Rui Technology Co., Ltd. | 015162260526; 15162260526 | sales@henrychem.com | China | 300 | 58 |
| Hangzhou Xinbaisi Biomedical Co., Ltd. | 13325818654 | zhsj@synbestech.com | China | 255 | 58 |
| Shandong Qianyuan Polymer Material Co. , Ltd. | 18678041314 18765609661 | 2547772582@qq.com | China | 987 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TAIYUAN RHF CO.,LTD. | +86 351 7031519 | sales@RHFChem.com | China | 2334 | 56 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
View Latest Price from 3,4-Diaminobenzoic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-16 | 3,4-Diaminobenzoic acid
619-05-6
|
$230.00 | 25Kg/Drum | 99.0%min | 10tons/month | Asia Chem I and E (Jiangsu) Co Ltd | |
 |
2026-09-16 | 3,4-Diaminobenzoic acid
619-05-6
|
$1.00 | 1KG | 98% | 10kg/month | WUHAN FORTUNA CHEMICAL CO., LTD | |
 |
2026-06-30 | 3,4-Diaminobenzoic acid
619-05-6
|
1kg | 99% | 10000KGS | Shaanxi Dideu New Materials Co. Ltd |
-
- 3,4-Diaminobenzoic acid
619-05-6
- $230.00
- 99.0%min
- Asia Chem I and E (Jiangsu) Co Ltd
-
- 3,4-Diaminobenzoic acid
619-05-6
- $1.00
- 98%
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- 3,4-Diaminobenzoic acid
619-05-6
- $0.00
- 99%
- Shaanxi Dideu New Materials Co. Ltd
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3,4-diaminebenzoic acid
619-05-6
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H2N2C6H3CO2H
Peptide Synthesis
Unnatural Amino Acid Derivatives
Aromatic Amino Acids
Specialty Synthesis
Organic acids
Aromatic Amino Acids
Peptide Synthesis
Unnatural Amino Acid Derivatives
Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts
619-05-6
bc0001
