3,4-Diaminobenzoic acid

Product Name: 3,4-Diaminobenzoic acid
CAS No.: 619-05-6
Chemical Name: 3,4-Diaminobenzoic acid
Synonyms: 3,4-diaminobenzoate;RARECHEM AL BO 0903;TIMTEC-BB SBB000111;3,4-Diaminobenzoesure;4-DiaMinobenzoic acid;4-Carboxyphenyldiamine;3,4-diaminebenzoic acid;3,4-DIAMINOBENZOIC ACID;Benzoicacid, 3,4-diaMino-;3,4-DIAMINOBENZOIC ACID 98%
CBNumber: CB6422699
Molecular Formula: C7H8N2O2
Formula Weight: 152.15
MOL File: 619-05-6.mol

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3,4-Diaminobenzoic acid Property

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
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)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-36-37/39
WGK Germany: 1
Hazard Note: Irritant
HS Code: 29163990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: D12600
Product name: 3,4-Diaminobenzoic acid
Purity: 97%
Packaging: 25g
Price: $40.4
Updated: 2024/03/01

Sigma-Aldrich

Product number: D12600
Product name: 3,4-Diaminobenzoic acid
Purity: 97%
Packaging: 5g
Price: $33.9
Updated: 2023/06/20

TCI Chemical

Product number: D1117
Product name: 3,4-Diaminobenzoic Acid
Packaging: 5g
Price: $20
Updated: 2025/07/31

TCI Chemical

Product number: D1117
Product name: 3,4-Diaminobenzoic Acid
Packaging: 25g
Price: $55
Updated: 2025/07/31

Sigma-Aldrich

Product number: D12600
Product name: 3,4-Diaminobenzoic acid
Purity: 97%
Packaging: 100g
Price: $85.4
Updated: 2023/06/20

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3,4-Diaminobenzoic acid Chemical Properties,Usage,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

4-Nitrobenzoic acid

Preparation Products

1H-Benzimidazole-5-carboxylic acid 6-QUINOXALINECARBOXYLIC ACID

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3,4-Diaminobenzoic acid Suppliers

Americas 1 Belgium 3 Canada 1 China 268 Europe 4 Germany 7 India 36 Italy 1 Japan 5 Slovakia 1 South Korea 1 Switzerland 2 Ukraine 2 United Kingdom 17 United States 54 Global 403

Lianyungang City and Rui Technology Co., Ltd.

Tel: 015162260526; 15162260526
Fax: 051885593298
Email: sales@henrychem.com
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Hangzhou Xinbaisi Biomedical Co., Ltd.

Tel: 13325818654
Fax: 057188737015
Email: zhsj@synbestech.com
Country: China
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J & K SCIENTIFIC LTD.

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Meryer (Shanghai) Chemical Technology Co., Ltd.

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Country: China
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Alfa Aesar

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Email: saleschina@alfa-asia.com
Country: China
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TAIYUAN RHF CO.,LTD.

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TCI (Shanghai) Development Co., Ltd.

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Beijing HwrkChemical Technology Co., Ltd

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Energy Chemical

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Pure Chemistry Scientific Inc.

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ProdList: 10186
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View Lastest Price from 3,4-Diaminobenzoic acid manufacturers

Shandong Vital Biotechnology Co., Ltd.

Product: 3,4-Diaminobenzoicacid 619-05-6
Price: US $0.00-0.00/kg
Min. Order: 1kg
Purity: 98%
Supply Ability: 100tons
Release date: 2025-11-20

WUHAN FORTUNA CHEMICAL CO., LTD

Product: 3,4-Diaminobenzoic acid 619-05-6
Price: US $1.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 10kg/month
Release date: 2021-12-27

Hebei Chuanghai Biotechnology Co., Ltd

Product: 3,4-Diaminobenzoic acid 619-05-6
Price: US $10.00-8.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 10 mt
Release date: 2024-12-05

619-05-6, 3,4-Diaminobenzoic acidRelated Search:

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TIANFUCHEM--619-05-6--3,4-Diaminobenzoic acid factory price

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619-05-6

619-05-3

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

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