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2-Amino-4-bromobenzoic acid

2-Amino-4-bromobenzoic acid structure

CAS No.: 20776-50-5

Chemical Name:: 2-Amino-4-bromobenzoic acid

Synonyms: BUTTPARK 49\07-49;4-BROMOANTHRANILIC ACID;4-BromoanthranilicAcid>2-AMINO-4-BROMOBENZOIC ACID;4-bromo-2-aminoebnzoic acid;4-Bromo-2-amino benzoic acid;2-azanyl-4-bromo-benzoic acid;BENZOIC ACID, 2-AMINO-4-BROMO-;2-Amino-4-bromobenzoic acid 97%;2-Amino-4-bromobenzoic acid ,98%

CBNumber:: CB0665032

Molecular Formula:: C7H6BrNO2

Molecular Weight:: 216.03

MDL Number:: MFCD03618454

MOL File:: 20776-50-5.mol

MSDS File:: SDS

Last updated:2026-05-27 22:48:19

Product description	Number	Pack Size	Price
2-Amino-4-bromobenzoic acid 97%	664863	5g	$190
2-Amino-4-bromobenzoic acid 97%	664863	1g	$37.3
4-Bromoanthranilic Acid >98.0%(HPLC)(T)	B3356	1g	$22
4-Bromoanthranilic Acid >98.0%(HPLC)(T)	B3356	5g	$38
2-AMINO-4-BROMOBENZOIC ACID 97%	51550	5G	$28
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2-Amino-4-bromobenzoic acid Properties

Melting point	230-234 °C
Boiling point	352.4±32.0 °C(Predicted)
Density	1.793±0.06 g/cm3(Predicted)
storage temp.	Keep in dark place,Inert atmosphere,Room temperature
pka	4.71±0.10(Predicted)
form	powder to crystal
color	White to Orange to Green
Water Solubility	Soluble in water (slightly).
Major Application	peptide synthesis
InChI	InChI=1S/C7H6BrNO2/c8-4-1-2-5(7(10)11)6(9)3-4/h1-3H,9H2,(H,10,11)
InChIKey	BNNICQAVXPXQAH-UHFFFAOYSA-N
SMILES	C(O)(=O)C1=CC=C(Br)C=C1N
CAS DataBase Reference	20776-50-5(CAS DataBase Reference)
FDA UNII	WZ79Y7SDK5
UNSPSC Code	12352106
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS06

Signal word

Danger

Hazard statements

H301

Precautionary statements

P264-P270-P301+P310-P405-P501

PPE

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Hazard Codes

Risk Statements

Safety Statements

36/37

RIDADR

UN 2811 6.1/PG 3

WGK Germany

HazardClass

IRRITANT

HS Code

29224999

Storage Class

6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects

Hazard Classifications

Acute Tox. 3 Oral

NFPA 704

	0
2		0

2-Amino-4-bromobenzoic acid price More Price(69)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	664863	2-Amino-4-bromobenzoic acid 97%	20776-50-5	5g	$190	2026-04-30	Buy
Sigma-Aldrich	664863	2-Amino-4-bromobenzoic acid 97%	20776-50-5	1g	$37.3	2023-06-20	Buy
TCI Chemical	B3356	4-Bromoanthranilic Acid >98.0%(HPLC)(T)	20776-50-5	1g	$22	2026-04-30	Buy
TCI Chemical	B3356	4-Bromoanthranilic Acid >98.0%(HPLC)(T)	20776-50-5	5g	$38	2026-04-30	Buy
AstaTech	51550	2-AMINO-4-BROMOBENZOIC ACID 97%	20776-50-5	5G	$28	2026-04-30	Buy

Product number	Packaging	Price	Buy
664863	5g	$190	Buy
664863	1g	$37.3	Buy
B3356	1g	$22	Buy
B3356	5g	$38	Buy
51550	5G	$28	Buy

2-Amino-4-bromobenzoic acid Chemical Properties,Uses,Production

Chemical Properties

slight yellow to white powder

Uses

2-Amino-4-bromobenzoic acid, , is used as an important raw material and intermediate used in organic Synthesis, pharmaceuticals, agrochemicals and dyestuff.

reaction suitability

reaction type: solution phase peptide synthesis

Synthesis

99277-71-1

20776-50-5

2) Under stirring conditions, 4-bromo-2-nitrobenzoic acid (1.80 g, 7.83 mmol) was dissolved in 0.88 N aqueous sodium hydroxide (10 mL), followed by the sequential addition of ferric (III) chloride (133 mg) and isopropanol (0.7 mL). Hydrazine hydrate (1.1 mL) was slowly added dropwise to the above mixture and the reaction system was warmed up to 75 °C with continuous stirring for 2 hours. After completion of the reaction, the mixture was filtered and the filtrate was concentrated to give the crude product. The crude product was washed with water to afford 4-bromo-2-aminobenzoic acid (1.73 g, 96% yield). The structure of the product was confirmed by 1H NMR (DMSO-d6): δ 6.62 (dd, J = 1.5, 8.5 Hz, 1H), 6.95 (d, J = 1.5 Hz, 1H), 7.56 (d, J = 8.5 Hz, 1H).

References

[1] Patent: US2004/116422, 2004, A1. Location in patent: Page/Page column 31
[2] Organic Letters, 2011, vol. 13, # 19, p. 5220 - 5223
[3] Journal of Organic Chemistry, 1997, vol. 62, # 5, p. 1240 - 1256
[4] Patent: WO2006/51290, 2006, A2. Location in patent: Page/Page column 111; 144
[5] Collection of Czechoslovak Chemical Communications, 1935, vol. 7, p. 436,443

2-Amino-4-bromobenzoic acid Preparation Products And Raw materials

Raw materials

4-Bromophthalimide Methyl 2-amino-4-bromobenzoate 4-Bromo-2-nitrobenzoic acid 6-Bromoisatin Benzoic acid, 2-aMino-4-broMo-, ethyl ester

Sodium hydroxide HYDRAZINE Isopropyl alcohol Ferric chloride

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Preparation Products

2-AMINO-4-BROMOBENZYL ALCOHOL

2-Amino-4-bromobenzoic acid Suppliers

Global( 400)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Chuanghai Biotechnology Co., Ltd	+8615350571055	Sibel@chuanghaibio.com	China	8738	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20122	58
Hebei Zhuanglai Chemical Trading Co Ltd	+86-16264648883	niki@zlchemi.com	China	7245	58
Frapp's ChemicalNFTZ Co., Ltd.	+86 (576) 8169-6106	sales@frappschem.com	China	880	50
Capot Chemical Co.,Ltd.	+86-（0）57185586718 +86-13336195806	sales@capot.com	China	29640	60
Hi-Tech Chemistry Corp	0519-86626038	yuhh@hitechem.com	CHINA	810	58
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	33024	60
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29815	58
Win-Win Chemical CO., Limited	0086-577-64498589	sales@win-winchemical.com	CHINA	998	58
Changzhou Ansciep Chemical Co., Ltd.	+86 519 86305871	sales@ansciepchem.com	CHINA	4241	58

Supplier	Advantage
Hebei Chuanghai Biotechnology Co., Ltd	58
Henan Fengda Chemical Co., Ltd	58
Hebei Zhuanglai Chemical Trading Co Ltd	58
Frapp's ChemicalNFTZ Co., Ltd.	50
Capot Chemical Co.,Ltd.	60
Hi-Tech Chemistry Corp	58
ATK CHEMICAL COMPANY LIMITED	60
career henan chemical co	58
Win-Win Chemical CO., Limited	58
Changzhou Ansciep Chemical Co., Ltd.	58

View Lastest Price from 2-Amino-4-bromobenzoic acid manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-03-20	2-Amino-4-bromobenzoic acid 20776-50-5		1KG	99%	20 mt	Hebei Chuanghai Biotechnology Co., Ltd
2025-09-25	2-Amino-4-bromobenzoic acid 20776-50-5	$1.00-200.00	1KG	99%, 99.5% Sublimated		Henan Fengda Chemical Co., Ltd
2025-05-23	2-Amino-4-bromobenzoic acid 20776-50-5	$10.00	1kg	99%	20 ton	Hebei Zhuanglai Chemical Trading Co Ltd

2-Amino-4-bromobenzoic acid
20776-50-5
99%
Hebei Chuanghai Biotechnology Co., Ltd

2-Amino-4-bromobenzoic acid
20776-50-5
$1.00-200.00
99%, 99.5% Sublimated
Henan Fengda Chemical Co., Ltd

2-Amino-4-bromobenzoic acid
20776-50-5
$10.00
99%
Hebei Zhuanglai Chemical Trading Co Ltd

2-Amino-4-bromobenzoic acid Spectrum

2-Amino-4-bromobenzoic acid(20776-50-5)¹HNMR

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2-Amino-5-bromobenzoic acid Methyl 2-amino-4-bromobenzoate Anthranilic acid

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BENZOIC ACID, 2-AMINO-4-BROMO- BUTTPARK 49\07-49 4-bromo-2-aminoebnzoic acid 2-azanyl-4-bromo-benzoic acid 2-Amino-4-bromobenzoic acid ,98% 5-Bromo-2-carboxyaniline, 4-Bromoanthranilic acid 2 - aMino - 4 - broMine benzoic acid 2-Amino-4-bromobenzoic acid 97% 2-AMINO-4-BROMOBENZOIC ACID 4-BROMOANTHRANILIC ACID 4-BromoanthranilicAcid> 2-Amino-4-bromobenzoic acid USP/EP/BP 4-Bromo-2-amino benzoic acid 2-Amino-4-bromobenzoic acid, 97% 20776-50-5 20776-50-6 C7H5BrNO3 C7H6ClBr Specialty Synthesis Unnatural Amino Acid Derivatives Peptide Synthesis Aromatic Amino Acids Carboxylic Acids Phenyls & Phenyl-Het Aromatic Amino Acids Peptide Synthesis Unnatural Amino Acid Derivatives Benzoic acid series Carboxylic Acids Phenyls & Phenyl-Het Multisubstituted Benzene Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts benzene derivative Pyrrolidines bc0001