4-Bromo-2-nitrobenzoic acid
- Product Name
- 4-Bromo-2-nitrobenzoic acid
- CAS No.
- 99277-71-1
- Chemical Name
- 4-Bromo-2-nitrobenzoic acid
- Synonyms
- Valine Impurity 115;4-bromo-2-nitrobenzoic;4-bromo-2-nitrobenzoate;4-Bromo-2-nitrobenzoicaci;4-Bromo-2-nitrobenzoic ac;Bromonitrobenzoicacid 42---;4-BROMO-2-NITROBENZOIC ACID;2-Bromo-2-nitrobenzoic acid;2-NITRO-4-BROMO BENZOIC ACID;5-Bromo-2-carboxynitrobenzene
- CBNumber
- CB1414776
- Molecular Formula
- C7H4BrNO4
- Formula Weight
- 246.01
- MOL File
- 99277-71-1.mol
4-Bromo-2-nitrobenzoic acid Property
- Melting point:
- 165-169 °C
- Boiling point:
- 368.6±32.0 °C(Predicted)
- Density
- 1.892±0.06 g/cm3(Predicted)
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- soluble in Methanol
- form
- powder to crystal
- pka
- 1.97±0.25(Predicted)
- color
- White to Gray to Brown
- CAS DataBase Reference
- 99277-71-1(CAS DataBase Reference)
Safety
- Hazard Codes
- Xn,N,Xi
- Risk Statements
- 22-36/37/38-43-50
- Safety Statements
- 26-36/37-61
- RIDADR
- UN 3077 9/PG 3
- WGK Germany
- 2
- HazardClass
- IRRITANT
- PackingGroup
- III
- HS Code
- 29163990
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H335May cause respiratory irritation
H400Very toxic to aquatic life
- Precautionary statements
-
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 664855
- Product name
- 4-Bromo-2-nitrobenzoic acid
- Purity
- 97%
- Packaging
- 1g
- Price
- $38.9
- Updated
- 2023/06/20
- Product number
- 664855
- Product name
- 4-Bromo-2-nitrobenzoic acid
- Purity
- 97%
- Packaging
- 5g
- Price
- $81.5
- Updated
- 2023/06/20
- Product number
- B3810
- Product name
- 4-Bromo-2-nitrobenzoic Acid
- Purity
- >98.0%(T)
- Packaging
- 5g
- Price
- $46
- Updated
- 2025/07/31
- Product number
- B3810
- Product name
- 4-Bromo-2-nitrobenzoic Acid
- Purity
- >98.0%(T)
- Packaging
- 25g
- Price
- $178
- Updated
- 2025/07/31
- Product number
- B686225
- Product name
- 4-Bromo-2-nitrobenzoic Acid
- Packaging
- 5g
- Price
- $130
- Updated
- 2021/12/16
4-Bromo-2-nitrobenzoic acid Chemical Properties,Usage,Production
Chemical Properties
Solid
Uses
Undergoes Negishi-type coupling with dimethylzinc in the presence of palladium-phosphine catalysis.
Uses
4-Bromo-2-nitrobenzoic acid is an intermediate in the synthesis of Lonafarnib (L469445), a potential anticancer agent.
Synthesis
610-36-6
99277-71-1
162046-38-0
Step 1: Synthesis of 4-bromo-2-nitrobenzoic acid The reference method was modified as follows (Boojamra, C.G.; Burow, K.M.; Thompson, L.A.; Ellman, J.A. J. Org. Chem., 1997, 62, 1240-1256): 1. An aqueous solution (65 mL) of NaNO2 (1.9 g, 27.4 mmol) was slowly added to a stirring solution of 4-amino-2-nitrobenzoic acid (1) (5 g, 27.4 mmol) dissolved in 48% aqueous HBr (40 mL) at 0 °C. After about 15 minutes, the turbid reaction mixture transformed into a clarified orange-yellow solution. 2. After continued stirring for 25 minutes, the solution was added dropwise to a solution of CuBr (5.2 g, 36.3 mmol) dissolved in 48% aqueous HBr (90 mL) at 0°C. Yellow foam generation and gas release from the purple-brown mixture were observed during the reaction. 3. After stirring at 0 °C for 1 h, the reaction mixture was concentrated under reduced pressure. 4. The aqueous layer was extracted with EtOAc (4 x 300 mL), the organic phases were combined, dried over Na2SO4 and concentrated to dryness to give a dark solid crude product. 5. The crude product was filtered through a column of Florisilica clay (~20 g) and washed with EtOAc. 6. The combined organic fractions were evaporated to about 50 mL, 200 mL of water was added, washed sequentially with 1 M HCl (2 x 50 mL), brine (50 mL), then dried with Na2SO4, filtered and concentrated to dryness to give 6.1 g of light yellow solid product (2) in 91% yield and >90% HPLC purity.
References
[1] Patent: US2005/256157, 2005, A1
[2] Patent: US2005/261307, 2005, A1
4-Bromo-2-nitrobenzoic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 4-Bromo-2-nitrobenzoic acid manufacturers
- Product
- 4-Bromo-2-nitrobenzoic acid 99277-71-1
- Price
- US $10.00/kg
- Min. Order
- 1kg
- Purity
- 99.5%
- Supply Ability
- 100 TON
- Release date
- 2024-11-29
- Product
- 4-Bromo-2-nitrobenzoic acid 99277-71-1
- Price
- US $100.00-1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2023-12-24
- Product
- 4-Bromo-2-nitrobenzoic acid 99277-71-1
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99.0%+
- Supply Ability
- 100 tons
- Release date
- 2020-01-07