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5-Bromo-2-chlorobenzoic acid CAS:21739-92-4

Name: 5-Bromo-2-chlorobenzoic acid CAS:21739-92-4
Brand: Orient
SKU: pr2511291001
Price: 5 USD
Availability: InStock

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CAS No.:

21739-92-4

Grade:

Industrial Grade

Content:

99%

Port:

SHANGHAI

Brand:

Orient

Packaging:

25kg/bag,500kg/bag, customized

Sample Available:

Yes

Price valid (until):

2025-12-29

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Qingdao Orient Chemical Co.,LTD

Company Type:

Trader

Location:

China

Payment Terms:

100% TT in advance

Average Lead Time:

10 days

Qualification:

Main Products:

pharmaceutical intermediates,peptides,electronic chemicals

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Product Details
Seller Information
Inquiry History

Description

5-Bromo-2-chlorobenzoic acid Basic information

Product Name:	5-Bromo-2-chlorobenzoic acid
Synonyms:	Benzoic acid, 5-bromo-2-chloro-;2-CHLORO-5-BROMOBENZOIC ACID;5-Bromo-2-chlorobenzoic acid, 98+%;5-BROMO-2-CHLOROBENZOIC ACID;5-Bromo-2-Chlorobenzoic Acid (BCBA);5-Bromo-2-chlorobenzoic acid ,99%;5-BROMO-2-CHLOROBENZOIC ACID FOR SYNTHES;5-Bromo-2-chlorobenzoic acid 97+%
CAS:	21739-92-4
MF:	C7H4BrClO2
MW:	235.46
EINECS:	244-558-5
Product Categories:	Building Blocks;Carbonyl Compounds;Carboxylic Acids;Chemical Synthesis;Organic Building Blocks;C7;Carbonyl Compounds;Carboxylic Acids;Benzoic acid series;Organic acids;Miscellaneous;Acids & Esters;Bromine Compounds;Chlorine Compounds;blocks;Bromides;Carboxes;Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts;Benzoic acid;bc0001;21739-92-4;john's
Mol File:	21739-92-4.mol

5-Bromo-2-chlorobenzoic acid Chemical Properties

Melting point	154-156 °C (lit.)
Boiling point	324.5±27.0 °C(Predicted)
density	1.7312 (rough estimate)
refractive index	1.5590 (estimate)
storage temp.	Sealed in dry,Room Temperature
solubility	2.63g/l
pka	2.49±0.25(Predicted)
form	Solid
color	Off white colored powder
Water Solubility	Soluble in water 2.63 g/L @20°C.
BRN	2691432
InChI	InChI=1S/C7H4BrClO2/c8-4-1-2-6(9)5(3-4)7(10)11/h1-3H,(H,10,11)
InChIKey	FGERXQWKKIVFQG-UHFFFAOYSA-N
SMILES	C(O)(=O)C1=CC(Br)=CC=C1Cl
CAS DataBase Reference	21739-92-4(CAS DataBase Reference)
NIST Chemistry Reference	5-Bromo-2-chlorobenzoic acid(21739-92-4)
EPA Substance Registry System	Benzoic acid, 5-bromo-2-chloro- (21739-92-4)

Safety Information

Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26-37/39
WGK Germany	3
HazardClass	IRRITANT
HS Code	29163900

5-Bromo-2-chlorobenzoic acid Usage And Synthesis

Description	5-Bromo-2-chlorobenzoic acid (BCBA) is an organic reagent that can be used in electroinduced dehalogenation reactions. Ag/Cu electrodes exhibit high electrocatalytic activity in the dehalogenation reaction of BCBA. The process is characterised by a sequence of halide excretion and hydrogen addition. Since the bond dissociation energy value of C-Br bond is smaller than that of C-Cl bond, Br-w is more easily released from the benzene ring. As C-Br breaks, BCBA gains electrons and hydrogen to form the intermediate 2-chlorobenzoate. C-Cl then breaks in the same way to give the final product benzoate.
Chemical Properties	white to light yellow crystal powder
Uses	5-Bromo-2-chlorobenzoic acid was used to evaluate the homogeneity of organic powder. It can be used to produce 2-chloro-5-deuteriobenzoic acid.
Synthesis	4.7g (0.03 mol) of 2-chlorobenzoic acid, 40mL of concentrated sulfuric acid and 0.936g (0.012 mol) of sodium sulfide are sequentially added into a 250mL four-mouth bottle, stirred for 20 minutes at 30 ℃ until the solution is clear, then 5.334g N-bromosuccinimide (0.03 mol) is added, the reaction is continued for 10 minutes at 30 ℃, and then the solution is slowly poured into 80mL ice water bath for crystallization to obtain a crude product of the 5-bromo-2-chlorobenzoic acid. Add the filter cake into a 250mL four-mouth bottle, add 24mL methanol and 36mL water, heat to 60 ℃, naturally cool, and stir for crystallization. Filtration, washing with 20mL of 40% volume fraction aqueous methanol, and drying at 55 ℃ for 6 hours gave 6.001g of a white solid, yield: 85.0%.

Shop Trimellitic Anhydride C9H4O5 552-30-7-Detailed Image 10

—— Q&A ——

Q1:Do you provide sample?

A: Yes, we can provide free sample, you only need pay the shipping cost.

Q2: What is the lead time?

A: For stock goods, it usually take about 5-7 days by air, 15-30 days by sea,For customized products, the delivery time needs to be confirmed based on the actual situation.

Q3: How can I buy? What is the payment method?

A: You can contract us through Email or you can browse our website:orientchem.cc, we have bank transfer,

A：We attach great importance to after-sales service of our products. If there are any quality issues, please contact us within 30 days of receiving the goods and we will handle returns and exchanges for you.

ECHEMI Editorial Reference

white to light yellow crystal powder

Certificates

Basic Info

Product Name:

5-Bromo-2-chlorobenzoic acid

Other Name:

Benzoic acid,5-bromo-2-chloro-;5-Bromo-2-chlorobenzoic acid;2-chloro-5-bromobenzoic acid

CAS No.:

21739-92-4

Molecular Formula:

C7H4BrClO2

InChIKeys:

InChIKey=FGERXQWKKIVFQG-UHFFFAOYSA-N

Molecular Weight:

235.46

Exact Mass:

235.46

BRN:

2691432

EC Number:

244-558-5

DSSTox ID:

DTXSID40176132

HScode:

29163900

Categories:

Bulk Drug Intermediates

Characteristics

PSA:

37.3

XLogP3:

2.9

Appearance:

White to beige powder.

Density:

1.8±0.1 g/cm3

Melting Point:

165-167 °C

Boiling Point:

324.5°C at 760 mmHg

Flash Point:

150.1±23.7 °C

Refractive Index:

1.621

Water Solubility:

soluble in water 2.63 g/L @20°C.

Storage Conditions:

Store below +30°C.

Vapor Pressure:

0.0001mmHg at 25°C

See More 5-Bromo-2-chlorobenzoic acid Properties 

Hazard Identification

Classification of the substance or mixture

Skin irritation, Category 2

Eye irritation, Category 2

Specific target organ toxicity â single exposure, Category 3

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Warning
Hazard statement(s)	H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation
Prevention	P264 Wash ... thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area.
Response	P302+P352 IF ON SKIN: Wash with plenty of water/... P321 Specific treatment (see ... on this label). P332+P317 If skin irritation occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P319 Get medical help if you feel unwell.
Storage	P403+P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up.
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More 5-Bromo-2-chlorobenzoic acid Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
pharmaceutical intermediates,peptides,electronic chemicals

Location:
Room 102, 1st Floor, East Office Building, No. 45 Pengwan Road, Qianwan Bonded Port Area, Qingdao Zone, China (Shandong) Pilot Free Trade Zone

Payment Terms:
100% TT in advance

Average lead Time:
10 days

Total Annual Revenue:
$10 million-$25 million

Total Employees:
51-100

Year of Establishment:
2024

A reliable supplier is like insurance.

We are mainly specilized in supply of pharmaceutical intermediates, electronic chemicals，food additives, and other fine chemical products.
Integrity is the foundation, quality is life. We would like to work together with you to build a greener and brighter future.

Website: orientchem.cc
Email: scarlett@orientchem.cc
WhatsApp: +86 17753254221

Inquiry History

12 Inquiries

Country	Product	Purchase Quantity	Date Posted
South Korea	5-Bromo-2-Chlorobenzoic Acid	100 KG	Mar 13, 2026
India	5-Bromo-2-chlorobenzoic acid	5 MT	Nov 28, 2025
India	5-Bromo-2-chlorobenzoic acid	1000 KG	Dec 22, 2025
India	5-Bromo-2-chlorobenzoic Acid	30 MT	Sep 19, 2025
India	5-Bromo-2-chlorobenzoic acid	500 KG	Aug 4, 2026
Romania	5-Bromo-2-chlorobenzoic acid	400 KG	Sep 24, 2025
India	5-Bromo-2-chlorobenzoic acid	1000.00 KG	Jun 30, 2025
India	5-Bromo-2-chlorobenzoic Acid	200 KG	Jun 12, 2024
India	5-Bromo-2-chlorobenzoic acid	10 KG	Jun 29, 2026
India	5-Bromo-2-chloro benzoic acid	1000 KG	Mar 13, 2026
India	5-bromo-2-chlorobenzoic acid	200 KG	Jun 6, 2024
India	5-Bromo-2-Chlorobenzoic Acid	3 TON	Jan 24, 2024

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5-Bromo-2-chlorobenzoic acid CAS:21739-92-4

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