2-Chlorobenzoic acid

Modify Date: 2026-07-01 18:50:24

2-Chlorobenzoic acid structure	Common Name	2-Chlorobenzoic acid
	CAS Number	118-91-2	Molecular Weight	156.566
	Density	1.4±0.1 g/cm3	Boiling Point	275.7±13.0 °C at 760 mmHg
	Molecular Formula	C₇H₅ClO₂	Melting Point	138-140 °C(lit.)
	MSDS	Chinese USA	Flash Point	120.5±19.8 °C
	Symbol	GHS07	Signal Word	Warning

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name	2-chlorobenzoic acid
Synonym	More Synonyms

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density	1.4±0.1 g/cm3
Boiling Point	275.7±13.0 °C at 760 mmHg
Melting Point	138-140 °C(lit.)
Molecular Formula	C₇H₅ClO₂
Molecular Weight	156.566
Flash Point	120.5±19.8 °C
Exact Mass	155.997803
PSA	37.30000
LogP	2.04
Vapour Pressure	0.0±0.6 mmHg at 25°C
Index of Refraction	1.583
InChIKey	IKCLCGXPQILATA-UHFFFAOYSA-N
SMILES	O=C(O)c1ccccc1Cl
Stability	Stable, combustible. Incompatible with strong bases, strong oxidizing agents.
Water Solubility	soluble in hot water

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

2-Chlorobenzoic acid MSDS(Chinese)

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DG4976000

CHEMICAL NAME :: Benzoic acid, o-chloro-

CAS REGISTRY NUMBER :: 118-91-2

BEILSTEIN REFERENCE NO. :: 0907340

LAST UPDATED :: 199710

DATA ITEMS CITED :: 8

MOLECULAR FORMULA :: C7-H5-Cl-O2

MOLECULAR WEIGHT :: 156.57

WISWESSER LINE NOTATION :: QVR BG

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,576,1986

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,576,1986 ** ACUTE TOXICITY DATA **

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NCNSA6 National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. (Washington, DC) Volume(issue)/page/year: 5,18,1953

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2300 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: BCFAAI Bollettino Chimico Farmaceutico. (Societa Editoriale Farmaceutica, Via Ausonio 12, 20123 Milan, Italy) V.33- 1894- Volume(issue)/page/year: 112,53,1973 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83210 No. of Facilities: 21 (estimated) No. of Industries: 1 No. of Occupations: 2 No. of Employees: 249 (estimated)

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H319
Precautionary Statements	P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi:Irritant
Risk Phrases	R36/37/38
Safety Phrases	S26-S37/39
RIDADR	NONH for all modes of transport
WGK Germany	2
RTECS	DG4976000
HS Code	29163900

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor 10
CAS#:17849-38-6 2-Chlorobenzyl ... CAS#:32345-65-6 (DL)-o-chloroph... CAS#:949-67-7 Ethyl L-tyrosinate CAS#:609-65-4 2-Chlorobenzoyl...
CAS#:610-96-8 Methyl 2-chloro... CAS#:67-56-1 Methanol CAS#:694-80-4 2-Bromochlorobenzene CAS#:201230-82-2 carbon monoxide
CAS#:95-50-1 1,2-Dichlorobenzene CAS#:1956-97-4 Benzenediazoniu...
DownStream 10
CAS#:109029-95-0 2-CHLORO-5-(PIP... CAS#:107623-97-2 2'-CHLORO-2-HYD... CAS#:106924-10-1 6,8-dibromo-3-[... CAS#:106104-11-4 2-(dibenzofuran...
CAS#:35607-02-4 2-Chloro-4'-hyd... CAS#:500-41-4 3-fluoro-N-phen... CAS#:3722-51-8 3-hydroxy-9H-9-... CAS#:5067-90-3 2-Chlorobenzoyl...
CAS#:34911-25-6 7-Chlorindan-1-on CAS#:2516-96-3 2-Chloro-5-nitr...

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code	2916399090
Summary	2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

This table lists relevant public references with title, journal and publication metadata for this compound.

Benzenepolycarboxylic acids with potential anti-hemorrhagic properties and structure–activity relationships

Bioorg. Med. Chem. 19 , 7000-2, (2011)

Previously, we reported the structural requirements of the cinnamic acid relatives for inhibition of snake venom hemorrhagic action. In the present study, we examined the effect of benzenepolycarboxyl...

Pseudomonas aeruginosa 142 uses a three-component ortho-halobenzoate 1,2-dioxygenase for metabolism of 2,4-dichloro- and 2-chlorobenzoate.

J. Bacteriol. 176(11) , 3368-74, (1994)

Cell extracts of Pseudomonas aeruginosa 142, which was previously isolated from a polychlorinated biphenyl-degrading consortium, were shown to degrade 2,4-dichlorobenzoate, 2-chlorobenzoate, and a var...

Complete genome sequence of the haloaromatic acid-degrading bacterium Achromobacter xylosoxidans A8.

J. Bacteriol. 193(3) , 791-2, (2011)

Achromobacter xylosoxidans strain A8 was isolated from soil contaminated with polychlorinated biphenyls. It can use 2-chlorobenzoate and 2,5-dichlorobenzoate as sole sources of carbon and energy. This...

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

o-chlorobenzoic acid

O-CHLORO BENZOIC ACID

Mesalamine Impurity L

Benzoic acid,o-chloro

2-Cba

UNII-8P0867193V

2-chloro-benzoic acid

OCBA

MFCD00002412

2-Chlorobenzoic acid

EINECS 204-285-4

ortho-chlorobenzoic acid

Mesalazine Impurity 20

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the English name of 2-chlorobenzoic acid?

A: The English name of 2-chlorobenzoic acid is 2-chlorobenzoic acid.

Q: What are the upstream materials of 2-chlorobenzoic acid?

A: Related upstream materials(CAS) of 2-chlorobenzoic acid: 17849-38-6;32345-65-6;949-67-7;609-65-4;610-96-8;67-56-1;694-80-4;201230-82-2;95-50-1;1956-97-4.

Q: What is the melting point of 2-chlorobenzoic acid?

A: Melting point of 2-chlorobenzoic acid is 138-140 °C(lit.).

Q: What is the InChIKey of 2-chlorobenzoic acid?

A: InChIKey of 2-chlorobenzoic acid is IKCLCGXPQILATA-UHFFFAOYSA-N.

Q: What is the molecular formula of 2-chlorobenzoic acid?

A: Molecular formula of 2-chlorobenzoic acid is C7H5ClO2.

Q: What are the downstream products of 2-chlorobenzoic acid?

A: Related downstream products(CAS) of 2-chlorobenzoic acid: 109029-95-0;107623-97-2;106924-10-1;106104-11-4;35607-02-4;500-41-4;3722-51-8;5067-90-3;34911-25-6;2516-96-3.

Q: How is the water solubility of 2-chlorobenzoic acid?

A: Water solubility of 2-chlorobenzoic acid: soluble in hot water.

Q: What is the molecular weight of 2-chlorobenzoic acid?

A: Molecular weight of 2-chlorobenzoic acid is 156.566.

Q: What is the SMILES notation of 2-chlorobenzoic acid?

A: SMILES notation of 2-chlorobenzoic acid is O=C(O)c1ccccc1Cl.

Q: What is the polar surface area (PSA) of 2-chlorobenzoic acid?

A: Polar surface area (PSA) of 2-chlorobenzoic acid is 37.30000.

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd

Henan Tianfu Chemical Co., Ltd.

Zhongshan Xingrui Chemical Co. , Ltd.

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.

Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 2-Chlorobenzoic acid
Price: Check
Purity: 99.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: 1-OCBA (2-Chlorobenzoic Acid or orthochlorobenzoic acid) CAS No. 118-91-2
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: 2-Chlorobenzoic acid
Price: ￥Inquiry/25kg
Purity: 98.0%
Delivery: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

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2-Chlorobenzoic acid

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