ChemicalBook > CAS DataBase List > 2-Chlorobenzoic acid

2-Chlorobenzoic acid

Product Name
2-Chlorobenzoic acid
CAS No.
118-91-2
Chemical Name
2-Chlorobenzoic acid
Synonyms
OCBA;O-CHLOROBENZOIC ACID;2-CBA;2-chlorobenzoate;NSC 15042;NSC 32737;2-Chlorobenzoi;2-chlorobenzoic;orobenzoic acid;AKOS BBS-00003732
CBNumber
CB6463683
Molecular Formula
C7H5ClO2
Formula Weight
156.57
MOL File
118-91-2.mol
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2-Chlorobenzoic acid Property

Melting point:
138-140 °C (lit.)
Boiling point:
285 °C
Density 
1.544
vapor pressure 
0.001 hPa (25 °C)
refractive index 
1.5812 (estimate)
Flash point:
173 °C
storage temp. 
Store below +30°C.
solubility 
cold water: soluble900 part
pka
2.92(at 25℃)
form 
Powder
color 
White to off-white
PH
3.4 (0.2g/l, H2O, 20℃)
Water Solubility 
soluble in hot water
Merck 
14,2124
BRN 
907340
Stability:
Stable, combustible. Incompatible with strong bases, strong oxidizing agents.
InChIKey
IKCLCGXPQILATA-UHFFFAOYSA-N
CAS DataBase Reference
118-91-2(CAS DataBase Reference)
NIST Chemistry Reference
Benzoic acid, 2-chloro-(118-91-2)
EPA Substance Registry System
o-Chlorobenzoic acid (118-91-2)
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Safety

Hazard Codes 
Xi
Risk Statements 
36-36/37/38
Safety Statements 
26-37/39
WGK Germany 
2
RTECS 
DG4976000
Autoignition Temperature
530 °C
Hazard Note 
Irritant
TSCA 
Yes
HS Code 
29163900
Hazardous Substances Data
118-91-2(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: 2465 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

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.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
135577
Product name
2-Chlorobenzoic acid
Purity
98%
Packaging
5g
Price
$29.3
Updated
2024/03/01
Sigma-Aldrich
Product number
135577
Product name
2-Chlorobenzoic acid
Purity
98%
Packaging
100g
Price
$38.5
Updated
2024/03/01
TCI Chemical
Product number
C0133
Product name
2-Chlorobenzoic Acid
Purity
>98.0%(GC)(T)
Packaging
25g
Price
$27
Updated
2024/03/01
TCI Chemical
Product number
C0133
Product name
2-Chlorobenzoic Acid
Purity
>98.0%(GC)(T)
Packaging
500g
Price
$53
Updated
2024/03/01
Alfa Aesar
Product number
A10832
Product name
2-Chlorobenzoic acid, 98+%
Packaging
250g
Price
$26.9
Updated
2024/03/01
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2-Chlorobenzoic acid Chemical Properties,Usage,Production

Description

2-Chlorobenzoic acid is an organic compound with the formula ClC6H4CO2H. It is one of three isomeric chlorobenzoic acids, the one that is the strongest acid. This white solid is used as a precursor to a variety of drugs, food additives, and dyes.

Chemical Properties

2-chlorobenzoic acid is a white to pale cream crystals or powder, It is insoluble in water, 95% ethanol solution and toluene solution, soluble in methanol, anhydrous ethanol, ether, acetone and benzene.It is the intermediate of fungicide flubenthrinol, insecticide mirex and bollenuron, and acaricide tetrabenazine.

Uses

2-Chlorobenzoic acid was used to study the degradation of 2-bromobenzoic acid by Pseudomonas aeruginosa.

Uses

The toxicity of halogenated benzoic acids was found to be directly related to the compound's hydrophobicity. Toxicity and quantitative structure-activity relationships of benzoic acids to Pseudokirchn eriella subcapitata.

Uses

Preservative for glues, paints. Intermediate in the manufacture of fungicides and dyes.

Definition

ChEBI: 2-chlorobenzoic acid is a monochlorobenzoic acid having the chloro group at the 2-position. It has a role as a plant hormone and a plant metabolite. It is a monochlorobenzoic acid and a 2-halobenzoic acid. It is a conjugate acid of a 2-chlorobenzoate.

Preparation

It is prepared by the oxidation of 2-chlorotoluene. The laboratory scale reaction employs potassium permanganate. Alternatively it arises by the hydrolysis of α,α,α-trichloro-2-toluene.
The chloride is readily replaced by ammonia to 2-aminobenzoic acid. At elevated temperature it decarboxylates.

Synthesis Reference(s)

The Journal of Organic Chemistry, 44, p. 1247, 1979 DOI: 10.1021/jo01322a012
Tetrahedron Letters, 35, p. 1539, 1994 DOI: 10.1016/S0040-4039(00)76752-9

General Description

Crystals or fine fluffy white powder.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

2-Chlorobenzoic acid is incompatible with strong oxidizing agents and strong bases.

Fire Hazard

Flash point data for 2-Chlorobenzoic acid are not available; however, 2-Chlorobenzoic acid is probably combustible.

Purification Methods

Crystallise the acid successively from glacial acetic acid, aqueous EtOH, and pet ether (b 60-80o). Other solvents include hot water or toluene (ca 4mL/g). The crude material can be initially purified by dissolving 30g in 100mL of hot water containing 10g of Na2CO3, boiling with 5g of charcoal for 15minutes, then filtering and adding 31mL of 1:1 aqueous HCl. The precipitate is washed with a little water and dried at 100o. [Beilstein 9 IV 956.]

Toxics Screening Level

The lTSL for o-chlorobenzoic acid has been changed from 0.04 μg/m3 to 0.1 μg/m3 based on an annual averaging time.

2-Chlorobenzoic acid Preparation Products And Raw materials

Raw materials

Barium hydroxide octahydrate Sodium hypochlorite 2,2'-Azobis(2-methylpropionitrile) NITROUS ACID Chlorine Barium hydroxide Sodium nitrite Copper(II) sulfate pentahydrate Copper(I) chloride Hydrochloric acid Copper(II) sulfate Sodium hydroxide Hydrochloric acid Anthranilic acid Sodium nitrate 2-Chlorotoluene 2-Chlorobenzoyl chloride

Preparation Products

2-Chloro-5-nitrobenzoic acid 3-(o-chlorophenyl)-3-hydroxy-3-phenylpropiononitrile PYRIFTALID 2-Chlorophenyl cyclopentyl ketone (2-Chlorophenyl)phenyl-methanone Ketamine hydrochloride CLOTRIMAZOLE IMP. A (PHARMEUROPA): (2-CHLOROPHENYL)DIPHENYLMETHANOL 9(10H)-ACRIDONE 3-CHLORODIPHENYLAMINE Diclofenac sodium Ethyl 2-Chlorobenzoate Clofenamic acid 2-Chlorobenzonitrile KETAMINE RELATED COMPOUND A (50 MG) (1 -[(2-CHLOROPHENYL)(METHYLIMINO)METHYL]CYLCOPENTA-NOL) Flufenamic acid Clotrimazole Meclofenamic acid chlorbenzuron 2-Chlorobenzoyl chloride 2-Chlorotrityl chloride
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2-Chlorobenzoic acid Suppliers

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View Lastest Price from 2-Chlorobenzoic acid manufacturers

Speranza Chemical Co., Ltd.
Product
2-Chlorobenzoic acid 118-91-2
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
300MT/year
Release date
2019-12-24
Hebei Mujin Biotechnology Co.,Ltd
Product
2-Chlorobenzoic acid 118-91-2
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000KG
Release date
2023-08-01
HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
Product
2-Chlorobenzoic acid 118-91-2
Price
US $100.00-70.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
5000
Release date
2024-08-16

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