ChemicalBook > CAS DataBase List > 2,4-Dichlorobenzoic acid

2,4-Dichlorobenzoic acid

Product Name
2,4-Dichlorobenzoic acid
CAS No.
50-84-0
Chemical Name
2,4-Dichlorobenzoic acid
Synonyms
2,4-DCBA;2,4-Dichlorobenzoic;2,4-Dichlolrobenzoic Acid;Benzoic acid, 2,4-dichloro-;'LGC' (1305);2.4-Dichlorobe;orbenzoic acid;AKOS BBS-00003747;Dichlorbenzoic aci;RARECHEM AL BO 0324
CBNumber
CB9255955
Molecular Formula
C7H4Cl2O2
Formula Weight
191.01
MOL File
50-84-0.mol
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2,4-Dichlorobenzoic acid Property

Melting point:
157-160 °C (lit.)
Boiling point:
200 °C
Density 
1.4410 (rough estimate)
refractive index 
1.4590 (estimate)
storage temp. 
Sealed in dry,Room Temperature
solubility 
ethanol: soluble1g/10 mL, clear, colorless
form 
Powder
pka
2.68±0.25(Predicted)
color 
White to almost white
PH
2.8 (0.36g/l, H2O, 15℃)
Water Solubility 
0.36 g/L (15 ºC)
BRN 
1868192
Stability:
Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference
50-84-0(CAS DataBase Reference)
NIST Chemistry Reference
2,4-Dichlorobenzoic acid(50-84-0)
EPA Substance Registry System
Benzoic acid, 2,4-dichloro- (50-84-0)
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Safety

Hazard Codes 
Xn,Xi
Risk Statements 
22-36/37/38
Safety Statements 
26-36-37/39-22
WGK Germany 
3
RTECS 
DG6650000
Hazard Note 
Irritant
TSCA 
Yes
HS Code 
29163900
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

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.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
139572
Product name
2,4-Dichlorobenzoic acid
Purity
98%
Packaging
5g
Price
$36.4
Updated
2024/03/01
Sigma-Aldrich
Product number
139572
Product name
2,4-Dichlorobenzoic acid
Purity
98%
Packaging
100g
Price
$40.1
Updated
2024/03/01
TCI Chemical
Product number
D0337
Product name
2,4-Dichlorobenzoic Acid
Purity
>97.0%(GC)(T)
Packaging
25g
Price
$16
Updated
2024/03/01
TCI Chemical
Product number
D0337
Product name
2,4-Dichlorobenzoic Acid
Purity
>97.0%(GC)(T)
Packaging
500g
Price
$73
Updated
2024/03/01
Alfa Aesar
Product number
A12372
Product name
2,4-Dichlorobenzoic acid, 98%
Packaging
250g
Price
$37.65
Updated
2024/03/01
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2,4-Dichlorobenzoic acid Chemical Properties,Usage,Production

Chemical Properties

white powder

Uses

2,4-Dichlorobenzoic Acid is a di-halogenated benzoic acid derivative and an intermediate in the synthesis of spirodiclofen (S682990), a tetronic acid acaricide fungicide used in controlling red mites.

Uses

2,4-Dichlorobenzoic acid is used as reagent during the synthesis of pyrimido[2?,1?:2,3]thiazolo[4,5-b]quinoxaline derivatives. It is also used as starting reagent during the synthesis of 1-(substituted)-1,4-dihydro-6-nitro-4-oxo-7-(sub-secondary amino)-quinoline-3-carboxylic acids.

Definition

ChEBI: A chlorobenzoic acid that is benzoic acid in which the ring hydrogens at positions 2 and 4 are substituted by chloro groups.

General Description

White to slightly yellowish powder.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

2,4-Dichlorobenzoic acid is a halogenated carboxylic acid. Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry. Even "insoluble" carboxylic acids may absorb enough water from the air and dissolve sufficiently in 2,4-Dichlorobenzoic acid to corrode or dissolve iron, steel, and aluminum parts and containers. Carboxylic acids, like other acids, react with cyanide salts to generate gaseous hydrogen cyanide. The reaction is slower for dry, solid carboxylic acids. Insoluble carboxylic acids react with solutions of cyanides to cause the release of gaseous hydrogen cyanide. Flammable and/or toxic gases and heat are generated by the reaction of carboxylic acids with diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides. Carboxylic acids, especially in aqueous solution, also react with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), to generate flammable and/or toxic gases and heat. Their reaction with carbonates and bicarbonates generates a harmless gas (carbon dioxide) but still heat. Like other organic compounds, carboxylic acids can be oxidized by strong oxidizing agents and reduced by strong reducing agents. These reactions generate heat. A wide variety of products is possible. Like other acids, carboxylic acids may initiate polymerization reactions; like other acids, they often catalyze (increase the rate of) chemical reactions.

Fire Hazard

Flash point data for 2,4-Dichlorobenzoic acid are not available; however, 2,4-Dichlorobenzoic acid is probably combustible.

Purification Methods

Crystallise the acid from aqueous EtOH (charcoal), then *benzene (charcoal). It can also be recrystallised from water. [Beilstein 9 IV 998.] It can be freed from isomeric acids (to <0.05%) via the (±)--methylbenzylamine salt as follows: dissolve the dichloro-acid (10g, 50.2mmol) in isopropanol (200mL), heat to 60o and add the (±)-benzylamine (5.49g, 45.3mmol), then stir it at 60o for 1hour. Cool the mixture to room temperature, filter the slurry, wash it with isopropanol (25mL) and dry it in vacuo at 40o overnight to give 79% of the salt with m 185.2o. Dissolve the salt (5g) in H2O (50mL) and MeOH (20mL), then heat to 60o and add concentrated HCl to pH <2.0. Cool the solution to room temperature add H2O (12mL), filter it, wash it with H2O (30mL) and dry it in vacuo at 40o overnight to give 94% of the acid with m 162.0o. [Ley & Yates Organic Process Research & Development 12 120 2008.]

2,4-Dichlorobenzoic acid Preparation Products And Raw materials

Raw materials

2,4-Dichlorotoluene 2,3,4,5,6-PENTACHLOROTOLUENE 2,4-Diaminotoluene PHOSGENE Copper(I) chloride Potassium formate Potassium permanganate 2,4-Dichlorobenzoyl chloride

Preparation Products

Lobenzarit ETHYL 2,4-DICHLOROBENZOATE Furosemide 2,4-Dichlorobenzonitrile 2,4-Dichloro-5-sulfamoylbenzoic acid 7-CHLORO-10-(4-HYDROXYANILINO)-2-METHOXY BENZO(B)-1,5-NAPHTHY RIDINE 2,4-DICHLORO-3,5-DINITROBENZOIC ACID 6-chloro-1H-indazol-3-amine 4-CHLORO-2-(4-METHOXY-PHENYLAMINO)-BENZOIC ACID 2,4-Dichlorobenzoyl chloride
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2,4-Dichlorobenzoic acid Suppliers

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View Lastest Price from 2,4-Dichlorobenzoic acid manufacturers

Speranza Chemical Co., Ltd.
Product
2,4-Dichlorobenzoic acid 50-84-0
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
300MT/year
Release date
2019-12-24
Hebei Weibang Biotechnology Co., Ltd
Product
2,4-Dichlorobenzoic acid 50-84-0
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10 mt
Release date
2024-11-20
Hebei Chuanghai Biotechnology Co,.LTD
Product
2,4-Dichlorobenzoic acid 50-84-0
Price
US $9.00/KG
Min. Order
1KG
Purity
99.9
Supply Ability
1 ton
Release date
2024-08-21

50-84-0, 2,4-Dichlorobenzoic acidRelated Search:

4-Aminobenzoic acid Estradiol benzoate 1,2-Dichloroethane 2',4'-Dichloroacetophenone 1,2-Dichloro-4-(chloromethyl)benzene Benzoic acid N,N-BIS(2-CHLOROETHYL)BENZENEMETHANAMINE DI-N-BUTYL TETRACHLOROPHTHALATE Tetrachlorophthalic anhydride 2,4-Dichlorobenzoyl peroxide 3,5-DICHLOROBENZOIC ACID 2,6-DICHLOROBENZOIC ACID Anthranilic acid 2,3-DICHLOROBENZOIC ACID 2,5-DICHLOROBENZOIC ACID 2,4-DICHLORO-3,5-DINITROBENZOIC ACID 2,4-Dichloro-5-sulfamoylbenzoic acid Tecloftalam

  • 2,4-Dichlolrobenzoic Acid
  • TETRASUL PESTANAL (2,4,4',5-TETRA- CHLOR
  • 2,4-Dichlorobenzoicacid,98%
  • 2,4-Dichlorobenzoic
  • Furosemide EP Impurity E
  • Furosemide Impurity 5(Furosemide EP Impurity E)
  • 2,4-Dichlorobenzyl alcohol EP Impurity E
  • 2,4-Dichlorobenzoic acid, 98% 100GR
  • 2,4-Dichlorobenzoic acid, 98% 5GR
  • Benzoic acid,2,4-dichloro- (8CI,9CI)
  • 2,4-Dichlorbenzoic a
  • 2,4- twochlorobenzoic acid
  • 2, 4 - dichlorobenzene forMic acid
  • 2.4-Dichlorobe
  • 2,4-dichloro-benzoicaci
  • Benzoic acid, 2,4-dichloro-
  • AKOS BBS-00003747
  • 2,4-DCBA
  • 2,4-DICHLOROBENZOIC ACID
  • 2,4-Dichlorbenzoic acid
  • Dichlorbenzoic aci
  • 'LGC' (1305)
  • RARECHEM AL BO 0324
  • 2,4-Dichlorobenzoic Acid &gt
  • furosemide iMpurit E
  • orbenzoic acid
  • Furosemide Impurity E(EP)
  • 2,4-Dichlorobenzyl Alcohol Impurity E
  • 2,4-Dichlorobenzoic Acid 98% For Synthesis
  • 50-84-0
  • 50-48-0
  • Carbonyl Compounds
  • Carboxylic Acids
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  • Building Blocks
  • Organic Building Blocks
  • C7
  • Carbonyl Compounds
  • Carboxylic Acids
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  • D
  • DAlphabetic
  • DIA - DIC
  • Pesticides&Metabolites
  • Organic acids
  • Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts
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