2,3-Dichlorobenzoic acid

ChemicalBook > CAS DataBase List > 2,3-Dichlorobenzoic acid

2,3-Dichlorobenzoic acid

Product Name: 2,3-Dichlorobenzoic acid
CAS No.: 50-45-3
Chemical Name: 2,3-Dichlorobenzoic acid
Synonyms: 2,3-Dichlorobenzoic;2,3-Dichlorbenzoesure;2,3-dichloro-benzoicaci;2,3-DICHLOROBENZOIC ACID pure;2,3-Dichlorobe;TIMTEC-BB SBB003641;RARECHEM AL BO 0323;2,3-dichlorobenzoate;3-Dichlorobenzoic acid;2,3-Dichorobenzoic acid
CBNumber: CB5227477
Molecular Formula: C7H4Cl2O2
Formula Weight: 191.01
MOL File: 50-45-3.mol

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2,3-Dichlorobenzoic acid Property

Melting point:: 168-170 °C (lit.)
Boiling point:: 273.68°C (rough estimate)
Density: 1.4410 (rough estimate)
refractive index: 1.4590 (estimate)
storage temp.: Sealed in dry,Room Temperature
solubility: Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)
pka: 2.53±0.25(Predicted)
color: White to Off-White
Water Solubility: slightly soluble
BRN: 1946217
InChI: InChI=1S/C7H4Cl2O2/c8-5-3-1-2-4(6(5)9)7(10)11/h1-3H,(H,10,11)
InChIKey: QAOJBHRZQQDFHA-UHFFFAOYSA-N
SMILES: C(O)(=O)C1=CC=CC(Cl)=C1Cl
CAS DataBase Reference: 50-45-3(CAS DataBase Reference)
EPA Substance Registry System: 2,3-Dichlorobenzoic acid (50-45-3)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-37/39-36-24/25
WGK Germany: 2
RTECS: DG6475000
HazardClass: IRRITANT
HS Code: 29163990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

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

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: 225339
Product name: 2,3-Dichlorobenzoic acid
Purity: 97%
Packaging: 10g
Price: $38.6
Updated: 2024/03/01

Sigma-Aldrich

Product number: 1356778
Product name: Lamotrigine Related Compound B
Purity: United States Pharmacopeia (USP) Reference Standard
Packaging: 20mg
Price: $1490
Updated: 2024/03/01

TCI Chemical

Product number: D3319
Product name: 2,3-Dichlorobenzoic Acid
Purity: >98.0%(GC)(T)
Packaging: 5g
Price: $32
Updated: 2024/03/01

TCI Chemical

Product number: D3319
Product name: 2,3-Dichlorobenzoic Acid
Purity: >98.0%(GC)(T)
Packaging: 25g
Price: $95
Updated: 2024/03/01

Alfa Aesar

Product number: A10522
Product name: 2,3-Dichlorobenzoic acid, 98%
Packaging: 10g
Price: $62.65
Updated: 2024/03/01

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2,3-Dichlorobenzoic acid Chemical Properties,Usage,Production

Chemical Properties

white to light yellow crystal powder

Uses

2,3-Dichlorobenzoic acid is the key intermediate for antiepileptic drug Lamotrigine (L173250) and other pharmaceuticals for the treatment of central nervous system (CNS) disorders and disease.

Definition

ChEBI: 2,3-dichlorobenzoic acid is a chlorobenzoic acid that is benzoic acid in which the ring hydrogens at positions 2 and 3 are substituted by chloro groups. It has a role as an impurity and a bacterial xenobiotic metabolite. It is a chlorobenzoic acid and a dichlorobenzene. It is functionally related to a benzoic acid. It is a conjugate acid of a 2,3-dichlorobenzoate.

General Description

2,3-Dichlorobenzoic acid is an intermediate metabolite of polychlorinated biphenyls (PCBs).

Synthesis

2,3-Dichlorobenzoic acid was prepared from 2,3-dichloroaniline by diazotization and Myerwine reaction to 2,3-dichlorobenzaldehyde, and then oxidized by potassium permanganate, with an overall yield of 45%.
Another synthesis of 2,3-dichlorobenzoic acid:
Step (a) A solution of 2,3-dichloroiodobenzene in sodium dried ether was added dropwise to magnesium turnings and a crystal of iodine with warming so as to form a Grignard reagent.
Step (b) The mixture of Step (a) was stirred and refluxed then cooled and transferred dropwise, under nitrogen, into a stirred mixture of sodium dried ether containing solid carbon dioxide.
Step (c) The mixture of Step (b) was stirred for 2 hours, left overnight to warm to room temperature, then treated with ice and aqueous hydrochloric acid, and the product extracted with ether. The combined ether extracts were washed with water then repeatedly extracted with an aqueous sodium hydroxide. These basic solutions were combined, stirred with activated charcoal for 10 minutes, filtered and the cooled filtrate was acidified with concentrated hydrochloric acid at lO.degree. C.
Step (d) The resultant solid was filtered off, washed with water (2.times.20 mis) and dried in vacuo. Yield 77.6%.

Purification Methods

Aromatic acid impurities (to <0.05%) can be removed via the (±)--methylbenzylamine salt as described for 2,4-dichlorobenzoic acid [Ley & Yates Organic Process Research & Development 12 120 2008.] Crystallise the acid from H2O, aqueous EtOH, or 30% aqueous AcOH and several times from *C6H6, then dry it in vacuo at 40o overnight. The methyl ester has m 35-39o . [Hope & Riley J Chem Soc 123 2478 1923, Lock Monatsh Chem 90 687 1959, Shorter & Mather J Chem Soc 4744 1961, Beilstein 9 II 228, 9 IV 998.]

2,3-Dichlorobenzoic acid Preparation Products And Raw materials

Raw materials

Preparation Products

Lamotrigine

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View Lastest Price from 2,3-Dichlorobenzoic acid manufacturers

Speranza Chemical Co., Ltd.

Product: 2,3-Dichlorobenzoic acid 50-45-3
Price: US $30.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 300MT/year
Release date: 2019-12-24

Hebei Chuanghai Biotechnology Co,.LTD

Product: 2,3-Dichlorobenzoic acid 50-45-3
Price: US $9.00/KG
Min. Order: 1KG
Purity: 99.9
Supply Ability: 1 ton
Release date: 2024-08-21

Hebei Mojin Biotechnology Co., Ltd

Product: 2,3-Dichlorobenzoic acid 50-45-3
Price: US $0.00/Kg/Bag
Min. Order: 1Kg/Bag
Purity: 99%
Supply Ability: 5000kg/month
Release date: 2021-10-13

50-45-3, 2,3-Dichlorobenzoic acidRelated Search:

3,5-DICHLOROBENZOIC ACID 2',4'-Dichloroacetophenone 1,3-Dichlorobenzene 1,2-Dichloroethane 4-Aminobenzoic acid Benzoic acid 4-Nitrobenzoic acid Citric acid Ethyl 2-(Chlorosulfonyl)acetate 1,2-Dichloro-4-(chloromethyl)benzene Estradiol benzoate 2,4-Dichlorobenzoic acid Folic acid Lamotrigine Impurity 4 3-Dechloro-4-chloro Lamotrigine LaMotrigine Related CoMpound C (Z)-[cyano(2,3-dichlorophenyl)methylene]carbazamidine Lamotrigine Impurity 6

Lamotrigine Related Compound B (USP)

2,3Dichlorobenzoic acid (Lamotrigine Related Compound B)

2,3-dichloro-benzoicaci

RARECHEM AL BO 0323

TIMTEC-BB SBB003641

2,3-DICHLOROBENZOIC ACID

2,3-DICHLOROBENZOIC ACID PESTANAL, 250 M

2,3-Dichlorobenzoicacid,98%

2,3-Dichlorobenzoic

2,3-Dichlorbenzoesure

Benzoic acid, 2,3-dichloro-

3-Dichlorobenzoic acid

Lamotrigine Related Compound B (20 mg) (2,3-dichlorobenzoic acid)

2,3-DICHLOROBENZOIC ACID pure

2,3-Dichlorobe

Lamotrigine Impurity E (2,3-Dichlorobenzoic Acid)

2,3-Dichorobenzoic acid

LaMotrigine Related CoMpound B

Lamotrigine impurity E (PhEur)

Lamotrigine EP impurity E

2,3-dichlorobenzoate

Lamotrigine impurity E CRS

2,3-DichlorobenzoicAcid&gt

Lamotrigine EP Impurity E (2,3-Dichlorobenzoic Acid)

Lamotrigine Impurity 4 (Lamotrigine EP Impurity E)

Lamotrigine EP Impurity E/ Lamotrigine Related Compound B

Lamotrigine Impurity EQ: What is Lamotrigine Impurity E Q: What is the CAS Number of Lamotrigine Impurity E Q: What is the storage condition of Lamotrigine Impurity E

Lamotrigine Related Compound B (2,3-dichlorobenzoic acid) (1356778)

Lamotrigine USP Related Compound B

Lamotrigine EP Impurity E (Lamotrigine USP Related Compound B)

Lamotrigine EP Impurity-E / Lamotrigine Relaed Compound-B

50-45-3

50-46-3

50-43-3

HOOCC6H3Cl2

C7H3Cl2O2

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Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts

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