4,5-Dichlorocatechol

Modify Date: 2025-08-25 12:10:07

4,5-Dichlorocatechol structure	Common Name	4,5-Dichlorocatechol
	CAS Number	3428-24-8	Molecular Weight	179.001
	Density	1.6±0.1 g/cm3	Boiling Point	302.2±37.0 °C at 760 mmHg
	Molecular Formula	C₆H₄Cl₂O₂	Melting Point	110-115ºC(lit.)
	MSDS	Chinese USA	Flash Point	136.6±26.5 °C
	Symbol	GHS07, GHS09	Signal Word	Warning

Use of 4,5-Dichlorocatechol

4,5-Dichlorocatechol is a substrate of the broad-spectrum chlorocatechol 1,2-dioxygenase of pseudomonas chlororaphis RW71. The Ki values for 4,5-dichlorocatechol is 30 nM for the dioxygenase of the Chlorobenzoate-degrading strain Pseudomonas putida AC27 and 4 nM for the dioxygenase of Acidovorax sp. strain PS14[1].

Name	4,5-dichlorobenzene-1,2-diol
Synonym	More Synonyms

Description	4,5-Dichlorocatechol is a substrate of the broad-spectrum chlorocatechol 1,2-dioxygenase of pseudomonas chlororaphis RW71. The Ki values for 4,5-dichlorocatechol is 30 nM for the dioxygenase of the Chlorobenzoate-degrading strain Pseudomonas putida AC27 and 4 nM for the dioxygenase of Acidovorax sp. strain PS14[1].
Related Catalog	Research Areas >> Infection Signaling Pathways >> Others >> Others
References	[1]. T Potrawfke , et al. Chlorocatechols Substituted at Positions 4 and 5 Are Substrates of the Broad-Spectrum Chlorocatechol 1,2-dioxygenase of Pseudomonas Chlororaphis RW71. J Bacteriol. 2001 Feb;183(3):997-1011.

Density	1.6±0.1 g/cm3
Boiling Point	302.2±37.0 °C at 760 mmHg
Melting Point	110-115ºC(lit.)
Molecular Formula	C₆H₄Cl₂O₂
Molecular Weight	179.001
Flash Point	136.6±26.5 °C
Exact Mass	177.958832
PSA	40.46000
LogP	3.29
Vapour Pressure	0.0±0.7 mmHg at 25°C
Index of Refraction	1.642
Storage condition	-20°C

4,5-Dichlorocatechol MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UX1510000

CHEMICAL NAME :: Pyrocatechol, 4,5-dichloro-

CAS REGISTRY NUMBER :: 3428-24-8

BEILSTEIN REFERENCE NO. :: 2086136

LAST UPDATED :: 199710

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: C6-H4-Cl2-O2

MOLECULAR WEIGHT :: 179.00

WISWESSER LINE NOTATION :: QR BQ DG EG

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 42 mg/kg

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

MUTATION DATA

TYPE OF TEST :: Mutation in microorganisms

TEST SYSTEM :: Yeast - Saccharomyces cerevisiae

DOSE/DURATION :: 75 mg/L

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 119,273,1983

Symbol	GHS07, GHS09
Signal Word	Warning
Hazard Statements	H315-H319-H335-H400
Precautionary Statements	P261-P273-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi: Irritant;
Risk Phrases	36/37/38
Safety Phrases	S26;S36
RIDADR	UN 3077 9 / PGIII
RTECS	UX1510000
HS Code	2908199090

Precursor 10
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HS Code	2908199090
Summary	HS: 2908199090. derivatives of polyphenols or phenol-alcohols containing only halogen substituents and their salts. VAT:17.0%. tax rebate rate:9.0%. supervision conditions:None. MFN tariff:5.5%. general tariff:30.0%

Oxidation of catechols during positive ion electrospray mass spectrometric analysis: evidence for in-source oxidative dimerization.

Rapid Commun. Mass Spectrom. 28(20) , 2181-90, (2014)

Catechols are an important class of analytes occurring in many natural and synthetic products. Electrospray ionization in negative mode is the preferred way of ion generation for these compounds; howe...

Ormosil gels doped with engineered catechol 1,2 dioxygenases for chlorocatechol bioremediation.

Biotechnol. Appl. Biochem. 61(3) , 297-303, (2014)

Enzymes entrapped in wet, nanoporous silica gel have great potential as bioreactors for bioremediation because of their improved thermal, chemical, and mechanical stability with respect to enzymes in ...

Pyrocatechol,4,5-dichloro

4,5-DICHLOROCATECHOL

4,5-dichloroguaiacol

1,2-Benzenediol,4,5-dichloro

1,2-Benzenediol, 4,5-dichloro-

4,5-Dichloropyrocatechol

4,5-Dichloro-1,2-benzenediol

EINECS 222-331-1

MFCD00463757

4,5-dichlorobenzene-1,2-diol

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 4，5-Dichlorocatechol
Price: Check
Purity: 98.0%
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DC Chemicals Limited
China
Product Name: 4,5-Dichlorocatechol
Price: $Inquiry/250mg $Inquiry/100mg $Inquiry/1g
Purity: 98.0%
Delivery: 3 Day
Contact: Tony Cao
Email: sales@dcchemicals.com

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