3,5-Dichloro-2-hydroxybenzoic acid

Modify Date: 2026-07-01 16:54:19

3,5-Dichloro-2-hydroxybenzoic acid Structure
3,5-Dichloro-2-hydroxybenzoic acid structure
Common Name 3,5-Dichloro-2-hydroxybenzoic acid
CAS Number 320-72-9 Molecular Weight 207.011
Density 1.7±0.1 g/cm3 Boiling Point 319.3±42.0 °C at 760 mmHg
Molecular Formula C7H4Cl2O3 Melting Point 221-224 °C
MSDS Chinese USA Flash Point 146.9±27.9 °C
Symbol GHS07
GHS07
Signal Word Warning

 Names

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

Name 3,5-dichloro-2-hydroxybenzoic acid
Synonym More Synonyms

 Chemical & Physical Properties

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

Density 1.7±0.1 g/cm3
Boiling Point 319.3±42.0 °C at 760 mmHg
Melting Point 221-224 °C
Molecular Formula C7H4Cl2O3
Molecular Weight 207.011
Flash Point 146.9±27.9 °C
Exact Mass 205.953751
PSA 57.53000
LogP 4.40
Vapour Pressure 0.0±0.7 mmHg at 25°C
Index of Refraction 1.641
InChIKey CNJGWCQEGROXEE-UHFFFAOYSA-N
SMILES O=C(O)c1cc(Cl)cc(Cl)c1O

 MSDS

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

 Toxicological Information

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

CHEMICAL IDENTIFICATION

RTECS NUMBER :
VO2450000
CHEMICAL NAME :
Salicylic acid, 3,5-dichloro-
CAS REGISTRY NUMBER :
320-72-9
BEILSTEIN REFERENCE NO. :
2210803
LAST UPDATED :
199709
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C7-H4-Cl2-O3
MOLECULAR WEIGHT :
207.01
WISWESSER LINE NOTATION :
QVR BQ CG EG

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
50 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD277-689

 Safety Information

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

Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H315-H319-H335
Precautionary Statements P261-P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xn:Harmful;
Risk Phrases R22;R36/37/38
Safety Phrases S37/39-S26
RIDADR NONH for all modes of transport
RTECS VO2450000
HS Code 2918290000

 Synthetic Route

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

 Customs

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

HS Code 2918290000
Summary HS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0%

 Articles2

More Articles

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

Spectral deciphering of the interaction between an intramolecular hydrogen bonded ESIPT drug, 3,5-dichlorosalicylic acid, and a model transport protein.

Phys. Chem. Chem. Phys. 14(25) , 8892-902, (2012)

The present work demonstrates a detailed characterization of the interaction of a bio-active drug molecule 3,5-dichlorosalicyclic acid (3,5DCSA) with a model transport protein Bovine Serum Albumin (BS...

Structure of aldehyde reductase in ternary complex with coenzyme and the potent 20alpha-hydroxysteroid dehydrogenase inhibitor 3,5-dichlorosalicylic acid: implications for inhibitor binding and selectivity.

Arch. Biochem. Biophys. 479(1) , 82-7, (2008)

The structure of aldehyde reductase (ALR1) in ternary complex with the coenzyme NADPH and 3,5-dichlorosalicylic acid (DCL), a potent inhibitor of human 20alpha-hydroxysteroid dehydrogenase (AKR1C1), w...

 Synonyms

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

3,5-Cl2salH
3,5-Dichlorosalicylic acid
Salicylic acid,3,5-dichloro
Benzoic acid,3,5-dichloro-2-hydroxy
USAF DO-68
EINECS 206-281-8
2-Hydroxy-3,5-dichlorobenzoic acid
3,5-dichloro-2-hydroxy-benzoic acid
3,5-Dichloro-2-hydroxybenzoic acid
MFCD00002442

 3,5-Dichloro-2-hydroxybenzoic acid | FAQ

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 3,5-dichloro-2-hydroxybenzoic acid?
A: The English name of 3,5-dichloro-2-hydroxybenzoic acid is 3,5-dichloro-2-hydroxybenzoic acid.
Q: What is the molecular weight of 3,5-dichloro-2-hydroxybenzoic acid?
A: Molecular weight of 3,5-dichloro-2-hydroxybenzoic acid is 207.011.
Q: What is the LogP of 3,5-dichloro-2-hydroxybenzoic acid?
A: LogP of 3,5-dichloro-2-hydroxybenzoic acid is 4.40.
Q: What is the safety information for 3,5-dichloro-2-hydroxybenzoic acid?
A: Safety information for 3,5-dichloro-2-hydroxybenzoic acid: S37/39-S26.
Q: What is the boiling point of 3,5-dichloro-2-hydroxybenzoic acid?
A: Boiling point of 3,5-dichloro-2-hydroxybenzoic acid is 319.3±42.0 °C at 760 mmHg.
Q: What is the InChIKey of 3,5-dichloro-2-hydroxybenzoic acid?
A: InChIKey of 3,5-dichloro-2-hydroxybenzoic acid is CNJGWCQEGROXEE-UHFFFAOYSA-N.
Q: What are the downstream products of 3,5-dichloro-2-hydroxybenzoic acid?
A: Related downstream products(CAS) of 3,5-dichloro-2-hydroxybenzoic acid: 4524-78-1;40932-60-3;2040-83-7;30431-50-6;2577-72-2;30431-53-9;95-95-4;609-89-2;58-90-2;13340-60-8.
Q: What is the melting point of 3,5-dichloro-2-hydroxybenzoic acid?
A: Melting point of 3,5-dichloro-2-hydroxybenzoic acid is 221-224 °C.
Q: What English synonyms does 3,5-dichloro-2-hydroxybenzoic acid have?
A: English synonyms of 3,5-dichloro-2-hydroxybenzoic acid: 3,5-Cl2salH, 3,5-Dichlorosalicylic acid, Salicylic acid,3,5-dichloro, Benzoic acid,3,5-dichloro-2-hydroxy, USAF DO-68, EINECS 206-281-8, 2-Hydroxy-3,5-dichlorobenzoic acid, 3,5-dichloro-2-hydroxy-benzoic acid, 3,5-Dichloro-2-hydroxybenzoic acid, MFCD00002442.
Q: What is the SMILES notation of 3,5-dichloro-2-hydroxybenzoic acid?
A: SMILES notation of 3,5-dichloro-2-hydroxybenzoic acid is O=C(O)c1cc(Cl)cc(Cl)c1O.

 3,5-Dichloro-2-hydroxybenzoic acidfactory

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

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
Henan Tianfu Chemical Co., Ltd.
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