3,6-Dichlorosalicylic acid

Modify Date: 2026-07-14 12:03:59

3,6-Dichlorosalicylic acid Structure
3,6-Dichlorosalicylic acid structure
Common Name 3,6-Dichlorosalicylic acid
CAS Number 3401-80-7 Molecular Weight 207.01100
Density 1.665 g/cm3 Boiling Point 306.7ºC at 760 mmHg
Molecular Formula C7H4Cl2O3 Melting Point N/A
MSDS N/A Flash Point 139.3ºC

Summary: 3,6-Dichloro-2-hydroxybenzoic acid, also known as 3,6-Dichlorosalicylic acid, with CAS number 3401-80-7, has a molecular formula of C7H4Cl2O3 and a molecular weight of 207.01100. The boiling point is 306.7ºC, and it should be stored at room temperature in a dry environment. This compound is an intermediate in the synthesis of the herbicide dichlorophen. For research-use only, not for medical or clinical usage.


 Names

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

Name 3,6-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 1.665 g/cm3
Boiling Point 306.7ºC at 760 mmHg
Molecular Formula C7H4Cl2O3
Molecular Weight 207.01100
Flash Point 139.3ºC
Exact Mass 205.95400
PSA 57.53000
LogP 2.39720
Index of Refraction 1.641
InChIKey FKIKPQHMWFZFEB-UHFFFAOYSA-N
SMILES O=C(O)c1c(Cl)ccc(Cl)c1O

 Toxicological Information

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

CHEMICAL IDENTIFICATION

RTECS NUMBER :
VO2500000
CHEMICAL NAME :
Salicylic acid, 3,6-dichloro-
CAS REGISTRY NUMBER :
3401-80-7
BEILSTEIN REFERENCE NO. :
2938787
LAST UPDATED :
199701
DATA ITEMS CITED :
7
MOLECULAR FORMULA :
C7-H4-Cl2-O3
MOLECULAR WEIGHT :
207.01

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1560 mg/kg
TOXIC EFFECTS :
Brain and Coverings - recordings from specific areas of CNS
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 43(10),95,1978
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
660 mg/kg
TOXIC EFFECTS :
Brain and Coverings - recordings from specific areas of CNS
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 43(10),95,1978
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: PB85-143766
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
1800 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 25(9),55,1981 ** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
546 mg/kg/26W-I
TOXIC EFFECTS :
Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - catalases Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other oxidoreductases
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 43(10),95,1978
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
5230 ug/m3/26W-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - emphysema
REFERENCE :
GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 25(9),55,1981

 Safety Information

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

HS Code 2918290000

 Synthetic Route

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

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3,6-Dichlorosalicylic acid Structure

3,6-Dichlorosal...

CAS#:3401-80-7

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Literature: US4161611 A1, ;

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3,6-Dichlorosalicylic acid Structure

3,6-Dichlorosal...

CAS#:3401-80-7

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Literature: US4232172 A1, ;

~%

3,6-Dichlorosalicylic acid Structure

3,6-Dichlorosal...

CAS#:3401-80-7

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Literature: ACS Chemical Biology, , vol. 8, # 8 p. 1687 - 1691

 Precursor & DownStream

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor  4

DownStream  1

 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%

 3,6-Dichlorosalicylic acidBioassay

View more

This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Toxicity in po dosed Rattus norvegicus (rat)
Source: ChEMBL
Target: Rattus norvegicus
External Id: CHEMBL3059484
Name: Inhibition of dipeptidyl peptidase 4 (unknown origin)
Source: ChEMBL
Target: Dipeptidyl peptidase 4
External Id: CHEMBL3074800
Total 2, Current Page 1 of 1
1

 Synonyms

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

3,6-DICHLOROSALICYLIC ACID
2-Hydroxy-3,6-dichlorobenzoic acid
3,6-Dichlor-2-hydroxy-benzoesaeure
2-hydroxy-3,5-dichlorobenzoic acid
Benzoic acid,3,6-dichloro-2-hydroxy
EINECS 222-275-8
MFCD00155381
3,6-Dichloro-2-hydroxy-benzoic acid
Salicylic acid,3,6-dichloro
2-Oxy-3,6-dichlorobenzoic acid

 3,6-Dichlorosalicylic acid | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What English synonyms does 3,6-dichloro-2-hydroxybenzoic acid have?
A: English synonyms of 3,6-dichloro-2-hydroxybenzoic acid: 3,6-DICHLOROSALICYLIC ACID, 2-Hydroxy-3,6-dichlorobenzoic acid, 3,6-Dichlor-2-hydroxy-benzoesaeure, 2-hydroxy-3,5-dichlorobenzoic acid, Benzoic acid,3,6-dichloro-2-hydroxy, EINECS 222-275-8, MFCD00155381, 3,6-Dichloro-2-hydroxy-benzoic acid, Salicylic acid,3,6-dichloro, 2-Oxy-3,6-dichlorobenzoic acid.
Q: What is the InChIKey of 3,6-dichloro-2-hydroxybenzoic acid?
A: InChIKey of 3,6-dichloro-2-hydroxybenzoic acid is FKIKPQHMWFZFEB-UHFFFAOYSA-N.
Q: What is the boiling point of 3,6-dichloro-2-hydroxybenzoic acid?
A: Boiling point of 3,6-dichloro-2-hydroxybenzoic acid is 306.7ºC at 760 mmHg.
Q: What is the CAS number of 3,6-dichloro-2-hydroxybenzoic acid?
A: CAS number of 3,6-dichloro-2-hydroxybenzoic acid is 3401-80-7.
Q: What are the upstream materials of 3,6-dichloro-2-hydroxybenzoic acid?
A: Related upstream materials(CAS) of 3,6-dichloro-2-hydroxybenzoic acid: 60-29-7;583-78-8;68938-81-8;1918-00-9.
Q: What is the LogP of 3,6-dichloro-2-hydroxybenzoic acid?
A: LogP of 3,6-dichloro-2-hydroxybenzoic acid is 2.39720.
Q: What is the SMILES notation of 3,6-dichloro-2-hydroxybenzoic acid?
A: SMILES notation of 3,6-dichloro-2-hydroxybenzoic acid is O=C(O)c1c(Cl)ccc(Cl)c1O.
Q: What is the English name of 3,6-dichloro-2-hydroxybenzoic acid?
A: The English name of 3,6-dichloro-2-hydroxybenzoic acid is 3,6-dichloro-2-hydroxybenzoic acid.
Q: What is the molecular formula of 3,6-dichloro-2-hydroxybenzoic acid?
A: Molecular formula of 3,6-dichloro-2-hydroxybenzoic acid is C7H4Cl2O3.
Q: What is the polar surface area (PSA) of 3,6-dichloro-2-hydroxybenzoic acid?
A: Polar surface area (PSA) of 3,6-dichloro-2-hydroxybenzoic acid is 57.53000.

 3,6-Dichlorosalicylic 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.
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