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Antibiotics and anti-infectives

Chlorquinaldol

Also known as 5,7-Dichloro-8-hydroxyquinaldine, 5,7-dichloro-2-methylquinolin-8-ol, Chloroquinaldol

CAS 72-80-0Formula C10H7Cl2NOMolar mass 228.08 g/molEC 200-789-3
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 20 suppliers listed
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Chlorquinaldol chemical structure, C10H7Cl2NO, CAS 72-80-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
72-80-0
Formula
C10H7Cl2NO
Molar mass
228.08 g/mol
EC number
200-789-3
HS code
293349
Category
Antibiotics and anti-infectives

What is Chlorquinaldol?

Plain description, key identifiers and synonyms

Chlorquinaldol is a monohydroxyquinoline that is quinolin-8-ol which is substituted by a methyl group at position 2 and by chlorine at positions 5 and 7. An antifungal and antibacterial, it was formerly used for topical treatment of skin conditions and vaginal infections. It has a role as an antiprotozoal drug, an antibacterial drug and an antiseptic drug. It is an organochlorine compound and a monohydroxyquinoline.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5,7-dichloro-2-methylquinolin-8-ol
CAS number
72-80-0 CAS number cross-checked
EC number
200-789-3
Molecular formula
C10H7Cl2NO
UNII
D6VHC87LLS
MDL number
MFCD00023984
InChIKey
GPTXWRGISTZRIO-UHFFFAOYSA-N
InChI
InChI=1S/C10H7Cl2NO/c1-5-2-3-6-7(11)4-8(12)10(14)9(6)13-5/h2-4,14H,1H3
SMILES (canonical and isomeric)
CC1=NC2=C(C=C1)C(=CC(=C2O)Cl)Cl

Synonyms

  • 5,7-Dichloro-8-hydroxyquinaldine
  • 5,7-dichloro-2-methylquinolin-8-ol
  • Chloroquinaldol
  • 5,7-Dichloro-8-hydroxy-2-methylquinoline
  • 5,7-Dichloro-2-methyl-8-quinolinol
  • Clorquinaldol
  • Steroxin
  • Chlorquinaldolum
  • 5,7-Dichloro-8-quinaldinol
  • Chlorchinaldol
  • Clorchinaldolo
  • 5,7-Dichloro-2-methyl-8-hydroxyquinoline
  • 2-methyl-5,7-dichloro-8-hydroxyquinoline
  • Chlorchinaldine
  • 5,7 Dichloro 2 methyl 8 quinolinol
  • Sterosan
  • Siogene
  • Siosteran
  • Gyno-sterosan
  • Siasteran
  • Hydroxydichloroquinaldine
  • 8-Quinolinol, 5,7-dichloro-2-methyl-
  • 5,7-Dichloro-2-methyl-quinolin-8-ol
  • Chlorquinaldol (INN)
  • Chlorchinaldolum
Show all 36 synonyms
  • Chlorchinaldin
  • Chlorguinaldon
  • Chloquinan
  • Vagisteran
  • Florabina
  • Saprosan
  • Siogenal
  • Siogenon
  • Siosept
  • Sterozan
  • Siogen

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
228.08 g/molcalc.
Exact mass
226.9905 Dacalc.
LogP (octanol/water)
3.56calc.
Topological polar surface area
33.12 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
14calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.1calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccc2ncccc2c1

c1ccc2ncccc2c1

2 rings, 10 atoms, the Quinoline ring system.

21,766 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H317May cause an allergic skin reaction.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (23)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Chlorquinaldol suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 20 suppliers
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Where suppliers are based

20 suppliers in 5 countries

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Chlorquinaldol price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Pharmacological actions

  • Anti-Infective Agents

Roles

  • antiamoebic agent
  • antibacterial agent
  • antibacterial drug
  • antiinfective agent
  • antimicrobial agent
  • antimicrobial drug
  • antiparasitic agent
  • antiprotozoal drug
  • antiseptic drug
  • pharmaceutical

Pharmacology

Chlorquinaldol is a Standardized Chemical Allergen. The physiologic effect of chlorquinaldol is by means of Increased Histamine Release and Cell-mediated Immunity.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Chlorquinaldol is traded under.

HS 2933.49Indicative HS code

Compounds containing in the structure a quinoline or isoquinoline ring-system (whether…

World exports in 2024
$939M
−14.6% vs 2023, imports $1.48B
2019 to 2024
Top exporters
  1. China30.1%
  2. India * partner reported16.7%
  3. Switzerland * partner reported14.1%
Top importers
  1. United Kingdom19.2%
  2. Germany16.0%
  3. Romania8.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Chlorquinaldol is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Chlorquinaldol, based on the data on this page

What is Chlorquinaldol?

Chlorquinaldol is a monohydroxyquinoline that is quinolin-8-ol which is substituted by a methyl group at position 2 and by chlorine at positions 5 and 7. An antifungal and antibacterial, it was formerly used for topical treatment of skin conditions and vaginal infections.

What is the CAS number of Chlorquinaldol?

The CAS registry number of Chlorquinaldol is 72-80-0.

What is the molecular formula and weight of Chlorquinaldol?

The molecular formula of Chlorquinaldol is C10H7Cl2NO and its molar mass is 228.08 g/mol.

What is Chlorquinaldol used for?

Known uses and roles of Chlorquinaldol include antibacterials and antibiotics in pharmaceuticals, antiamoebic agent, antibacterial agent, antibacterial drug, antiinfective agent and 7 more.

Is Chlorquinaldol hazardous?

Chlorquinaldol carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes skin irritation, may cause an allergic skin reaction. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Chlorquinaldol?

Chlorquinaldol is usually classified under HS code 293349 (Compounds containing in the structure a quinoline or isoquinoline ring-system (whether…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Chlorquinaldol?

CompoundList lists 20 suppliers of Chlorquinaldol in China, United States, Germany, United Kingdom and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Chlorquinaldol?

Suppliers quote Chlorquinaldol on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Chlorquinaldol

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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