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Impurities and reference standards

3-Methoxycatechol

Also known as 3-methoxybenzene-1,2-diol, 3-Methoxypyrocatechol, 2,3-Dihydroxyanisole

CAS 934-00-9Formula C7H8O3Molar mass 140.14 g/molEC 213-276-4
GHS signal word: Warning. Pictograms: Harmful or irritant 6 suppliers listed
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3-Methoxycatechol chemical structure, C7H8O3, CAS 934-00-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
934-00-9
Formula
C7H8O3
Molar mass
140.14 g/mol
EC number
213-276-4
HS code
290950
Category
Impurities and reference standards

What is 3-Methoxycatechol?

Plain description, key identifiers and synonyms

3-methoxycatechol is a member of the class of catechols that is catechol in which a hydrogen that is ortho to one of the hydroxy groups has been replaced by a methoxy group. It displays agonistic activity against G protein-coupled receptor 35 (GPR35). It has a role as a G-protein-coupled receptor agonist. It is a member of catechols and an aromatic ether. It is functionally related to a pyrogallol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-methoxybenzene-1,2-diol
CAS number
934-00-9 CAS number cross-checkedOther or deprecated CAS: 145929-30-2
EC number
213-276-4
Molecular formula
C7H8O3
UNII
IC13U5393C
MDL number
MFCD00002191
InChIKey
LPYUENQFPVNPHY-UHFFFAOYSA-N
InChI
InChI=1S/C7H8O3/c1-10-6-4-2-3-5(8)7(6)9/h2-4,8-9H,1H3
SMILES (canonical and isomeric)
COC1=CC=CC(=C1O)O

Synonyms

  • 3-methoxybenzene-1,2-diol
  • 3-Methoxypyrocatechol
  • 2,3-Dihydroxyanisole
  • 1,2-Dihydroxy-3-methoxybenzene
  • 6-Methoxycatechol
  • Pyrogallol 1-methyl ether
  • 1,2-Benzenediol, 3-methoxy-
  • Pyrocatechol, 3-methoxy-
  • Pyrogallol 1-monomethyl ether
  • 1-O-Methylpyrogallol
  • 3-Methoxy-1,2-benzenediol
  • 3-Methoxy-o-hydroquinone
  • 3-methoxy-benzene-1,2-diol
  • 3-(methyloxy)benzene-1,2-diol
  • Pyrocatechol, 3-meth
  • Omeprazole Impurity 117
  • 3-Methoxycatechol, 99%
  • Pyrogallol monomethyl ether
  • DivK1c_007017
  • Sdccgmls-0066910.p001
  • meta-Substituted 3-methoxybenzene-1,2-diol
  • 2-3-4'-TRIHYDROXY-4-METHOXYBENZOPHENONE_met007

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
140.14 g/molcalc.
Exact mass
140.0473 Dacalc.
LogP (octanol/water)
1.11calc.
Topological polar surface area
49.69 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
1calc.
Heavy atoms
10calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.14calc.
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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 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

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • 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).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • 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

3-Methoxycatechol suppliers

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All 6 suppliers
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Where suppliers are based

6 suppliers in 4 countries

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3-Methoxycatechol price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Roles

  • G-protein-coupled receptor agonist
  • agonist

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 3-Methoxycatechol is traded under.

HS 2909.50Indicative HS code

Ether-phenols, ether-alcohol-phenols and their halogenated, sulphonated, nitrated or…

World exports in 2024
$284M
+11.9% vs 2023, imports $291M
2019 to 2024
Top exporters
  1. India * partner reported32.9%
  2. Indonesia17.7%
  3. France * partner reported11.2%
Top importers
  1. China20.7%
  2. United States12.0%
  3. Brazil6.8%

* Partner reported figures, a lower bound.

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

The HS code shown for 3-Methoxycatechol is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 3-Methoxycatechol, based on the data on this page

What is 3-Methoxycatechol?

3-methoxycatechol is a member of the class of catechols that is catechol in which a hydrogen that is ortho to one of the hydroxy groups has been replaced by a methoxy group. It displays agonistic activity against G protein-coupled receptor 35 (GPR35). It has a role as a G-protein-coupled receptor agonist.

What is the CAS number of 3-Methoxycatechol?

The CAS registry number of 3-Methoxycatechol is 934-00-9. Other or deprecated CAS numbers: 145929-30-2.

What is the molecular formula and weight of 3-Methoxycatechol?

The molecular formula of 3-Methoxycatechol is C7H8O3 and its molar mass is 140.14 g/mol.

What is 3-Methoxycatechol used for?

Known uses and roles of 3-Methoxycatechol include g-protein-coupled receptor agonist and agonist.

Is 3-Methoxycatechol hazardous?

3-Methoxycatechol carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 3-Methoxycatechol?

3-Methoxycatechol is usually classified under HS code 290950 (Ether-phenols, ether-alcohol-phenols and their halogenated, sulphonated, nitrated or…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 3-Methoxycatechol?

CompoundList lists 6 suppliers of 3-Methoxycatechol in United States, Canada, China and Singapore. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 3-Methoxycatechol?

Suppliers quote 3-Methoxycatechol 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 3-Methoxycatechol

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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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