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Polymers and thermoplastics

4-Methoxystyrene

Also known as 4-Vinylanisole, 1-ethenyl-4-methoxybenzene, 1-Methoxy-4-vinylbenzene

CAS 637-69-4Formula C9H10OMolar mass 134.18 g/molEC 211-298-9
GHS signal word: Warning. Pictograms: Harmful or irritant 8 suppliers listed
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4-Methoxystyrene chemical structure, C9H10O, CAS 637-69-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
637-69-4
Formula
C9H10O
Molar mass
134.18 g/mol
EC number
211-298-9
HS code
290930
Category
Polymers and thermoplastics

What is 4-Methoxystyrene?

Plain description, key identifiers and synonyms

4-vinylanisole has been reported in Ephedra sinica.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-ethenyl-4-methoxybenzene
CAS number
637-69-4 CAS number cross-checkedOther or deprecated CAS: 24936-44-5
EC number
211-298-9
Molecular formula
C9H10O
UNII
2ISH8T4A6E
MDL number
MFCD00008619
InChIKey
UAJRSHJHFRVGMG-UHFFFAOYSA-N
InChI
InChI=1S/C9H10O/c1-3-8-4-6-9(10-2)7-5-8/h3-7H,1H2,2H3
SMILES (canonical and isomeric)
COC1=CC=C(C=C1)C=C

Synonyms

  • 4-Vinylanisole
  • 1-ethenyl-4-methoxybenzene
  • 1-Methoxy-4-vinylbenzene
  • p-Methoxystyrene
  • Benzene, 1-ethenyl-4-methoxy-
  • p-Vinylanisole
  • Anisole, p-vinyl-
  • 1-methoxy-4-vinyl-benzene
  • 1-ethenyl-4-methoxy-benzene
  • 4-Methoxystyrene (stabilized with TBC)
  • Benzene, 1-ethenyl-4-methoxy-, homopolymer
  • 4-vinylanisol
  • p-methoxy-styrene
  • para-methoxystyrene
  • 4-vinyl anisole
  • 4-vinyl-anisole
  • 4-Vinylanisole,
  • 4-Vinylanisole, 97%
  • BB 0221046
  • 1-Methoxy-4-vinylbenzene #
  • 4-toluenesulfonic acid methyl ester
  • 4-Methoxystyrene - stabilized with 0.1% 4-tert-butylcatechol

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
134.18 g/molcalc.
Exact mass
134.0732 Dacalc.
LogP (octanol/water)
2.34calc.
Topological polar surface area
9.23 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
2calc.
Heavy atoms
10calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.11calc.
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

  • H227Combustible liquid.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
Precautionary statements (13)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • 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.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403Store in a well-ventilated place.
  • 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

4-Methoxystyrene suppliers

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

All 8 suppliers
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

8 suppliers in 3 countries

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4-Methoxystyrene price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Industries and functions

Functional uses

  • Fragrance

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 4-Methoxystyrene is traded under.

HS 2909.30Indicative HS code

Aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives

World exports in 2024
$470M
−2.2% vs 2023, imports $432M
2019 to 2024
Top exporters
  1. China45.7%
  2. Germany15.7%
  3. India * partner reported9.9%
Top importers
  1. United States14.3%
  2. China11.8%
  3. India * partner reported8.3%

* Partner reported figures, a lower bound.

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

The HS code shown for 4-Methoxystyrene is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 4-Methoxystyrene, based on the data on this page

What is 4-Methoxystyrene?

4-vinylanisole has been reported in Ephedra sinica.

What is the CAS number of 4-Methoxystyrene?

The CAS registry number of 4-Methoxystyrene is 637-69-4. Other or deprecated CAS numbers: 24936-44-5.

What is the molecular formula and weight of 4-Methoxystyrene?

The molecular formula of 4-Methoxystyrene is C9H10O and its molar mass is 134.18 g/mol.

What is 4-Methoxystyrene used for?

Known uses and roles of 4-Methoxystyrene include monomers in plastics and polymers and fragrance.

Is 4-Methoxystyrene hazardous?

4-Methoxystyrene carries the GHS signal word "Warning". Main hazards: combustible liquid, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 4-Methoxystyrene?

4-Methoxystyrene is usually classified under HS code 290930 (Aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 4-Methoxystyrene?

CompoundList lists 8 suppliers of 4-Methoxystyrene in China, United States and Russia. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 4-Methoxystyrene?

Suppliers quote 4-Methoxystyrene 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 4-Methoxystyrene

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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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