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Aromatics

M-Xylene

Also known as 1,3-Dimethylbenzene, 1,3-Xylene, meta-Xylene

CAS 108-38-3Formula C8H10Molar mass 106.17 g/molEC 203-576-3
GHS signal word: Warning. Pictograms: Flammable, Harmful or irritant 67 suppliers listed
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M-Xylene chemical structure, C8H10, CAS 108-38-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Clear, colorless liquid
Melting point
-47.9 °C
Boiling point
139.1 °C
Density
0.8698 g/cm³ at 25 °C
Flash point
25 °C
HS code
290242
Category
Aromatics
UN number
UN 1307
Illustrative photo, clear colourless liquid in a glass reagent bottle on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is M-Xylene?

Plain description, key identifiers and synonyms

M-xylene is a xylene carrying methyl groups at positions 1 and 3.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1,3-xylene
CAS number
108-38-3 CAS number cross-checked
EC number
203-576-3
Molecular formula
C8H10
UNII
O9XS864HTE
MDL number
MFCD00008536
InChIKey
IVSZLXZYQVIEFR-UHFFFAOYSA-N
InChI
InChI=1S/C8H10/c1-7-4-3-5-8(2)6-7/h3-6H,1-2H3
SMILES (canonical and isomeric)
CC1=CC(=CC=C1)C

Synonyms

  • 1,3-Dimethylbenzene
  • 1,3-Xylene
  • meta-Xylene
  • m-Dimethylbenzene
  • m-Xylol
  • m-Methyltoluene
  • Benzene, 1,3-dimethyl-
  • 3-Xylene
  • 1,3-Dimethylbenzol
  • m-Xylenes
  • 2,4-Xylene
  • m-Xylene-alpha,alpha'-13c2
  • Xylene, m-
  • Benzene, m-dimethyl-
  • metaxylene
  • M xylene
  • m-Xylene Standard
  • 1,3-dimethyl-benzene
  • m-Xylene [UN1307] [Flammable liquid]
  • m-Xylene, analytical standard
  • Benzene,1,3-dimethyl
  • m-Xylene, anhydrous, >=99%
  • m-Xylene, for synthesis, 99%
  • m-Xylene, ReagentPlus(R), 99%
  • m-Xylene 10 microg/mL in Methanol
Show all 30 synonyms
  • m-Xylene 100 microg/mL in Methanol
  • m-Xylene, SAJ first grade, >=98.5%
  • m-Xylene, puriss. p.a., >=99.0% (GC)
  • 1,3-Dimethylbenzene(Discontinued,See C4X-105685)
  • m-Xylene, Pharmaceutical Secondary Standard, Certified Reference Material

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

Appearance
Clear, colorless liquidexp.
Odour
Sweet odorexp.
Taste
Taste threshold: 0.3 ppmexp.
Melting point
-47.9 °Cexp.
Boiling point
139.1 °Cexp.
Density
0.8698 g/cm³ at 25 °Cexp.
Flash point
25 °Cexp.
Autoignition temperature
527 °Cexp.
Solubility
In water, 1.61 × 10⁺² mg/L at 25 °C.exp.
Vapour pressure
8.29 mm Hg at 25 °Cexp.

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
106.17 g/molcalc.
Exact mass
106.0783 Dacalc.
LogP (octanol/water)
2.3calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
8calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.25calc.
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
GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant
320NFPA 704 rating

Hazard statements

  • H226Flammable liquid and vapour.
  • H312Harmful in contact with skin.
  • H315Causes skin irritation.
  • H332Harmful if inhaled.
Precautionary statements (20)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • 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.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1307
Transport hazard class
3
Packing group
III

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

M-Xylene suppliers

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

All 67 suppliers
30 of 30 offers

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

67 suppliers in 11 countries

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M-Xylene price

Indicative price range per kg from live supplier offers

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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

Solvent, intermediate for dyes and organic synthesis, especially isophthallic acid, insecticides, aviation fuel.

Most of the MX (3-xylene) that is contained in recovered mixed xylenes is isomerized to PX (4-xylene) and OX (2-xylene). MX is also used to produce isophthalic acid and isophthalonitrile.

M-Xylene is used in the manufacturing of polyester and alkyl resins.

Used as a chemical intermediate for the synthesis of 5-t-butyl-m-xylene, 3,5-di-(trifluoromethyl)aniline, isophthalic acid, isophthalodinitrile, 3-(trifluoromethyl)-benzoyl fluoride, 3,5-xylenol, 2,4-xylidine, 2,6-xylidine.

Industrial uses: Fuel agents, Solvent, Intermediate.

Consumer uses: Solvent, Intermediate.

How it is made

The Mitsubishi Gas-Chemical Company (MGCC) has commercialized a process for separating and producing high purity MX (3-xylene). In addition to producing MX, this process greatly simplifies the separation of the remaining C8 aromatic isomers. This process is based on the formation of a complex between MX and HF-BF3. MX is the most basic xylene and its complex with HF-BF3 is the most stable. The relative basicities of MX, OX (2-xylene), PX (4-xylene), and EB (ethylbenzene) are 100, 2, 1, and 0.14, respectively.

Read more

MX of >99% purity can be obtained with the MGCC process with <1% MX left in the raffinate by phase separation of hydrocarbon layer from the complex-HF layer. The latter undergoes thermal decomposition, which liberates the components of the complex.

Xylene is produced primarily by the catalytic reforming of naphtha streams, which are rich in alicyclic hydrocarbons. The aromatic reformate fractions consist mainly of benzene, toluene and mixed xylenes, xylenes representing the largest fraction. The xylene isomers are separated from the reformate by extraction and distillation on the basis of differences in boiling point ... 4-xylene is separated by continuous crystallization or adsorption from the mixed xylenes or isomerized from the 3-xylene/4-xylene distillate, 3-xylene is obtained by selective crystallization or solvent extraction of meta-para mixtures.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 601-022-00-9[3]

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code M-Xylene is traded under.

HS 2902.42Exact HS code

Cyclic hydrocarbons: m-xylene

World exports in 2024
$39.2M
−20.4% vs 2023, imports $161M
2019 to 2024
Top exporters
  1. Japan81.0%
  2. China6.6%
  3. Belgium5.0%
Top importers
  1. United States42.6%
  2. Netherlands32.1%
  3. China9.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for M-Xylene is indicative (it was matched by name in the HS nomenclature). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about M-Xylene, based on the data on this page

What is M-Xylene?

M-xylene is a xylene carrying methyl groups at positions 1 and 3.

What is the CAS number of M-Xylene?

The CAS registry number of M-Xylene is 108-38-3.

What is the molecular formula and weight of M-Xylene?

The molecular formula of M-Xylene is C8H10 and its molar mass is 106.17 g/mol.

What is M-Xylene used for?

Solvent, intermediate for dyes and organic synthesis, especially isophthallic acid, insecticides, aviation fuel. Most of the MX (3-xylene) that is contained in recovered mixed xylenes is isomerized to PX (4-xylene) and OX (2-xylene). MX is also used to produce isophthalic acid and isophthalonitrile.

Is M-Xylene hazardous?

M-Xylene carries the GHS signal word "Warning". Main hazards: flammable liquid and vapour, harmful in contact with skin, causes skin irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of M-Xylene?

M-Xylene is usually classified under HS code 290242 (M-Xylene). This is indicative, confirm it with your customs broker before shipping.

Where can I buy M-Xylene?

CompoundList lists 67 suppliers of M-Xylene in United States, China, India, Japan and 7 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy M-Xylene in India?

11 suppliers in India list M-Xylene on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of M-Xylene?

Suppliers quote M-Xylene 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 M-Xylene

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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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