Molekula
p-Xylene
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
**p-Xylene** is a colorless, aromatic hydrocarbon used primarily as a precursor in the production of terephthalic acid (for polyester fibers and PET plastics) and as a solvent. It’s also a key component in gasoline blending and organic synthesis. This chemical has a CAS number of 106-42-3, a molecular formula of C6H4-1,4-(CH3)2, and a molecular weight of 106.17 g/mol. It is stored at ambient conditions but carries a **Danger** signal word due to its flammability and potential health hazards. Molekula supplies p-xylene from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Clear liquid and sediment free |
| Colour (Pt-Co) | ≤10 |
| Chloride (Cl-) | ≤1ppm |
| Purity | ≥99.7% |
| Relative density | 0,860 - 0.870 |
| Toluene | ≤0.1% |
| Bromine index | ≤200 mg/100gm |
| Ethylbenzene | ≤0.20% |
| Acid Wash Colour | ≤5.0 |
| Sulphur (S) | ≤1ppm |
| Nitrogen (N) | ≤1.0ppm |
| Meta-xylene | ≤0.20% |
| Ortho-xylene | ≤0.10% |
| Non-Aromatic | ≤0.10% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 27 °C |
| Transport Class | 3 |
| Packing Group | III |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless plates or prisms at low temp |
| Odour | Sweet |
| Melting Point | 13.3 °C |
| Boiling Point | 138.3 °C |
| Density | 0.86 (relative, water = 1) |
| Water Solubility | 162 mg/L at 25 °C |
| Solubility (other solvents) | Miscible in alcohol, ether, acetone, benzene; soluble in chloroform |
| Vapour Pressure | 0.9 kPa at 20 °C |
| Refractive Index | 1.49575 |
| log P (octanol/water) | 3.15 |
Source: PubChem CID 7809 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90028676 |
| CAS Number | 106-42-3 |
| IUPAC Name | 1,4-xylene |
| EC Number | 203-396-5 |
| Molecular Formula | C6H4-1,4-(CH3)2 |
| Molecular Weight | 106.17 |
| Exact Mass | 106.0783 |
| SMILES | CC1=CC=C(C=C1)C |
| InChIKey | URLKBWYHVLBVBO-UHFFFAOYSA-N |
| InChI | InChI=1S/C8H10/c1-7-3-5-8(2)6-4-7/h3-6H,1-2H3 |
| PubChem CID | 7809 |
| UN Number | UN1307 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29024300 |
| Tariff Code | 2902430000 |
Safety & GHS
-
Flammable
GHS02
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H226 Flammable liquid and vapour
- H304 May be fatal if swallowed and enters airways
- H312+H332 Harmful in contact with skin or inhaled
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P301+330 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- P302+352 IF ON SKIN: Wash with soap and water
- P304+341 IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1,4-Dimethylbenzene
- 1,4-Xylene
- 4-Methyltoluene
- 4-Xylene
- Benzene, 1,4-dimethyl-
- Chromar
- p-Dimethylbenzene
- p-Methyltoluene
- p-Xylol
- Para-Xylene
Frequently asked questions
What is p-Xylene commonly used for?
p-Xylene is primarily used as a precursor for the production of terephthalic acid (TPA) and dimethyl terephthalate (DMT), key intermediates in polyester manufacturing, including PET plastics and fibers.
What is the chemical formula and molecular weight of p-Xylene?
The chemical formula of p-Xylene is **C₆H₄-1,4-(CH₃)₂**, and its molecular weight is **106.17 g/mol**.
What safety classification does p-Xylene fall under?
p-Xylene is classified with the **signal word 'Danger'** due to its flammability and potential health hazards.
What grades of p-Xylene does Molekula supply?
Molekula supplies **industrial-grade p-Xylene**, meeting standard specifications for chemical manufacturing and polymerization applications.
Can Molekula supply p-Xylene in bulk quantities?
Yes, Molekula can provide p-Xylene in **bulk quantities**, including drums, IBCs, and tanker loads, depending on customer requirements.
What documentation comes with a p-Xylene order?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a commercial invoice. Additional documentation, such as a Packing List, may be provided upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.