CAS reference

Xylene (mixed isomers)

混合二甲苯

Mixed isomers (o-, m-, p-xylene) ship together. Para-xylene is the high-value isomer used for PTA upstream; m-xylene and o-xylene have smaller markets. Class 3 flammable, lower flash point category. Ships in stainless ISO tanks.

CAS 1330-20-7 ·C8H10 ·MW 106.165 g/mol ·HS 290244

Identifiers

Synonyms
Mixed xylenes, Dimethylbenzene, Xylol
Formula
C8H10
Molecular weight
106.165 g/mol
SMILES
Cc1ccccc1C
InChIKey
CTQNGGLPUBDAKN-UHFFFAOYSA-N
HS code (6-digit)
290244

Transport and hazard profile

Transport classification, UN number UN1307, IMDG Class 3, Packing Group III.

GHS hazard statements, Warning. H-codes, H226, H304, H312, H315, H332, H335. Refer to the substance SDS Section 2 for the full classification.

Regulatory profile across 5 jurisdictions

Verified against ECHA, US EPA TSCA Inventory, MEE China IECSC, NIER K-REACH, and AICIS AIIC. Last verification 2026-04-30. Confirm with the regulator portal before any shipping decision.

EU REACH
Listed
US TSCA
Listed
China IECSC
Listed
Korea K-REACH
Listed
Australia AICIS
Listed

Look up other substances at the REACH / TSCA cross-jurisdiction checker.

Common applications

  • · Para-xylene → PTA → polyester
  • · Solvent (paints, lacquers)
  • · Phthalic anhydride (via o-xylene)
  • · Isophthalic acid (via m-xylene)

Typical Chinese supplier geography

Major Chinese capacity sits in Liaoning, Zhejiang, Shandong. Coastal producers (Shandong, Jiangsu, Zhejiang) typically dominate export volume because of port access; inland producers (Inner Mongolia, Xinjiang, Shaanxi) compete on raw-material cost but add inland-rail or trucking cost to reach the coast.

Sourcing documentation chain

Every shipment of Xylene (mixed isomers) from China should include a per-batch COA, a current SDS per GB/T 17519 on the China side and the destination jurisdiction's standard on the import side, a packing list, a bill of lading, and a certificate of origin plus an MSA China DG packing certificate. For Incoterms reference see FOB, CIF, and CFR.

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