CAS 71-43-2

Benzene

苯

C6H6MW 78.114 g/molHS 290220 UN1114 · Class 3 · PG II

From the buying desk

CMR Category 1A carcinogen. EU REACH Annex XVII restricts use as a solvent in mixtures. US TSCA Section 6 active risk evaluation. Ships in stainless ISO tanks; specialty handling requirements meaningful. Most downstream uses (styrene, cumene, cyclohexane) consume the benzene at the producer site rather than shipping it.

Import Card

Before you order benzene from China, see its register listing, the duty, anti dumping cases and a supplier check on one card, each with its source and date.

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Identifiers

Synonyms
Cyclohexa-1,3,5-triene, Benzol
Formula
C6H6
Molecular weight
78.114 g/mol
SMILES
c1ccccc1
InChIKey
UHOVQNZJYSORNB-UHFFFAOYSA-N
HS code (6-digit)
290220

Transport and hazard profile

Transport classification, UN number UN1114, IMDG Class 3, Packing Group II.

GHS hazard statements, Danger. H-codes, H225, H304, H315, H319, H340, H350, H372. Refer to the substance SDS Section 2 for the full classification.

US and Australian rules for Benzene

Read from the official lists by CAS 71-43-2. Screening only: check the source before you ship, store or report.

California Prop 65

Listed

Listed for cancer on February 27, 1987, with a safe harbor level given on the OEHHA list.

Listed for developmental toxicity and male reproductive toxicity on December 26, 1997, with a safe harbor level given on the OEHHA list.

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OSHA exposure limit

Listed

Table Z-1: Listed without a number in the table. The limit is in a footnote or a standard for this substance, so check the table.

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Australian exposure standard

Listed

1 ppm, 3.2 mg/m³ as an 8 hour average.

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CERCLA reportable quantity

Listed

Reportable quantity 10 lb (4.54 kg). A package holding this much needs RQ on the shipping paper.

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EPCRA Tier II threshold

No entry

Not on the Extremely Hazardous Substances list, so the general 10,000 lb Tier II threshold applies where an SDS is required.

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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
Restricted

Annex XVII Entry 5: SVHC, very tight restrictions on use as solvent

US TSCA
Restricted

TSCA Section 6 active risk evaluation; downstream use restrictions emerging

China IECSC
Listed
Korea K-REACH
Listed
Australia AICIS
Listed

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

Common applications

  • · Styrene production (via ethylbenzene)
  • · Cumene (phenol/acetone upstream)
  • · Cyclohexane (nylon upstream)
  • · Aniline production

Typical Chinese supplier geography

Major Chinese capacity sits in Liaoning, Shandong, Jiangsu. 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 Benzene 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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Read next

Where this substance shows up across Sourzi

Referenced in

22 pages across the Sourzi moat

This term shows up in 5 regulatory pages, 1 topic clusters, 16 chemical parks. Sample backlinks per content type below.

Regulatory (5)

Plus 2 more regulatory pages.

Topic cluster (1)

Park (16)

Plus 13 more chemical parks.

Free download

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