CAS 84-74-2

Dibutyl phthalate

邻苯二甲酸二丁酯

C16H22O4MW 278.348 g/molHS 291732

From the buying desk

EU REACH Annex XIV authorisation list (sunset 2015 except authorised uses). US TSCA Section 6 risk evaluation; consumer-product restrictions emerging. CMR Cat 1B reproductive toxin. International trade declining as substitutes (DEHT, DOTP) replace ortho-phthalates in regulated markets. Chinese supply still volume but for Asia/Africa/LatAm markets.

Import Card

Before you order dibutyl phthalate 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
DBP, n-Butyl phthalate, Bis(n-butyl) benzenedicarboxylate
Formula
C16H22O4
Molecular weight
278.348 g/mol
SMILES
CCCCOC(=O)c1ccccc1C(=O)OCCCC
InChIKey
DOIRQSBPFJWKBE-UHFFFAOYSA-N
HS code (6-digit)
291732

Transport and hazard profile

GHS hazard statements, Danger. H-codes, H360Df, H400. Refer to the substance SDS Section 2 for the full classification.

US and Australian rules for Dibutyl phthalate

Read from the official lists by CAS 84-74-2. Screening only: check the source before you ship, store or report.

California Prop 65

Listed

Listed for developmental toxicity, female reproductive toxicity and male reproductive toxicity on December 2, 2005, with a safe harbor level of 8.7 µg a day.

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OSHA exposure limit

Listed

Table Z-1: 5 mg/m³ as an 8 hour average.

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Australian exposure standard

Listed

5 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 XIV Authorisation List + SVHC

US TSCA
Restricted

TSCA Section 6 risk evaluation; consumer-product restrictions

China IECSC
Listed
Korea K-REACH
Listed
Australia AICIS
Listed

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

Common applications

  • · PVC plasticiser (legacy)
  • · Adhesives and sealants (legacy)
  • · Printing inks (declining)
  • · Cellulose nitrate film (legacy)

Typical Chinese supplier geography

Major Chinese capacity sits in 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 Dibutyl phthalate 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. For Incoterms reference see FOB, CIF, and CFR.

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Read next

Where this substance shows up across Sourzi

Referenced in

19 pages across the Sourzi moat

This term shows up in 5 regulatory pages, 14 chemical parks. Sample backlinks per content type below.

Regulatory (5)

Plus 2 more regulatory pages.

Park (14)

Plus 11 more chemical parks.

Free download

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