CAS 50-00-0

Formaldehyde

甲醛

CH2OMW 30.026 g/molHS 291211 UN2209 · Class 8 · PG III

From the buying desk

EU CMR Cat 1B carcinogen; US TSCA Section 6 active risk evaluation. Trade is overwhelmingly as 37 percent aqueous formalin solution stabilised with methanol. Most downstream use (urea-formaldehyde, melamine-formaldehyde, phenol-formaldehyde resin) consumes the formaldehyde at the producer site rather than shipping it.

Import Card

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

Identifiers

Synonyms
Methanal, Methylene oxide, Formalin (37% solution)
Formula
CH2O
Molecular weight
30.026 g/mol
SMILES
C=O
InChIKey
WSFSSNUMVMOOMR-UHFFFAOYSA-N
HS code (6-digit)
291211

Transport and hazard profile

Transport classification, UN number UN2209, IMDG Class 8, Packing Group III.

GHS hazard statements, Danger. H-codes, H301, H311, H314, H317, H331, H335, H341, H350, H370. Refer to the substance SDS Section 2 for the full classification.

US and Australian rules for Formaldehyde

Read from the official lists by CAS 50-00-0. Screening only: check the source before you ship, store or report.

California Prop 65

Listed

Listed for cancer on January 1, 1988, with a safe harbor level of 40 µg a day.

Open the tool · Official source

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, 1.2 mg/m³ as an 8 hour average, 2 ppm, 2.5 mg/m³ short term.

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CERCLA reportable quantity

Listed

Reportable quantity 100 lb (45.4 kg). A package holding this much needs RQ on the shipping paper.

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EPCRA Tier II threshold

Listed

An Extremely Hazardous Substance, so Tier II reporting starts at 500 lb on site.

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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 77: restricted in articles for consumer use, EU CMR Cat 1B

US TSCA
Restricted

Active TSCA Section 6 risk evaluation

China IECSC
Listed
Korea K-REACH
Listed
Australia AICIS
Listed

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

Common applications

  • · Urea-formaldehyde resin (particle board)
  • · Melamine-formaldehyde resin (laminate)
  • · Phenol-formaldehyde (plywood)
  • · Hexamine

Typical Chinese supplier geography

Major Chinese capacity sits in Shandong, Jiangsu, Henan. 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 Formaldehyde 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.

Sourcing Formaldehyde?

Tell us the chemical, grade and quantity. A person on our team in Shanghai sends you a real, checked factory, and your first one is free.

Free download

Free PDF: the MSDS verification template Sourzi runs against the supplier sheet for every CAS number we book out of China.