CAS 111-42-2 · K-REACH · Republic of Korea

Diethanolamine (DEA) under K-REACH

C4H11NO2 · 二乙醇胺

Status: Registered. Diethanolamine is registered under K-REACH. NOT on Korea TCCA Toxic Chemicals list at DEA level (verify against the current TCCA Toxic Chemicals list at https://www.nics.go.kr/ before relying). **IARC Group 2B Volume 101 (2013)** (verify against https://monographs.iarc.who.int/). NO active Korean AD/CVD case on Chinese-origin diethanolamine. KCFTA preferential zero-duty applies for Chinese-origin imports. Korea has both domestic production (Lotte Chemical Yeosu + LG Chem Yeosu) and Chinese-origin import dependency for surfactant + cement-grinding aid + agrochemical sectors.

K-REACH treats diethanolamine as a registered substance with no TCCA overlay. KCFTA preferential zero-duty. NO active Korean AD/CVD. Korea has both domestic production (Lotte Chemical Yeosu + LG Chem Yeosu) and Chinese-origin import dependency. **DEA distinguishing pattern across all 5 regimes**: Production as DEA fraction of alkanolamine slate from ammonia + ethylene oxide reaction (1:2 NH3 : EO molar ratio maximises DEA fraction); **Carc. 2 H351 EU + IARC Group 2B Monograph Volume 101 (2013) + California Proposition 65 carcinogen 22 June 2012 (OEHHA) + EPA Clean Air Act Section 112 HAP** carcinogen-overlay distinguishes DEA from MEA + TEA in the alkanolamine chain; **EU Cosmetic Products Regulation Annex II PROHIBITS DEA in cosmetics + Annex III restricts diethanolamides (cocamide DEA + lauramide DEA progressively reformulated due to nitrosamine-precursor concerns)**; mid hazard profile (Carc. 2 + STOT RE 2 + Acute Tox. 4 oral / dermal + Eye Irrit. 2 + Skin Irrit. 2); NOT regulated as dangerous goods at solid / aqueous form below corrosive concentration threshold; NIOSH REL 3 ppm + skin notation + Ca + ACGIH TLV-TWA 1 mg/m3 inhalable + skin notation + Korean MoEL OEL + Safe Work Australia WES 1 mg/m3 inhalable + skin notation; **NOT on EU Drug Precursors Reg 273/2004 + Reg 2015/1011 + NOT on US DEA schedules + NOT on China State Council 易制毒化学品管理条例 + NOT on Australian Drug Precursor list + NOT on Korean Act on Control of Narcotics at DEA level**; **surfactant feedstock (cocamide DEA + lauramide DEA + cocamidopropyl betaine for shampoo + detergent + cosmetics) + cement-grinding aid + gas-treatment / amine-scrubbing (H2S + CO2 removal in MDEA-blended formulations) + agrochemical intermediate (glyphosate + 2,4-D adjuvant) + corrosion inhibitor + textile-processing auxiliary + photographic developer downstream chains**; major non-Chinese producers Dow Chemical (USA Plaquemine LA + Seadrift TX) + INEOS (USA Plaquemine LA) + Mitsubishi Chemical (Japan Yokkaichi) + Lotte Chemical (Korea Yeosu) + LG Chem (Korea Yeosu); **China major DEA producer + exporter** (SINOPEC Maoming Petrochemical Guangdong + SINOPEC Jinling Petrochemical Nanjing + Jinghong Energy Inner Mongolia + Jiangsu Yida Chemical Yangzhou).

Listing and threshold

Substance Diethanolamine (DEA) (CAS 111-42-2), C4H11NO2
Regime Korea Act on the Registration and Evaluation of Chemicals (Act No. 11789, "K-REACH" amended 2018)
Jurisdiction Republic of Korea
Status Registered
Tonnage threshold K-REACH registration required for existing chemicals manufactured or imported >1 tonne/year (verified per Korean Ministry of Environment / NIER guidance, https://chemical.chemlinked.com/chempedia/k-reach; threshold for new substances was reduced from 0.1 t/y to 1 t/y effective 1 January 2025 per K-REACH 2025 amendment)

Classifications under this regime

  • **Korean GHS classification: Carc. 2 + STOT RE 2 + Acute Tox. 4 oral / dermal + Eye Irrit. 2 + Skin Irrit. 2** (verify against current MoE / NIER GHS before relying)
  • **IARC Group 2B Volume 101 (2013)** (verify against https://monographs.iarc.who.int/)
  • NOT on Korea TCCA Toxic Chemicals list at DEA level (verify against the current TCCA Toxic Chemicals list at https://www.nics.go.kr/ before relying)
  • Korean Customs Service (KCS) HS code: 292212
  • Korean MoEL OEL: 1 mg/m3 inhalable + skin notation typically (verify against current MoEL Industrial Safety + Health Act OEL list at https://www.moel.go.kr/ before relying)

Restrictions and conditions of use

  • No TCCA Toxic Chemicals Handling Permit required at DEA level
  • KOSHA MSDS in Korean required at workplace (Carc. 2 + STOT RE 2)
  • NO active Korean AD/CVD case on Chinese-origin diethanolamine
  • KCFTA preferential zero-duty applies (HS 292212)

Importer obligations

Korean importer of record must hold K-REACH registration. Korea has both domestic production (Lotte Chemical Yeosu + LG Chem Yeosu) and Chinese-origin import dependency.

Required documents

  • K-REACH registration number on Korean side
  • Korean MSDS (Carc. 2 + STOT RE 2 + Acute Tox. 4 + Eye Irrit. 2 + Skin Irrit. 2 + IARC 2B)
  • KCS declaration with HS 292212
  • China-Korea FTA Form CO

Common compliance traps

The pitfalls that have bitten importers on this lane in the past. None of these is theoretical.

  • NOT on TCCA Toxic Chemicals list at DEA level
  • **Carc. 2 + STOT RE 2 + IARC Group 2B Volume 101 (2013)**
  • KCFTA preferential zero-duty applies
  • NO active Korean AD/CVD case
  • Korean MoEL OEL 1 mg/m3 inhalable + skin notation
  • Korea has both domestic production (Lotte Chemical Yeosu + LG Chem Yeosu) and Chinese-origin import dependency

Where to read next

For substance-level identifiers (formula, molecular weight, SMILES, InChIKey), GHS hazard profile, IMDG transport class, and full sourcing reference for diethanolamine (dea), see the CAS 111-42-2 sourcing reference.

For grade-by-grade buying notes, freight maths, supplier-tier pricing, and a worked landed-cost example, the diethanolamine (dea) cornerstone hub covers the full sourcing chain.

For the structure and history of K-REACH, see the K-REACH glossary entry.

Need cross-jurisdiction compliance support on this substance? Run it through the REACH / TSCA / IECSC / AICIS / K-REACH checker, or send us the substance and the destination and we will quote FOB China and CIF / DDP landed including the regulatory work on the destination side.

Read next

Cross-jurisdiction profile and sourcing references

Referenced in

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