CN code 292242 covers glutamic acid (CAS 56-86-0) and its salts, most importantly monosodium glutamate (MSG, CAS 142-47-2), as well as potassium glutamate and calcium glutamate. Glutamic acid is a non-essential amino acid naturally present in plant and animal proteins, a central excitatory neurotransmitter, and a key metabolic intermediate. Monosodium glutamate is authorised as food additive E621 and is used extensively as a flavour enhancer to intensify the umami taste in processed foods, instant noodles, seasonings, and savoury preparations. Classification under CN 292242 requires compliance with Note 1 to Chapter 29 – the substance must be chemically defined and pure. Blends of MSG with carriers, fillers, or other functional ingredients may require classification in Chapter 21 or Chapter 38 of the Combined Nomenclature. A certificate of analysis confirming chemical identity, purity, and CAS number is required at customs clearance. For MSG intended for food applications, compliance with the purity specifications laid down in Regulation (EU) No 231/2012 establishing specifications for food additives is mandatory.

Glutamic acid and its salts imported into the EU are subject to REACH Regulation (EC) No 1907/2006. Registration with ECHA or appointment of an Only Representative (OR) established in the EU is required for substances imported in quantities of at least 1 tonne per year by a single importer. Monosodium glutamate holds an existing REACH registration – importers must verify that the registered tonnage band covers their planned import volumes. The CLP hazard profile of monosodium glutamate is low; the substance is not classified as toxic, carcinogenic, or irritant under standard commercial conditions. Nevertheless, a Safety Data Sheet (SDS) prepared in accordance with Regulation (EU) 2020/878 must accompany each industrial shipment, even when the substance is intended for food sector use. MSG dust generated during bulk handling operations may cause respiratory irritation, making appropriate respiratory protection advisable. MSG used in food applications must meet the requirements of Regulation (EC) No 1333/2008 on food additives, including the permitted food categories and maximum use levels applicable to E621 in each category.

Customs declarations for goods classified under CN 292242 must specify whether the imported substance is free glutamic acid (CAS 56-86-0), monosodium glutamate (E621, CAS 142-47-2), or another salt. Required documentation includes a manufacturer-issued Certificate of Analysis (CoA) with CAS number, purity grade, and description of commercial form, a current Safety Data Sheet (SDS), and evidence of REACH registration or OR appointment. Imports of MSG intended for food applications may require a compliance certificate against JECFA or EU purity specifications and a manufacturer declaration on microbiological quality. Exports outside the EU should be checked against destination country regulations – certain jurisdictions require specific labelling disclosing the presence of a flavour enhancer. Preferential tariff rates may be available under applicable free trade agreements – TARIC verification and proper preparation of preferential origin documents (EUR.1, invoice declaration) are recommended before each transaction. CN code 292242 is an eight-digit code; statistical export reporting requires the full ten-digit TARIC code.

Organic substances under CN code 2922 42 (Glutamic acid and its salts) require detailed chemical documentation for customs clearance. The Safety Data Sheet must comply with REACH Annex II. Substances classified as hazardous under CLP require GHS pictogram labelling. Transport follows ADR (road) or IMDG (maritime) regulations. Some organic substances may be subject to export controls as dual-use goods. Importers should verify whether the substance requires REACH authorisation (Annex XIV) or is subject to restrictions (Annex XVII).