What is the GHS hazard classification for Hydrogen?
Hydrogen (CAS 1333-74-0) is classified under EU CLP Annex VI as Flam. Gas 1; Press. Gas with signal word Danger. Hazard statements: H220. Source: EU CLP Annex VI (ECHA).
Also known as: Dihydrogen, Hydrogen molecule, Mol. hydrogen, Molecular hydrogen, Orthohydrogen (+13 more)
CAS 1333-74-0
Hydrogen (CAS 1333-74-0) is a chemical substance with GHS signal word Danger; key hazard signal: H220. Key regulatory status: 4 regulatory/inventory lists, cosmetic ingredient cross-reference; source data from ECHA CLP, EPA ToxValDB, EPA CPDat, AICIS, ILO ICSC.
Hydrogen is classified GHS Danger (H220) in the chemicals database but is allowed in EU cosmetics.
CAS, identifiers, formula, and alternate names for the matched substance record.
EU harmonized hazard classification, hazard statements, pictograms, and signal word.
| Hazard Class | H-Statements | Pictograms | Signal |
|---|---|---|---|
| Flam. Gas 1; Press. Gas | H220 | GHS02; GHS04 | Danger |
International Chemical Safety Card hazard and exposure summary.
| Field | Value |
|---|---|
| GHS Signal Word | DANGER |
| GHS Hazard Statements | Extremely flammable gas Contains gas under pressure; may explode if heated |
| Short-term Effects | Asphyxiation. See Notes. Exposure to cold gas could cause frostbite. |
| Routes of Exposure | Exposure mainly occurs via inhalation. |
Industrial and product-use categories associated with this substance.
Inventory, screening, and regulatory list matches from public chemical databases.
| List | Keyword | Source |
|---|---|---|
| drinking_water; Europe; manufacturing; plastic_additive | Belgaqua | CPCat |
| pharmaceutical | US International Trade Commission | CPCat |
| Indirect additives food contact (10/2018) | FDA | United States Food and Drug Administration (FDA) |
| Canada; pharmaceutical | DrugBank | DrugBank |
Toxicology endpoints rendered from public NOAEL study rows.
| Value | Unit | Endpoint | Route | Species | Source |
|---|---|---|---|---|---|
| 7YNJ3PO35Z | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| 7YNJ3PO35Z | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| 7YNJ3PO35Z | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| 7YNJ3PO35Z | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| =3298.18 | mg/m3 | LEL | inhalation | Human | ToxValDB_DOE_Protective_Action_Criteria |
Showing 5 of 5 studies
Australian industrial chemicals inventory status and applicable conditions.
Same-CAS cosmetic ingredient record for cross-vertical context.
Same-CAS pharmaceutical records from drug and bioactivity sources.
Same-CAS food additive, ADI, and GRAS records where available.
FDA GRAS: FDA has no questions
View full food safety profile →Same-CAS cannabis compliance and lab records where available.
1 cannabis record found in efsa substances.
View full cannabis profile →Hydrogen (CAS 1333-74-0) is classified under EU CLP Annex VI as Flam. Gas 1; Press. Gas with signal word Danger. Hazard statements: H220. Source: EU CLP Annex VI (ECHA).
Hydrogen has 5 NOAEL studies in the database. The lowest reported value is 7YNJ3PO35Z UNII. Source: openFDA substances.
Hydrogen appears on 4 regulatory/inventory lists including drinking_water; Europe; manufacturing; plastic_additive, pharmaceutical, Indirect additives food contact (10/2018), and 1 more. Source: EPA CPDat.
Yes, Hydrogen is also indexed as a cosmetic ingredient under the name Hydrogen. View the full cosmetic safety profile on the ingredient page for detailed safety data, SCCS opinions, and regulatory status.
Safety data is sourced from ECHA CLP Annex VI, EPA ToxValDB, EPA CPDat, AICIS (Australian Industrial Chemicals Introduction Scheme), EPA DSSTox, ILO/WHO ICSC, CosIng / Ingredients DB, ChEMBL / DailyMed, EFSA / FDA GRAS, cannabis regulatory/lab databases. All data traces to primary regulatory sources and is updated from official government databases.
Hydrogen is classified GHS Danger (H220) in the chemicals database but is allowed in EU cosmetics.
Hydrogen also appears in cosmetics, pharmaceutical, food safety, cannabis databases.