The GHS hazard statement for specific target organ toxicity, single exposure, category 2. Here is what it means, the label elements that travel with it, and the substances that carry it.
| Official statement | May cause damage to organs. |
| Hazard class | Specific target organ toxicity, single exposure |
| Category | Category 2 |
| Signal word | Warning |
| Pictogram |
Effects on a specific organ or body system from a single exposure. Categories 1 and 2 cover significant organ damage (proven or presumed vs. suspected); Category 3 covers transient effects — airway irritation or drowsiness/dizziness — that pass after exposure ends.
When the engine writes SDS Section 2 or a container label for a product carrying H371, these are the P-codes it assigns, in the official Annex 3 groups:
| Prevention | P260 | Do not breathe dust/fume/gas/mist/vapors/spray. |
| P264 | Wash hands and exposed skin thoroughly after handling. | |
| P270 | Do not eat, drink or smoke when using this product. | |
| Response | P309 | IF exposed or if you feel unwell: |
| P311 | Call a POISON CENTER or doctor. | |
| Storage | P405 | Store locked up. |
| Disposal | P501 | Dispose of contents/container in accordance with local/regional/national/international regulations. |
6 of the 4,225 substances in our database carry H371 when classified in pure form — recognizable examples:
When SDS HQ authors an SDS or a container label, it assigns the hazard statements, signal word, pictograms, and precautionary statements from these same tables — automatically, with the calculation shown.