H302 — Harmful if swallowed
The GHS hazard statement for acute toxicity, oral, category 4. Here is what it means, the label elements that travel with it, and the substances that carry it.
At a glance
| Official statement | Harmful if swallowed. |
| Hazard class | Acute toxicity, oral |
| Category | Category 4 |
| Signal word | Warning |
| Pictogram |  GHS07 — Exclamation mark |
What it means
Serious harm — up to and including death — from swallowing a single dose or several doses within 24 hours. Categories 1 (most severe) onward are set from acute toxicity estimates (ATE) per GHS Chapter 3.1.
Precautionary statements paired with H302
When the engine writes SDS Section 2 or a container label for a product carrying H302, these are the P-codes it assigns, in the official Annex 3 groups:
| Prevention | P264 | Wash hands and exposed skin thoroughly after handling. |
| P270 | Do not eat, drink or smoke when using this product. | |
| Response | P301 | IF SWALLOWED: rinse mouth. Do NOT induce vomiting. |
| P312 | Call a POISON CENTER or doctor if you feel unwell. | |
| P330 | Rinse mouth. | |
| Disposal | P501 | Dispose of contents/container in accordance with local/regional/national/international regulations. |
Substances that carry H302
1,173 of the 4,225 substances in our database carry H302 when classified in pure form — recognizable examples:
- hydrogen peroxide solution — CAS 7722-84-1
- xylene — CAS 1330-20-7
- styrene — CAS 100-42-5
- formaldehyde — CAS 50-00-0
The engine writes these for you.
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.