GHS hazard statement
H317: May cause an allergic skin reaction
- H317
- Health hazards
- Warning
H317 means “May cause an allergic skin reaction”. It is a GHS hazard statement for Sensitization, Skin (Category 1, 1A, 1B), shown with GHS07 under the signal word “Warning”.
Hazard class and category
| Hazard class | Category | Pictogram | Signal word | UN transport class |
|---|---|---|---|---|
| Sensitization, Skin | Category 1, 1A, 1B |  | Warning | — |
What H317 means
A skin sensitizer is a substance that causes an allergic response after skin contact. Once a person is sensitized, later exposure, even to very small amounts, can cause a reaction such as a rash.
Repeated contact can cause an allergy that may be lifelong. Once someone is sensitized, small exposures can trigger symptoms.
What to do
Avoid skin contact and wear suitable gloves and protective clothing. Do not take contaminated work clothing home, wash it separately, and get medical attention if a rash develops.
This is general guidance for the hazard class. The safety data sheet for your product always takes precedence.
Precautionary statements for H317
The GHS lists these precautionary statements for this hazard. Which ones appear on a label depends on the supplier's classification.
| Code | Statement |
|---|---|
| P261 | Avoid breathing dust/fume/gas/mist/vapors/spray. |
| P272 | Contaminated work clothing should not be allowed out of the workplace. |
| P280 | Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... |
| P302+P352 | IF ON SKIN: wash with plenty of water/... |
| P333+P317 | If skin irritation or rash occurs: Get medical help. |
| P321 | Specific treatment (see ... on this label). |
| P362+P364 | Take off contaminated clothing and wash it before reuse. |
| P501 | Dispose of contents/container to ... |
Chemicals carrying H317
11 chemicals in our database. Classification comes from each chemical's primary GHS source, so a supplier's SDS may differ.
H317 frequently asked questions
What does H317 mean?
H317 means "May cause an allergic skin reaction". It is a GHS hazard statement in the health hazards group, covering Sensitization, Skin (Category 1, 1A, 1B).
Which pictogram goes with H317?
H317 is shown with GHS07 (Exclamation Mark).
What signal word goes with H317?
The signal word for H317 is "Warning".
Which precautionary statements go with H317?
The GHS data lists 8 precautionary statements for H317, including P261, P272, P280, P302+P352, P333+P317. They cover prevention, response, storage and disposal. The full list is on this page.
Hazard statements describe the hazard of a classified substance or mixture. The classification of a specific product can differ, so use the supplier's SDS.
https://pubchem.ncbi.nlm.nih.gov/ghs/ghscode_10.txt (UN GHS Revision 10, retrieved 2026-10-12)