GHS precautionary statement
P201: Obtain special instructions before use
- P201
- Prevention
- Deleted
P201 was the precautionary statement “Obtain special instructions before use”. It is marked as deleted in the GHS data we compile, so it is not part of the current GHS revision.
About the prevention group
P200 series: actions to take before and during use to prevent or minimise harm, such as avoiding ignition sources, using ventilation and wearing protective equipment. See all precautionary statements for the full list.
Hazards that call for P201
The GHS data recommends P201 for these hazard statements.
| Code | Statement | Hazard class and category | Signal word |
|---|---|---|---|
| H200 | Unstable Explosive Deleted | Explosives — Unstable Explosive | Danger |
Chemicals using P201
No chemicals in our database list P201 in their primary classification yet.
P201 frequently asked questions
Is P201 still used?
No. P201 ("Obtain special instructions before use") is marked as deleted in the GHS data we compile, so it is not part of the current GHS revision. It may still appear on older labels and safety data sheets.
What did P201 say?
"Obtain special instructions before use". It was a prevention precautionary statement.
Precautionary statements are general recommendations. Follow the specific instructions on your product's label and safety data sheet.
https://pubchem.ncbi.nlm.nih.gov/ghs/ghscode_10.txt (UN GHS Revision 10, retrieved 2026-10-12)