Catechol; Pyrocatechol
Corrosion
Skull and Crossbones
Exclamation Mark
Health Hazard
Hazard Statements
| Code | Statement | Hazard Class |
|---|---|---|
H301 |
Toxic if swallowed | Acute toxicity, oral |
H311 |
Toxic in contact with skin | Acute toxicity, dermal |
H315 |
Causes skin irritation | Skin corrosion/irritation |
H317 |
May cause an allergic skin reaction | Sensitization, Skin |
H318 |
Causes serious eye damage | Serious eye damage/eye irritation |
H335 |
May cause respiratory irritation | Specific target organ toxicity, single exposure; Respiratory tract irritation |
H341 |
Suspected of causing genetic defects | Germ cell mutagenicity |
H351 |
Suspected of causing cancer | Carcinogenicity |
H361 |
Suspected of damaging fertility or the unborn child | Reproductive toxicity |
H370 |
Causes damage to organs | Specific target organ toxicity, single exposure |
H401 |
Toxic to aquatic life | Hazardous to the aquatic environment, acute hazard |
Precautionary Statements
| Code | Statement |
|---|---|
P203 |
Obtain, read and follow all safety instructions before use. |
P260 |
Do not breathe dust/fume/gas/mist/vapors/spray. |
P261 |
Avoid breathing dust/fume/gas/mist/vapors/spray. |
P262 |
Do not get in eyes, on skin, or on clothing. |
P264 |
Wash hands [and ...] thoroughly after handling. |
P264+P265 |
Wash hands [and ...] thoroughly after handling. Do not touch eyes. |
P270 |
Do not eat, drink or smoke when using this product. |
P271 |
Use only outdoors or in a well-ventilated area. |
P272 |
Contaminated work clothing should not be allowed out of the workplace. |
P273 |
Avoid release to the environment. |
P280 |
Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... |
P301+P316 |
IF SWALLOWED: Get emergency medical help immediately. |
P302+P352 |
IF ON SKIN: wash with plenty of water/... |
P304+P340 |
IF INHALED: Remove person to fresh air and keep comfortable for breathing. |
P305+P354+P338 |
IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. |
P308+P316 |
IF exposed or concerned: Get emergency medical help immediately. |
P316 |
Get emergency medical help immediately. |
P317 |
Get emergency medical help. |
P318 |
if exposed or concerned, get medical advice. |
P319 |
Get medical help if you feel unwell. |
P321 |
Specific treatment (see information on this label and safety datasheet)). |
P330 |
Rinse mouth. |
P332+P317 |
If skin irritation occurs: Get medical help. |
P333+P317 |
If skin irritation or rash occurs: Get medical help. |
P361+P364 |
Take off immediately all contaminated clothing and wash it before reuse. |
P362+P364 |
Take off contaminated clothing and wash it before reuse. |
P403+P233 |
Store in a well-ventilated place. Keep container tightly closed. |
P405 |
Store locked up. |
P501 |
Dispose of contents/container to ... |
Exposure Limits
| NIOSH REL | 5 ppm |
| Skin Notation | Yes — can be absorbed through skin |
Physical Properties
Colorless, crystalline solid with a faint odor.
| Boiling Point | 474°F |
| Flash Point | 261°F |
| Vapor Pressure | 10 mmHg at 245°F |
| Specific Gravity | 1.34 |
NFPA 704 Diamond
1
3
0
Health
Fire
Reactivity
Target Organs
CNS depression; liver, respiratory, and renal effects
Synonyms
1,2-benzenediol; o-benzenediol; 1,2-dihydroxybenzene; o-dihydroxybenzene; 2-hydroxyphenol; pyrocatechol
Data Sources
- GHS Classification: PubChem CID 289
- NIOSH REL/IDLH: NIOSH Pocket Guide
Disclaimer: This information is compiled from public regulatory databases for reference only. It does not replace the manufacturer's Safety Data Sheet (SDS). Always consult the official SDS for your specific product before handling chemicals.
See something wrong? Report a data issue.