Pyrocatechol
SIAL/C9510 - ≥99%
Synonym: 1,2-Benzenediol; 1,2-Dihydroxybenzene; 2-Hydroxyphenol; Catechol
CAS Number: 120-80-9
Empirical Formula (Hill Notation): C6H6O2
Molecular Weight: 110.11
EC Number: 204-427-5
MDL Number: MFCD00002188
Linear Formula: C6H4-1,2-(OH)2
Product Type: Chemical
| assay | ≥99% |
| biological source | synthetic (organic) |
| bp | 245 °C (lit.) |
| color | white to faint beige |
| form | powder |
| InChI | 1S/C6H6O2/c7-5-3-1-2-4-6( |
| InChI key | YCIMNLLNPGFGHC-UHFFFAOYSA |
| mp | 100-103 °C (lit.) |
| Quality Level | 200 ![]() |
| SMILES string | Oc1ccccc1O |
| solubility | water: 50 mg/mL, clear, colorless to faintly yellow |
| storage temp. | room temp |
| vapor density | 3.8 (vs air) |
| vapor pressure | 1 mmHg ( 75 °C) |
| 10 mmHg ( 118.3 °C) |
| Disclaimer: | May discolor on exposure to air and light. |
| Packaging: | 1 kg in glass bottle |
| Packaging: | 100, 500 g in glass bottle |
| Symbol | ![]() ![]() GHS05,GHS06,GHS08 |
| Signal word | Danger |
| Hazard statements | H301 + H311 - H315 - H317 - H318 - H341 - H350 |
| Precautionary statements | P201 - P202 - P280 - P301 + P310 - P302 + P352 + P312 - P305 + P351 + P338 |
| Risk Statements | 43-68 |
| Safety Statements | 39 |
| RIDADR | UN2811 - class 6.1 - PG 3 - RQ - Toxic solids, organic, n.o.s. H |
| WGK Germany | WGK 2 |
| Flash Point(F) | 260.6 °F - closed cup |
| Flash Point(C) | 127 °C - closed cup |
| Purity | ≥99% |
| bp | 245 °C (lit.) |
| mp | 100-103 °C (lit.) |
| Storage Temp. | room temp |
| UNSPSC | 12352104 |




