A7715112
1,2,3-Trimethylbenzene , Analysis standard , 526-73-8
Synonym(s):
Hemellitol
CAS NO.：526-73-8
Empirical Formula: C9H12
Molecular Weight: 120.19
MDL number: MFCD00008520
EINECS: 208-394-8
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | −25 °C(lit.) |
| Boiling point: | 175-176 °C(lit.) |
| Density | 0.894 g/mL at 25 °C(lit.) |
| vapor density | 4.15 (vs air) |
| vapor pressure | 3.4 mm Hg ( 37.7 °C) |
| refractive index | n |
| Flash point: | 119 °F |
| solubility | Soluble in acetone, alcohol, benzene, and ether (Weast, 1986) |
| pka | >14 (Schwarzenbach et al., 1993) |
| color | Colorless to Light yellow |
| Odor Threshold | 0.032ppm |
| Water Solubility | 65.51mg/L(25 ºC) |
| BRN | 1903410 |
| Henry's Law Constant | 3.18 at 25 °C (approximate - calculated from water solubility and vapor pressure) |
| Dielectric constant | 2.6600000000000001 |
| Exposure limits | EU LTEL:20 ppm(100 mg/m3) |
| Stability: | Stable. Flammable. Incompatible with strong oxidizing agents. |
| Major Application | environmental |
| InChI | 1S/C9H12/c1-7-5-4-6-8(2)9(7)3/h4-6H,1-3H3 |
| InChIKey | FYGHSUNMUKGBRK-UHFFFAOYSA-N |
| SMILES | Cc1cccc(C)c1C |
| LogP | 3.660 |
| CAS DataBase Reference | 526-73-8(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzene, 1,2,3-trimethyl-(526-73-8) |
| EPA Substance Registry System | 1,2,3-Trimethylbenzene (526-73-8) |
Description and Uses
Raw material for chemical synthesis.
Safety
| Symbol(GHS) |   GHS02,GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319-H371-H335-H411-H226 |
| Precautionary statements | P501-P273-P260-P270-P240-P210-P233-P243-P241-P242-P271-P264-P280-P370+P378-P391-P337+P313-P305+P351+P338-P308+P311-P362+P364-P303+P361+P353-P332+P313-P304+P340+P312-P403+P233-P403+P235-P405 |
| target organs | Respiratory system |
| PPE | Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter |
| Hazard Codes | Xi |
| Risk Statements | 10-37-36/37/38 |
| Safety Statements | 16-26 |
| RIDADR | UN 3295 3/PG 3 |
| OEB | A |
| OEL | TWA: 25 ppm (125 mg/m3) |
| WGK Germany | 3 |
| RTECS | DC3300000 |
| Autoignition Temperature | 878 °F |
| TSCA | TSCA listed |
| HazardClass | 3.2 |
| PackingGroup | III |
| HS Code | 2902900000 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Eye Irrit. 2 Flam. Liq. 3 Skin Irrit. 2 STOT SE 3 |
| Hazardous Substances Data | 526-73-8(Hazardous Substances Data) |
