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2-Methylhydrochinon
THQ · TOLUHYDROQUINONE · METHYLHYDROQUINONE · 1,4-Benzenediol, 2-methyl- · P-TOLUHYDROQUINOL · 2-methyl-1,4-hydroquinone · 2,5-DIHYDROXYTOLUENE · 2-METHYL-1,4-BENZENEDIOL
Identifikatoren & physikalische Daten
| CAS No. | 95-71-6 |
|---|---|
| Summenformel | C7H8O2 |
| Durchschnittliche Molmasse | 124,14 g/mol |
| Monoisotopische Masse | 124,0524295 g/mol |
| SMILES | Cc1cc(O)ccc1O |
| InChIKey | CNHDIAIOKMXOLK-UHFFFAOYSA-N |
| PubChem CID | 7253 |
| ChEMBL | CHEMBL450917 |
| ChEBI | CHEBI:133842 |
| EC No. | 202-443-7 |
| DTXSID | DTXSID4020876 |
| Lokaler Name | 2-Methylhydrochinon |
Chemische & physikalische Eigenschaften
| XLogP | 1 |
|---|---|
| Polarare Oberfläche (TPSA) | 40,5 |
| H-Brücken-Donoren | 2 |
| H-Brücken-Akzeptoren | 2 |
| Frei drehbare Bindungen | 0 |
| Schwere Atome | 9 |
| Formalladung | 0 |
| Komplexität | 92,9 |
| Stoffklassen | Other Classes -> Phenols |
| Dampfdruck | 0.0028 [mmHg]0.004Pa at 25℃ |
| Physical Description | Dry PowderOff-white solid with a slight odor[Eastman Chemical MSDS] |
| Schmelzpunkt | 128-130 °C(lit.) |
| Siedepunkt | 285°C |
| Dichte | 1.1006 (rough estimate) |
| Brechungsindex | 1.4922 (estimate) |
| Flammpunkt | 172 °C |
| Lagerbedingungen | Store below +30°C. |
| Löslichkeit | 77g/l77 g/L (25 ºC) |
| pKa (Säurekonstante) | pK1:10.03pK2:11.62 (25°C) |
| Aggregatzustand | Crystalline Powder |
| Farbe | Grayish-white to light beige |
| BRN | 2041489 |
| Stabilität | Stable. Combustible. Incompatible with oxidizing agents, strong bases. |
| InChI | 1S/C7H8O2/c1-5-4-6(8)2-3-7(5)9/h2-4,8-9H,1H3 |
| InChIKey | CNHDIAIOKMXOLK-UHFFFAOYSA-N |
| SMILES | Cc1cc(O)ccc1O |
| LogP (Verteilungskoeffizient) | 0.9 at 27℃ |
| CAS Datenbank | 95-71-6(CAS DataBase Reference) |
| NIST chemische Informationen | 1,4-Benzenediol, 2-methyl-(95-71-6) |
| EPA chemische Informationen | 2-Methylhydroquinone (95-71-6) |
Sicherheit & Vorschriften
| GHS-Einstufung | This chemical does not meet GHS hazard criteria for 1.1% (5 of 467) of reports.DangerH302 (94%): Harmful if swallowed [Warning Acute toxicity, oral]P203, P261, P264, P264+P265, P270, P271, P272, P273, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P317, P318, P319, P321, P330, P332+P317, P333+P317, P337+P317, P362+P364, P391, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 467 reports by companies from 28 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| Regulatorische Informationen | Chemical: 1,4-Benzenediol, 2-methyl-1,4-Benzenediol, 2-methyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1,4-Benzenediol, 2-methyl- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Status: Active Update: 05-01-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/27614Methylhydroquinone: Does not have an individual approval but may be used under an appropriate group standard |
| Gefahrenübersicht | A skin and eye irritantDust causes eye and respiratory tract irritationHarmful by ingestion[Eastman Chemical MSDS] See Hydroquinone. |
| Hazard Classes and Categories | Acute Tox. 4 (94%) |
| Wassergefährdungsklasse (WGK) | 2 |
| TSCA-Inventar-Status | TSCA listed |
| UN-Transportnummer | 2811 |
| Zollcode | 29072900 |
| RTECS-Nr. | MX6700000 |
| R-Sätze (R) | 36/37/38-22 |
| Toxizität | LD50 orally in Rabbit: 200 - 400 mg/kg |
| Gefahrensymbole | Xi,Xn |
| Sicherheitshinweise (S) | 26-36 |
| Gefahrenklasse | 6.1(b)Aquatic Acute 1Aquatic Chronic 1Eye Dam. 1Skin Corr. 1ASkin Sens. 1STOT SE 3 |
| Verpackungsgruppe | III |
| Lagerklasse | 8A - Combustible corrosive hazardous materials |
| Selbstentzündungstemperatur | 851 °F |
Anwendungen & Verwendung
Verwenden
Antioxidant, polymerization inhibitor.