5-Methylresorcin
3,5-DIHYDROXYTOLUENE · 5-METHYLRESORCINOL · Methylresorcinol · Resorcinol, 5-methyl- · 5-Methyl-benzene-1,3-diol · 1,3-DIHYDROXY-5-METHYLBENZENE · Orcil · Orcin

Identifikatoren & physikalische Daten
| CAS No. | 504-15-4 |
|---|---|
| Summenformel | C7H8O2 |
| Durchschnittliche Molmasse | 124,14 g/mol |
| Monoisotopische Masse | 124,0524295 g/mol |
| SMILES | Cc1cc(O)cc(O)c1 |
| InChIKey | OIPPWFOQEKKFEE-UHFFFAOYSA-N |
| PubChem CID | 10436 |
| ChEMBL | CHEMBL110059 |
| ChEBI | CHEBI:16536 |
| EC No. | 207-984-2 |
| DTXSID | DTXSID2060123 |
| Lokaler Name | 5-Methylresorcin |
Chemische & physikalische Eigenschaften
| XLogP | 1,6 |
|---|---|
| Polarare Oberfläche (TPSA) | 40,5 |
| H-Brücken-Donoren | 2 |
| H-Brücken-Akzeptoren | 2 |
| Frei drehbare Bindungen | 0 |
| Schwere Atome | 9 |
| Formalladung | 0 |
| Komplexität | 82,9 |
| Stoffklassen | Other Classes -> Phenols |
| SpringerMaterials Properties | Boiling point |
| Dampfdruck | 0.0028 [mmHg] |
| Physical Description | Solid[Sigma-Aldrich MSDS] |
| Schmelzpunkt | 106-112 °C(lit.) |
| Siedepunkt | 290 °C |
| Dichte | 1.2900 |
| Brechungsindex | 1.4922 (estimate) |
| Flammpunkt | 159 °C |
| Lagerbedingungen | Store at <= 20°C. |
| Löslichkeit | 80g/l |
| pKa (Säurekonstante) | 9.56±0.10(Predicted) |
| Aggregatzustand | Crystalline Powder or Crystals |
| Farbe | Pink-gray to pink-brown |
| Merck | 14,6864 |
| BRN | 1071903 |
| Stabilität | Hygroscopic |
| InChI | 1S/C7H8O2/c1-5-2-6(8)4-7(9)3-5/h2-4,8-9H,1H3 |
| InChIKey | OIPPWFOQEKKFEE-UHFFFAOYSA-N |
| SMILES | Cc1cc(O)cc(O)c1 |
| LogP (Verteilungskoeffizient) | 1.221 (est) |
| CAS Datenbank | 504-15-4(CAS DataBase Reference) |
| NIST chemische Informationen | 3,5-Dihydroxytoluene(504-15-4) |
| EPA chemische Informationen | 1,3-Benzenediol, 5-methyl- (504-15-4) |
Sicherheit & Vorschriften
| GHS-Einstufung | WarningH302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]P261, P264, P264+P265, P270, P271, P273, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P391, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 66 reports by companies from 13 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| Regulatorische Informationen | Chemical: 1,3-Benzenediol, 5-methyl-Orcinol: Does not have an individual approval but may be used under an appropriate group standard |
| Weitere Sicherheitsinformationen | Evaluation - Chemicals that are unlikely to require further regulation to manage risks to environment |
| Gefahrenübersicht | Causes convulsions and coma in subcutaneous lethal-dose studies of guinea pigs and rats[RTECS] A skin and strong eye irritantHarmful by ingestionProlonged or repeated exposure may cause eye injury[Sigma-Aldrich MSDS] See 2-Methyl-1,4-hydroquinone, 1,3-Benzenediol, 2-methyl-, Resorcinol, and Cresol, all isomers. |
| Hazard Classes and Categories | Acute Tox. 4 (100%) |
| Wassergefährdungsklasse (WGK) | 3 |
| TSCA-Inventar-Status | TSCA listed |
| UN-Transportnummer | 2811 |
| Zollcode | 29072900 |
| RTECS-Nr. | VH2100000 |
| R-Sätze (R) | 22-36/37/38-41-37/38-20/21/22 |
| Toxizität | LD50 orally in Rabbit: > 2000 mg/kg LD50 dermal Rabbit > 5000 mg/kg |
| Gefahrensymbole | Xn |
| Sicherheitshinweise (S) | 22-26-36-37/39 |
Anwendungen & Verwendung
Verwenden
Orcinol can be used to synthesize:Orcinol-containing azacryptands for use in optical amplifiers and light-emitting devices.Ternary co-crystal with 4,4′-bipyridine.Low-density carbon aerogels in the presence of formaldehyde.PEG-orcinol coumarins with potent tyrosinase inhibitory activity.
Herstellung & Synthese
synthetische
Orcinol has been isolated from numerous lichen fungi (Robiquet, 1829) and can be synthesized by decarboxylation of orsellinic acid in Umbilicaria papulosa and Gliocladium roseum (Pettersson, 1965; Mosbach and Ehrensvard, 1966).Orcinol was first prepared by dehydroacetic acid, a conversion that involved ring-opening of the pyrone to a triketone. This early experiment helped establish the rich condensation chemistry of polyketides. It can be obtained by fusing extract of aloes with potash, followed by acidification.US3865884A: Preparation of orcinol