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HCID 66775Erstellt: 27. Oktober 2026
1-Methyl-1,3-cyclopentadiene
1,3-Cyclopentadiene, 1-methyl- · 1-Methyl-1,3-cyclopentadiene · 1-methylcyclopenta-1,3-diene
https://huagongshe.com/de/chemical/66775
Identifikatoren & physikalische Daten
| CAS No. | 26519-91-5 |
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| Summenformel | C6H8 |
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| Durchschnittliche Molmasse | 80,13 g/mol |
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| Monoisotopische Masse | 80,06260026 g/mol |
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| SMILES | CC1=CC=CC1 |
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| InChIKey | NFWSQSCIDYBUOU-UHFFFAOYSA-N |
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| PubChem CID | 66775 |
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| EC No. | 247-757-5 |
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| DTXSID | DTXSID101027739 |
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Chemische & physikalische Eigenschaften
| XLogP | 1,8 |
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| Polarare Oberfläche (TPSA) | 0 |
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| H-Brücken-Donoren | 0 |
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| H-Brücken-Akzeptoren | 0 |
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| Frei drehbare Bindungen | 0 |
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| Schwere Atome | 6 |
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| Formalladung | 0 |
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| Komplexität | 96,6 |
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| Stoffklassen | Other Classes -> Aliphatics, Unsaturated |
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| SpringerMaterials Properties | Density |
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| Physical Description | Methylcyclopentadiene appears as a pale yellow liquid or crystalline solid. Less dense than water and insoluble in water. Hence floats on water. Vapors are heavier than air. Vapor can injure the eyes and respiratory tract and may cause headaches and dizziness. Vapor is anesthetic and may have other central nervous system effects. Vapor may also cause liver and kidney disorder. Ingestion of the liquid into the respiratory system, or from vomiting, may cause bronchopneumonia or pulmonary edema.Pale yellow liquid or solid[CAMEO] |
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| Schmelzpunkt | 66-66.5 °C |
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| Siedepunkt | 73.5-74 °C(Press: 749 Torr) |
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| Dichte | 0.8053 g/cm3 |
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| InChI | InChI=1S/C6H8/c1-6-4-2-3-5-6/h2-4H,5H2,1H3 |
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| InChIKey | NFWSQSCIDYBUOU-UHFFFAOYSA-N |
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| SMILES | C1(C)CC=CC=1 |
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Sicherheit & Vorschriften
| Regulatorische Informationen | Chemical: 1,3-Cyclopentadiene, methyl-1,3-Cyclopentadiene, methyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1,3-Cyclopentadiene, 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)1,3-Cyclopentadiene, methyl-: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right. |
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| DOT-Kennzeichnung | Flammable Liquid |
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| Brandgefahren | Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]: |
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| Gesundheitsgefahren | Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]: |
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| Gefahrenübersicht | Highly flammableVapor may cause eye and respiratory tract injuryInhalation may have anesthetic and other CNS effectsMay cause liver and kidney injuryAn aspiration hazard by ingestion (may cause respiratory tract damage)[CAMEO] See Cyclopentadiene. |
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| Reaktive Gruppe | Hydrocarbons, Aliphatic Unsaturated |
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| Reactivity Alerts | Highly Flammable |
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| Reactivity Profile | METHYLCYCLOPENTADIENE may react vigorously with strong oxidizing agents. Can react exothermically with reducing agents to release gaseous hydrogen. May undergo autoxidation upon exposure to the air to form explosive peroxides. |
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| History and Incidents | December 19, 2007, T2 Laboratories runaway reaction and explosionc, Methylcyclopentadienyl Manganese Tricarbonyl, Methylcyclopentadiene, and Diglyme, 4 fatalities 32 injured |
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| Air and Water Reactions | Highly flammable. Insoluble in water. |
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| Brandbekämpfung | Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]: |
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| Erste Hilfe | |
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