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HCID 13005Erstellt: 24. Oktober 2026

2-Methylcyclopentan-1,3-dion

1,3-Cyclopentanedione, 2-methyl- · 2-Methylcyclopentane-1,3-dione · 2-Methyl-1 · 2-Methyl-1,3-cyclopentadione · -1,3-cycL · METHYLCYCLE-D · 2-Methylcyclopentan-1,3-dion · 2-METHYLCYCLOPENTAN-1,3-DIONE

https://huagongshe.com/de/chemical/13005

Molekülstruktur von 2-Methylcyclopentan-1,3-dion

Identifikatoren & physikalische Daten

CAS No.765-69-5
SummenformelC6H8O2
Durchschnittliche Molmasse112,13 g/mol
Monoisotopische Masse112,0524295 g/mol
SMILESCC1C(=O)CCC1=O
InChIKeyHXZILEQYFQYQCE-UHFFFAOYSA-N
PubChem CID13005
ChEMBLCHEMBL363186
EC No.212-153-2
DTXSIDDTXSID30227309
Lokaler Name2-Methylcyclopentan-1,3-dion

Chemische & physikalische Eigenschaften

XLogP0,2
Polarare Oberfläche (TPSA)34,1
H-Brücken-Donoren0
H-Brücken-Akzeptoren2
Frei drehbare Bindungen0
Schwere Atome8
Formalladung0
Komplexität121
Schmelzpunkt212-215 °C (lit.)
Siedepunkt213°C (estimate)
Dichte1.0795 (rough estimate)
Brechungsindex1.4550 (estimate)
LagerbedingungenStore below +30°C.
LöslichkeitSolubility in hot Methanol (almost transparency).
pKa (Säurekonstante)10.83±0.20(Predicted)
AggregatzustandCrystalline Powder
FarbeLight beige to tan
pH2.95 at 24.7℃ and 10g/L
BRN1237255
InChI1S/C6H8O2/c1-4-5(7)2-3-6(4)8/h4H,2-3H2,1H3
InChIKeyHXZILEQYFQYQCE-UHFFFAOYSA-N
SMILESCC1C(=O)CCC1=O
LogP (Verteilungskoeffizient)-0.8 at 30℃ and pH7.66
CAS Datenbank765-69-5(CAS DataBase Reference)
NIST chemische Informationen1,3-Cyclopentanedione, 2-methyl-(765-69-5)

Sicherheit & Vorschriften

GHS-EinstufungWarningH319 (99.1%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]P264+P265, P273, P280, P305+P351+P338, P337+P317, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 107 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatorische InformationenChemical: 1,3-Cyclopentanedione, 2-methyl-Status: Active Update: 14-08-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/163101,3-Cyclopentanedione, 2-methyl-: Does not have an individual approval but may be used under an appropriate group standard
Weitere SicherheitsinformationenEvaluation - Chemicals that are unlikely to require further regulation to manage risks to human health
Hazard Classes and CategoriesEye Irrit. 2A (99.1%)
Wassergefährdungsklasse (WGK)3
Zollcode29142900
R-Sätze (R)36/37/38
GefahrensymboleXi
hazard_noteIrritant
Sicherheitshinweise (S)22-24/25-36-26
Lagerklasse11 - Combustible Solids

Anwendungen & Verwendung

Verwenden

2-Methyl-1,3-cyclopentanedione was used as a reactant in the identification and characterization of benzil (diphenylethane-1,2-dione) analogues as inhibitors of mammalian carboxylesterases.