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HCID 8454Erstellt: 27. Oktober 2026

1-Methylpyrrolidin

N-METHYLPYRROLIDINE · Methylpyrrolidine · 1-methyl · Pyrrolidine,1-methyl- · NSC 65579 · 1-Methylpyrrodine · 1-methyl-pyrrolidin · 1-METHYLPYRROLIDINE

https://huagongshe.com/de/chemical/8454

Molekülstruktur von 1-Methylpyrrolidin

Identifikatoren & physikalische Daten

CAS No.120-94-5
SummenformelC5H11N
Durchschnittliche Molmasse85,15 g/mol
Monoisotopische Masse85,08914935 g/mol
SMILESCN1CCCC1
InChIKeyAVFZOVWCLRSYKC-UHFFFAOYSA-N
PubChem CID8454
ChEMBLCHEMBL665
ChEBICHEBI:234043
EC No.204-438-5
DTXSIDDTXSID8042210
Lokaler Name1-Methylpyrrolidin

Chemische & physikalische Eigenschaften

XLogP0,9
Polarare Oberfläche (TPSA)3,2
H-Brücken-Donoren0
H-Brücken-Akzeptoren1
Frei drehbare Bindungen0
Schwere Atome6
Formalladung0
Komplexität37,2
StoffklassenNitrogen Compounds -> Amines, CyclicFlammable agents - 3rd degree
ArzneimittelPharmaceuticals -> Metabolite of Cefepime
KosmetikaSurfactant
SpringerMaterials Properties15N nuclear magnetic resonance spectrum
LogP (Verteilungskoeffizient)0.92
Dichte0.8054 @25 °C0.800 g/mL at 20 °C (lit.)
AromastoffeEU Flavoring substances
Siedepunkt80.5 °C @760 [mm Hg]76-80 °C (lit.)
Schmelzpunkt-90 °C
Dampfdruck100.0 [mmHg]100 hPa (20 °C)
Physical DescriptionLiquid[Alfa Aesar MSDS]
Dissociation Constants10.3
Brechungsindexn20/D 1.425
Flammpunkt−7 °F
LagerbedingungenStore below +30°C.
Löslichkeit213g/lfully miscible
pKa (Säurekonstante)10.32(at 25℃)
AggregatzustandLiquid
FarbeClear colorless
pH11.3 (1g/l, H2O)
Explosionsgrenze1.1-9.1%(V)
BRN102445
Henry-Konstante3.3×10-1 mol/(m3Pa) at 25℃, Cabani et al. (1971)
InChI1S/C5H11N/c1-6-4-2-3-5-6/h2-5H2,1H3
InChIKeyAVFZOVWCLRSYKC-UHFFFAOYSA-N
SMILESCN1CCCC1
LogP (Verteilungskoeffizient)1.1 at 23℃
CAS Datenbank120-94-5(CAS DataBase Reference)
NIST chemische InformationenPyrrolidine, 1-methyl-(120-94-5)
EPA chemische InformationenN-Methylpyrrolidine (120-94-5)

Sicherheit & Vorschriften

GHS-EinstufungDangerH225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]P210, P233, P240, P241, P242, P243, P260, P261, P264, P264+P265, P270, P271, P273, P280, P301+P316, P301+P317, P301+P330+P331, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P316, P317, P321, P330, P363, P370+P378, P391, P403+P235, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 191 reports by companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatorische InformationenChemical: Pyrrolidine, 1-methyl-Commission Regulation (EC) No 1565/2000 (Repealed by Com. Implementing Reg. (EU) No 872/2012)Status: Active Update: 01-07-2015 https://echa.europa.eu/registration-dossier/-/registered-dossier/11871N-Methylpyrrolidine: Does not have an individual approval but may be used under an appropriate group standardThe New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
GefahrenübersichtIntraperitoneal LD50 (mouse) = 178 mg/kg[RTECS] Causes burnsInhalation may cause corrosive injuries to upper respiratory tract and lungs[Alfa Aesar MSDS]
Hazard Classes and CategoriesFlam. Liq. 2 (100%)Flammable agents - 3rd degree, Reactive agents - 1st degree
CSL Reaction InformationCSL00039N-BROMOSUCCINIMIDE + 1-METHYL-2-PYRROLIDINONE + 1-METHYLPYRROLIDINEThermal runaway from ambient to >100°CExplosiveBrominationUser-Reported
Protective Action Criteria (PAC)0.58 [mg/m3]6.4 [mg/m3]39 [mg/m3]
Unerwünschte WirkungenDermatotoxin - Skin burns.
Wassergefährdungsklasse (WGK)

Anwendungen & Verwendung

Verwenden

1-Methylpyrrolidine is a methylated pyrollidine and is involved as an essential part of the structure of cefipime. It is also an active component of cigarette smoke.

Herstellung & Synthese

synthetische

n-methylpyrrolidine was successfully synthesized in an aqueous medium by using methylamine and 1,4-dibromobutane in the presence of catalyst k2co3 at a moderated temperature. here, n-methylpyrrolidine was firstly synthesized via the green chemistry process, in which both the water solvent and potassium carbonate catalyst were inexpensive and environmentally friendly. also, the reaction temperature was quite moderated at 90°C.green organic synthesis of n-methylpyrrolidine

2
TSCA-Inventar-StatusTSCA listed
UN-TransportnummerUN 2924 3/PG 2
Zollcode2933 99 80
RTECS-Nr.UY1420500
R-Sätze (R)11-22-34-51/53-35-20/22
ToxizitätLD50 orally in Rabbit: 280 mg/kg
GefahrensymboleF,C,N
Sicherheitshinweise (S)16-26-36/37/39-45-61-29
Gefahrenklasse3Acute Tox. 3 OralAcute Tox. 4 InhalationAquatic Chronic 2Flam. Liq. 2Skin Corr. 1A
VerpackungsgruppeII
Lagerklasse3 - Flammable liquids
Selbstentzündungstemperatur170 °C DIN 51794