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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 2734160Generated: October 23, 2026

1-Ethyl-3-methylimidazolium chloride

EMIM CL · EMIC · 1-Ethyl-3-methylimidazole chloride · 1-ethyl-3-Methyl-1H-iMidazol-3-iuM chloride · SKL1487 · SKL1551 · SKL1554 · SKL1344

https://huagongshe.com/en/chemical/2734160

1-Ethyl-3-methylimidazolium chloride molecular structure

Identifiers & Physical Properties

CAS No.65039-09-0
Molecular formulaC6H11ClN2
Average molar mass146.62 g/mol
Monoisotopic mass146.06107603 g/mol
SMILESCCn1cc[n+](C)c1.[Cl-]
InChIKeyBMQZYMYBQZGEEY-UHFFFAOYSA-M
PubChem CID2734160
ChEMBLCHEMBL3184109
ChEBICHEBI:61327
EC No.613-739-4
DTXSIDDTXSID1041180

Chemical & Physical Properties

Topological polar surface area8.8
Hydrogen bond donors0
Hydrogen bond acceptors1
Rotatable bonds1
Heavy atoms9
Formal charge0
Complexity72.9
Melting point77-79 °C(lit.)
Density1.435 g/cm3
Vapor pressure0Pa at 20-50℃
Flash point186 °C
Storage conditionsStore below +30°C.
Physical stateAgglomerating Crystalline Powder
ColorPale yellow
SolubilitySoluble in water.
SensitivityHygroscopic
BRN5163190
StabilityStable. Very hygroscopic. Incompatible with strong oxidizing agents.
InChI1S/C6H11N2.ClH/c1-3-8-5-4-7(2)6-8/h4-6H,3H2,1-2H31H/q+1/p-1
InChIKeyBMQZYMYBQZGEEY-UHFFFAOYSA-M
SMILES[Cl-].CCn1cc[n+](C)c1
LogP (partition coefficient)-2.6 at 23℃ and pH6.6
CAS DataBase Reference65039-09-0(CAS DataBase Reference)
FDA UNIIPH90AQ1E93
EPA Substance Registry System1H-Imidazolium, 3-ethyl-1-methyl-, chloride (1:1) (65039-09-0)
UNSPSC Code12352107
NACRESNA.23
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH302-H319
GHS precautionary statementsP264-P270-P280-P301+P312-P305+P351+P338-P337+P313
Personal protective equipment (PPE)dust mask type N95 (US), Eyeshields, Gloves
Hazard symbolsXi,N,T
Risk statements (R)36/38-51/53-36/37/38-25
Safety statements (S)26-57-45-37/39-29
UN transport number2811
Water hazard class (WGK)2
F3-10
TSCA inventory statusTSCA listed
Customs code2933 29 90
Storage class11 - Combustible Solids
Hazard classAcute Tox. 4 OralEye Irrit. 2
REACH registrationsActive

Safety & Regulations

GHS classificationWarningH302 (70.3%): Harmful if swallowed [Warning Acute toxicity, oral]P264, P264+P265, P270, P280, P301+P317, P302+P352, P305+P351+P338, P321, P330, P332+P317, P337+P317, P362+P364, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 155 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatory informationPMN - indicates a commenced PMN (Pre-Manufacture Notices) substance.Status: Active Update: 13-09-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/16488
Hazard Classes and CategoriesAcute Tox. 4 (70.3%)
F3-10
Personal protective equipment (PPE)dust mask type N95 (US), Eyeshields, Gloves
Water hazard class (WGK)2
TSCA inventory statusTSCA listed
UN transport number2811
Customs code2933 29 90
Risk statements (R)36/38-51/53-36/37/38-25
Signal wordWarning
GHS pictogramGHS07
Hazard symbolsXi,N,T
Safety statements (S)26-57-45-37/39-29
Storage class11 - Combustible Solids
GHS hazard statementsH302-H319
REACH registrationsActive
Hazard classAcute Tox. 4 OralEye Irrit. 2
GHS precautionary statementsP264-P270-P280-P301+P312-P305+P351+P338-P337+P313

Applications & Uses

Uses

Used in cellulose processing.

Uses

1-Ethyl-3-methylimidazolium chloride is an imidazolium chloride ionic liquid that can be used as:A starting material for the preparation of 1-ethyl-3-methylimidazolium chloride/tetrafluoroborate (EMI.Cl.BF4) molten salt for electrochemical studies.A solvent as well as catalyst for the depolymerization of oak wood lignin.A solvent in the hydrolysis of hemicellulose (xylan) to xylose using Brnsted acid catalysts.

General Description

1-Ethyl-3-methylimidazolium chloride is an organic salt and a room-temperature ionic liquid (RTIL). It is used as a solvent in many organic reactions due to its unique properties like small vapor pressures, high thermal stabilities and ionic conductivities.