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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 132427328Generated: October 23, 2026

3-Butyl-1-methyl-1H-imidazol-3-ium bis(fluorosulfonyl)amide

SKL1533 · SKL1522 · BMI-FSI · 1-butyl-3-methylimidazolium bis(fluorosulfonyl)imide · bis(fluorosulfonyl)imide 1-butyl-3-methylimidazolium salt · 3-butyl-1-methyl-1H-imidazole-3-bis(fluorosulfonyl)isoamine · BMI-FSI 1-Butyl-3-methylimidazolium Bis(fluorosulfonyl) imide 1H-Imidazolium, 3-butyl-1-methyl-, salt with imidodisulfuryl fluoride (1:1)

https://huagongshe.com/en/chemical/132427328

3-Butyl-1-methyl-1H-imidazol-3-ium bis(fluorosulfonyl)amide molecular structure

Identifiers & Physical Properties

CAS No.1235234-58-8
Molecular formulaC8H15F2N3O4S2
Average molar mass319.4 g/mol
SMILESCCCCn1cc[n+](C)c1.O=S(=O)(F)[N-]S(=O)(=O)F
InChIKeyUAHSIDZLYHAYDH-UHFFFAOYSA-N
PubChem CID132427328
EC No.986-872-1

Chemical & Physical Properties

Topological polar surface area94.9
Hydrogen bond donors0
Hydrogen bond acceptors7
Rotatable bonds5
Heavy atoms19
Formal charge0
Complexity324
Density1.36 g/cm³(Temp: 25 °C)
REACH registrationsActive

Safety & Regulations

GHS classificationWarningH315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 13 reports by companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatory informationREACH registered substance: 1-butyl-3-methyl-1H-imidazol-3-ium bis(fluorosulfonyl)azanide (EC: 986-872-1)
Hazard Classes and CategoriesSkin Irrit. 2 (100%)
REACH registrationsActive