Basionic(TM) ac 39
Synonym(s):1-Methylimidazole hydrogen sulfate
- CAS NO.：681281-87-8
- Empirical Formula: C4H8N2O4S
- Molecular Weight: 180.18
- MDL number: MFCD06798198
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:55:43
What is Basionic(TM) ac 39?
The Uses of Basionic(TM) ac 39
1-Methylimidazolium hydrogen sulfate is a Br?nsted acidic ionic liquid that can be used:
- As a component of a catalytic system along with chlorotrimethylsilane used in the preparation of 3,4-dihydropyrimidin-2(1H)-ones and hydroquinazoline-2,5-diones.
- As a catalyst in the preparation of biologically important 2,5-dimethyl-N-substituted pyrroles.
- As a reusable catalyst in the preparation of spiro[indoline-3′,2-quinazoline]2′,4(3H)-dione.
- In the leaching of copper and zinc in brass dross using H2O2 as an oxidant.
Properties of Basionic(TM) ac 39
| Melting point: | 64-65 °C |
| Density | 1.4488 g/cm3(Temp: 80 °C) |
| Flash point: | >280 °C |
Safety information for Basionic(TM) ac 39
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P363:Wash contaminated clothing before reuse. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Basionic(TM) ac 39
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