Acetonitrile
CAS 75-05-8·CH₃CN
The reversed-phase workhorse, in gradient-tested HPLC, LC-MS and specially dried grades.
Grades offered
- ARAnalytical ReagentHigh purity with certified assay and stated trace-impurity limits.
- HPLCHPLC GradeFiltered, low UV-absorbance solvent for liquid chromatography.
- LC MSLC-MS GradeUltra-low background for mass spectrometry.
- SPECIALLY DRIEDSpecially Dried / Anhydrous DriedLow-water solvent with a stated ppm water limit.
Typical applications
- Reversed-phase HPLC and UHPLC mobile phase
- LC-MS/MS trace quantitation
- DNA and peptide synthesis
- Protein precipitation
Acetonitrile
CH₃CN · M.W. 41.05 g/mol
- CAS
- 75-05-8
- Assay
- ≥ 99.9% (HPLC grade)
- Batch
- Use before
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Pack sizes
- 500 ml
- 2.5 L
- 25 LOn request
Worth knowing before you order
Specify gradient-grade explicitly if you run gradient elution with UV detection below 220 nm. Isocratic-grade acetonitrile is a different specification and will show a rising baseline.Identification
| CAS number | 75-05-8 |
|---|---|
| Molecular formula | CH₃CN |
| Molecular weight | 41.05 g/mol |
| Assay | ≥ 99.9% (HPLC grade) |
| Also known as | ACN, Methyl cyanide, Ethanenitrile |
Hazard identification
Signal wordDanger
- FlammableGHS02
- Irritant / harmfulGHS07
- H225Highly flammable liquid and vapour
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H319Causes serious eye irritation
- H332Harmful if inhaled
TransportUN1648Packing groupII
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