1-(1,4,5-Trimethyl-1H-pyrrol-3-yl)ethanone CAS 52648-89-2
| CAS No. | 52648-89-2 |
| Molecular Formula | C9H13NO |
| Molecular Weight | 151.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
1-(1,4,5-Trimethyl-1H-pyrrol-3-yl)ethanone (CAS 52648-89-2), molecular formula C9H13NO and molecular weight 151.21 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H13NO, 1-(1,4,5-Trimethyl-1H-pyrrol-3-yl)ethanone contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 151.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H13NO |
| Molecular Weight | 151.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 1 |
Related Trimethyl Standards
- α,α,2-Trimethyl-4-pyridinemethanol (CAS 13854-01-8)
- 1-(2,4,5-Trimethyl-1H-pyrrol-3-yl)ethan-1-one (CAS 19005-95-9)
- 1-(1,2,4-Trimethyl-1H-pyrrol-3-yl)ethanone (CAS 52648-88-1)
- 1-(1,2,5-Trimethyl-1H-pyrrol-3-yl)ethanone (CAS 90433-85-5)
- 1-(2,4,5-trimethyl-1H-pyrrol-3-yl)ethanone (CAS 792847-60-0)
- 2-(1,3,5-Trimethyl-4,5-dihydro-1H-pyrazol-5-yl)acetonitrile (CAS 32527-74-5)
- 1,3,5-Trimethyl-1H-pyrazol-4-yl isocyanate (CAS 252956-48-2)
- 4,5,5-Trimethyl-2-oxo-2,5-dihydrofuran-3-carbonitrile (CAS 13332-71-3)
Recommended Standards
- 1-(1H-Pyrrol-1-yl)pentan-1-one (CAS 497147-41-8)
- 1-(1-Methyl-1H-pyrrol-2-yl)butan-1-one (CAS 62128-34-1)
- [5-(2-methylcyclopropyl)furan-2-yl]methanamine (CAS 954269-87-5)
- 1-(1-Methyl-1H-pyrrol-3-yl)butan-1-one (CAS 62128-46-5)
- 2-Fluoro-3-methylpyridin-4-amine (CAS 1393532-84-7)
- 2-(3-Chlorophenyl)-5'-fluoro-2'-hydroxyacetophenone (CAS 527751-49-1)
- 2-Amino-1-(4-chlorophenyl)ethan-1-one (CAS 7644-03-3)
- 2-(Isoquinolin-6-yl)acetic acid hydrochloride (CAS 1841081-67-1)
- (3,4-Dihydro-2H-benzo[b][1,4]oxazin-2-yl)(morpholino)methanone (CAS 874622-81-8)
- 4-Ethynyl-2-(trifluoromethyl)pyrimidine (CAS 37972-21-7)
- rel-Methyl (3aR,6aR)-2-benzylhexahydrocyclopenta[c]pyrrole-3a(1H)-carboxylate (CAS 1037367-40-0)
- 3-(Ethoxydimethylsilyl)propan-1-amine (CAS 18306-79-1)
- tert-Butyl 4-(2-fluoro-6-(trifluoromethyl)-phenyl)piperazine-1-carboxylate (CAS 1774897-45-8)
- Insulin Degludec Impurity 3 (CAS CATO-C4X-21573)
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