1-(4-Chloro-1H-pyrrol-2-yl)ethan-1-one CAS 51333-63-2
| CAS No. | 51333-63-2 |
| Molecular Formula | C6H6ClNO |
| Molecular Weight | 143.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-(4-Chloro-1H-pyrrol-2-yl)ethan-1-one (CAS 51333-63-2) is a high-purity analytical reference standard with the molecular formula C6H6ClNO and a molecular weight of 143.57 g/mol.
Based on its molecular formula C6H6ClNO, 1-(4-Chloro-1H-pyrrol-2-yl)ethan-1-one contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 143.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C6H6ClNO |
| Molecular Weight | 143.57 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1971 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 5-Chloro-6-methylpyridin-2-ol (CAS 103997-23-5)
- N-(3-Chloro-phenyl)hydroxylamine (CAS 10468-17-4)
- (5-Chloro pyrazin-2-yl) Methanamine (CAS 1060814-53-0)
- 4-Chloro-3-methylpyridine 1-Oxide (CAS 1073-34-3)
- 2-Chloro-3-hydrazinylpyridine (CAS 117087-45-3)
- 5-Chloro-2-methylpyridin-4(1H)-one (CAS 1196157-19-3)
- 2-Chloro-1-(1H-pyrrol-3-yl)ethanone (CAS 122450-28-6)
- 3-Chloro-2-methylpyridin-4-ol (CAS 1227499-23-1)
Recommended Standards
- (6-Chloropyrimidin-4-yl)methanamine (CAS 933702-18-2)
- 1-Methyl-1H-pyrrole-2-carbonyl chloride (CAS 26214-68-6)
- (6-chloropyridazin-3-yl)methanamine (CAS 871826-15-2)
- 2-(chloromethyl)-4-Pyrimidinamine (9CI) (CAS 79651-35-7)
- 2,5-Dichlorobenzenethiol (CAS 5858-18-4)
- 4-(2,6-Difluorobenzoyl)-N-(3-(trifluoromethyl)benzyl)-1H-pyrrole-2-carboxamide (CAS 439112-13-7)
- 2-(1H-Pyrrol-1-yl)-6-(trifluoromethyl)aniline (CAS 866042-07-1)
- 2-Amino-3-(4-(sulfooxy)phenyl)propanoic acid (CAS 146386-55-2)
- Methyl 4-Amino-2-ethylbenzoate (CAS 1211589-24-0)
- 2-(2,6-dioxo-3-piperidyl)-5-(5-hydroxypentylamino)isoindoline-1,3-dione (CAS 2736496-58-3)
- Methyl N-(tert-butoxycarbonyl)-L-phenylalanyl-L-methioninate (CAS 40290-63-9)
- 3-Bromo-4,5-difluorobenzene-1,2-diamine (CAS 153505-35-2)
- N-[(4-methoxyphenyl)methyl]thieno[2,3-d]pyrimidin-4-amine (CAS 63893-95-8)
- Fragment-[3-31]-Liraglutide (CAS CATO-C4X-199232)
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