4-(2-Aminoethyl)-5-ethyl-1H-pyrazol-3(2H)-one CAS 952958-76-8
| CAS No. | 952958-76-8 |
| Molecular Formula | C7H13N3O |
| Molecular Weight | 155.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(2-Aminoethyl)-5-ethyl-1H-pyrazol-3(2H)-one (CAS 952958-76-8), molecular formula C7H13N3O and molecular weight 155.20 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(2-Aminoethyl)-5-ethyl-1H-pyrazol-3(2H)-one (C7H13N3O) contains an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 155.20 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C7H13N3O |
| Molecular Weight | 155.20 g/mol |
| Appearance | 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 DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related Aminoethyl Standards
- 2-(4-(2-Aminoethyl)-1H-imidazol-1-yl)ethanol (CAS 1314965-12-2)
- 4-(2-Aminoethyl)-3,4-dimethyl-1H-pyrazol-5(4H)-one (CAS 933704-44-0)
- 5-(2-Aminoethyl)thiophene-2-carbaldehyde (CAS 93447-75-7)
- 4-(1-Aminoethyl)-2-fluorophenol (CAS 1030444-42-8)
- 2-(1-Aminoethyl)-4-fluorophenol (CAS 1094459-16-1)
- (S)-4-(1-Aminoethyl)-3-fluorophenol (CAS 1149387-92-7)
- 2-[(1S)-1-Aminoethyl]-5-fluorophenol (CAS 1228542-70-8)
- (s)-2-(1-Aminoethyl)-4-fluorophenol (CAS 1228550-42-2)
Recommended Standards
- 4-(3-Amino-1h-pyrazol-1-yl)butan-1-ol (CAS 84157-95-9)
- 4-((Dimethylamino)methyl)-5-methyl-1H-pyrazol-3-ol (CAS 54952-59-9)
- 4-(3-Aminopropyl)-3-methyl-1H-pyrazol-5(4H)-one (CAS 937674-92-5)
- 3-Vinyl-quinoline (CAS 67752-31-2)
- 1-((2-(Trifluoromethyl)phenyl)sulfonyl)piperidine-4-carboxamide (CAS 878909-79-6)
- 4-Chloro-1-methyl-2-oxo-1,2-dihydroquinoline-3-carboxylic acid (CAS 84088-52-8)
- N-Ethyl-4-phenylthiazol-2-amine (CAS 5039-15-6)
- Benzyl (3-fluoro-4-(4-phenylpiperazin-1-yl)phenyl)carbamate (CAS 556801-41-3)
- (3-Fluorobenzyl)valine (CAS 1396962-78-9)
- 3,4,4-Trimethylpentanoic acid (CAS 75177-71-8)
- 2-(Hydroxymethyl)-5-vinylpyridazin-3(2H)-one (CAS 825634-19-3)
- 6-Boc-1,4,5,7-tetrahydropyrazolo[3,4-c]pyridine-3-carboxylic acid (CAS 821785-76-6)
- 2-(5-Chloro-2-nitrophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1073353-99-7)
- Semaglutide Impurity 16 (CAS CATO-C4X-222616)
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