(R)-3-Acetyl-5-((S)-sec-butyl)-4-hydroxy-1H-pyrrol-2(5H)-one CAS 36576-19-9
| CAS No. | 36576-19-9 |
| Molecular Formula | C10H15NO3 |
| Molecular Weight | 197.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(R)-3-Acetyl-5-((S)-sec-butyl)-4-hydroxy-1H-pyrrol-2(5H)-one (CAS 36576-19-9), molecular formula C10H15NO3 and molecular weight 197.23 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, (R)-3-Acetyl-5-((S)-sec-butyl)-4-hydroxy-1H-pyrrol-2(5H)-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 197.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C10H15NO3 |
| Molecular Weight | 197.23 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, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (R)-1-Oxo-2-azaspiro[4.5]decane-3-carboxylic acid (CAS 2165825-89-6)
- (S)-(+)-1-(1-Naphthyl)ethyl Isocyanate (CAS 73671-79-1)
- (N-Crotonyl)-(4R)-isopropyl-2-oxazolidinone (CAS 90719-29-2)
- (S)-2-Amino-2-(3,5-dimethoxyphenyl)ethanol (CAS 696598-88-6)
- N-(3-Amino-4-chlorophenyl)-2-furamide (CAS 926265-06-7)
- N-Cyclobutyl-5-methylisoxazol-4-amine (CAS 600699-32-9)
- 2-(2-Ethyl-1H-pyrrol-1-yl)acetic acid (CAS 153396-82-8)
- 8-Fluoroisoquinolin-1-amine (CAS 1369071-72-6)
- 2-tert-butyl 3-ethyl isoquinoline-2,3(1H)-dicarboxylate (CAS 298209-94-6)
- (E)-N-Hydroxy-3-(isoxazol-5-yl)acrylimidamide (CAS 51791-46-9)
- (1-(4-Bromophenyl)-1H-imidazol-4-yl)methanamine (CAS 1368687-14-2)
- Isopentyl 3,7-dichloroquinoline-8-carboxylate (CAS 381686-77-7)
- 2-Phenyl-1-(p-tolyl)quinazolin-4(1H)-one (CAS 58217-26-8)
- Semaglutide (CAS 910463-68-2（free base）)
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