Penbutolol Hydrochloride CAS 28163-36-2
| CAS No. | 28163-36-2 |
| Molecular Formula | C18H29NO2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Penbutolol Hydrochloride (CAS 28163-36-2), molecular formula C18H29NO2HCl and molecular weight 327.89 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Penbutolol Hydrochloride (C18H29NO2HCl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 327.89 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C18H29NO2 HCl |
| Molecular Weight | 327.89 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Penbutolol Standards
Recommended Standards
- Paeonoside (CAS 20309-70-0)
- 3-[1-(3,4-Dimethyl-phenyl)-2,5-dimethyl-1H-pyrrol-3-yl]-3-oxo-propionitrile (CAS 736146-05-7)
- 2-Amino-N-ethyl-N-((S)-1-methylpyrrolidin-3-yl)propanamide (CAS 1354025-26-5)
- Methyl 6-(3,4-dihydroisoquinolin-2(1H)-yl)nicotinate (CAS 1355201-90-9)
- 1-(4-bromo-1H-pyrazol-1-yl)-2-methylpropan-2-ol (CAS 1008510-87-9)
- trans-3-fluorocyclobutane-1-carboxylic acid (CAS 123812-79-3)
- 2-(4-(Difluoromethyl)-2-fluoro-5-nitropyridin-3-yl)acetic acid (CAS 1805538-15-1)
- 1,2-Dihydroxybenzene-d6 (CAS 202656-22-2)
- 4-Bromo-N-cyclobutyl-3-methylaniline (CAS 1247401-52-0)
- Insulin Glulisine (CAS 207748-29-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com