Penbutolol
- Product Name
- Penbutolol
- CAS No.
- 38363-40-5
- Chemical Name
- Penbutolol
- Synonyms
- C07416;HOE 893;HOE 893D;Betapressin;l-Penbutolol;Levopenbutol;Levopenbutolol;(S)-Penbutolol;(-)-Penbutolol;(-)-(S)-Penbutolol
- CBNumber
- CB2875284
- Molecular Formula
- C18H29NO2
- Formula Weight
- 291.43
- MOL File
- 38363-40-5.mol
Penbutolol Property
- Melting point:
- 68-72°
- alpha
- 20D -11.5° (c = 1 in methanol)
- Boiling point:
- 433.43°C (rough estimate)
- Density
- 1.0344 (rough estimate)
- refractive index
- 1.5000 (estimate)
- pka
- 9.3 (1.5 mmol/l in 25% ethanol)
- color
- Crystals
- Water Solubility
- 7g/L(room temperature)
Safety
- Toxicity
- LD50 oral in rabbit: 300mg/kg
Penbutolol Chemical Properties,Usage,Production
Originator
Betapressin, Hoechst , W. Germany ,1980
Uses
Anti-adrenergic (β-receptor).
Definition
ChEBI: Penbutolol is a member of ethanolamines.
Manufacturing Process
21.8 g (0.1 mol) of 1,2-epoxy-3-(2'-cyclopentylphenoxy)propane, boiling at 113°C to 115°C/0.2 mm Hg (prepared from 2-cyclopentylphenol and epichlorhydrin in the presence of alkali) were dissolved in 250 ml of ethanol; to this solution, there were added dropwise, while stirring.8.9 g (0.15 mol) of t-butylamine. The reaction mixture was stirred for 2 hours at 60°C and then the solvent and the excess t-butylamine were removed by distillation. The residue which had been purified via the aqueous hydrochloride, crystallized, after removal of the ether by evaporation, upon rubbing or inoculation and yielded, after recrystallization from n-heptane, the 1-t-butylamino-2-hydroxy3-(2'-cyclopentylphenoxy)propane which was found to melt at 69°C to 70°C.
brand name
Levatol(Schwarz Pharma).
Therapeutic Function
Beta-adrenergic blocker
Safety Profile
Poison by ingestion and intravenous routes. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx.
Penbutolol Preparation Products And Raw materials
Raw materials
Preparation Products
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