Description

(R,S)-Fenoterol is a synthetic β-2 adrenergic receptor agonist, a key pharmaceutical intermediate and reference standard. Its primary commercial value lies in its role in the research, development, and quality control of bronchodilator medications. This compound is essential for pharmaceutical manufacturers, analytical laboratories, and research institutions focused on respiratory therapeutics and adrenergic pharmacology.

Application

• Pharmaceutical Intermediate: Critical synthesis building block for active pharmaceutical ingredients (APIs) in bronchodilator formulations.
• Analytical Reference Standard: Used in HPLC, GC, and other chromatographic methods for the identification, assay, and impurity profiling of fenoterol-based drugs.
• Pharmacological Research: A vital tool for in vitro and in vivo studies investigating β-2 adrenoceptor activity, selectivity, and signaling pathways.
• Quality Control & Assurance: Serves as a system suitability standard and a comparator in pharmaceutical quality control laboratories to ensure batch-to-batch consistency.
• Method Development & Validation: Employed in the development and validation of analytical methods for regulatory submissions (e.g., FDA, EMA).
• Impurity Standard: Used to qualify and quantify related substances and degradation products in fenoterol drug substances and finished products.

Basic Information

Product Name	(R,S)-Fenoterol
CAS No.	391234-97-2
Molecular Formula	C17H21NO4
Molecular Weight	303.35 g/mol
Synonyms	Fenoterol Racemate; (±)-Fenoterol; rac-Fenoterol; 1-(3,5-Dihydroxyphenyl)-2-[[(R*,S*)-p-hydroxy-α-methylphenethyl]amino]ethanol; 5-[1-Hydroxy-2-[[2-(4-hydroxyphenyl)-1-methylethyl]amino]ethyl]-1,3-benzenediol; Berotec Intermediate; Th 1165a (racemate)
EINECS	Contact for details

Quality Control

Our (R,S)-Fenoterol is produced under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including identity confirmation, purity assay, and impurity profiling via advanced techniques like HPLC and GC. We provide full traceability and Certificates of Analysis (COA) that detail all test results, ensuring compliance with research and pharmaceutical intermediate standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment. For long-term storage, consider desiccant use and inert atmosphere to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 0.5%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.