Description

Rac Formoterol o-Sulfate CAS NO 250336-08-4 is a high-purity chemical reference standard and synthetic intermediate of significant importance in pharmaceutical research and development. This compound is critical for analytical method development, quality control, and the synthesis of active pharmaceutical ingredients (APIs). It is primarily utilized by research institutions, analytical laboratories, and pharmaceutical manufacturers engaged in the development and production of respiratory medications.

Application

• Pharmaceutical Reference Standard: Used for the calibration of analytical instruments, method validation, and quality control testing of formoterol-based drug substances and products.
• Active Pharmaceutical Ingredient (API) Intermediate: Serves as a key synthetic building block in the production of formoterol fumarate and related bronchodilator medications.
• Biochemical Research: Employed in pharmacological studies to investigate β-2 adrenergic receptor activity and mechanisms of action for respiratory therapies.
• Analytical Chemistry: Acts as a critical component in impurity profiling, stability studies, and comparative analyses for regulatory submissions.
• Process Development & Scale-up: Used in optimizing synthetic routes and manufacturing processes for formoterol derivatives in a GMP environment.

Basic Information

Product Name	Rac Formoterol o-Sulfate
CAS No.	250336-08-4
Molecular Formula	C19H24N2O4 • H2SO4
Molecular Weight	440.48 g/mol
Synonyms	Formoterol Sulfate; (±)-Formoterol Sulfate; Rac-Formoterol Hemisulfate; (R*,R*)-(±)-N-[2-Hydroxy-5-[1-hydroxy-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]formamide Sulfate; Formoterol o-Sulfate; 250336-08-4; BD 40A Sulfate
EINECS	Contact for details

Quality Control

Our Rac Formoterol o-Sulfate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product is characterized and tested using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each batch to support your regulatory and research requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in a desiccated environment to maintain stability and purity.

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%
Water Content (KF)	≤2.0%
Residue on Ignition	≤0.1%
Related Substances (HPLC)	Individual impurity ≤0.5%; Total impurities ≤2.0%

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