Description

Premium Industrial Grade Pseudoephedrine HCl – Your Trusted Bulk Chemical Supplier

 

Pseudoephedrine Hydrochloride represents a naturally occurring alkaloid and widely used decongestant that serves as a critical pharmaceutical compound and chemical precursor in organic synthesis. As the (1S,2S)-diastereomer of ephedrine, pseudoephedrine exhibits distinct pharmacological properties including reduced central nervous system penetration and enhanced selectivity for nasal decongestion. Biosynlab delivers pharmaceutical-grade pseudoephedrine HCl with certified ≥99.5% purity and high enantiomeric purity, supporting pharmaceutical research, formulation development, and licensed chemical synthesis across USA (DEA List I chemical licensed institutions), United Kingdom, European Union, and international markets.

The stereochemistry of pseudoephedrine is critical for its pharmacological profile, with the (1S,2S)-configuration providing effective nasal decongestion with minimal cardiovascular stimulation compared to ephedrine. This structural configuration, featuring a beta-hydroxy group on the phenethylamine backbone with the opposite stereochemistry to ephedrine, creates distinct pharmacokinetic properties including reduced blood-brain barrier penetration. Pharmaceutical manufacturers and research institutions in London, Berlin, Amsterdam, New York, and Basel rely on Biosynlab pseudoephedrine for decongestant formulation development, chiral synthesis research, and as a precursor for licensed pharmaceutical manufacturing.

Chemical Properties & Structural Characterization

Pseudoephedrine Hydrochloride belongs to the substituted phenethylamine chemical class, specifically the beta-hydroxyphenethylamine subclass. It is the (1S,2S)-diastereomer of ephedrine (1R,2S).

Key Structural Features:

• Core Scaffold: Beta-hydroxyphenethylamine backbone
• Substitutions: N-methyl, beta-hydroxy, alpha-methyl
• Stereochemistry: (1S,2S)-configuration (pseudoephedrine; ephedrine is 1R,2S)
• Diastereomer: Ephedrine and pseudoephedrine are diastereomers (not enantiomers)
• Salt Form: Hydrochloride (most common), sulfate, free base
• Physical State: Crystalline powder (HCl salt) or prismatic crystals

Analytical Characteristics:

• UV Absorption: 251 nm, 257 nm, 263 nm (fine structure, phenyl ring)
• Retention Time (HPLC): 5.5-6.2 minutes (C18 column, chiral separation)
• Chiral HPLC: Baseline separation from ephedrine and enantiomers
• Mass Spec m/z: 166.1 [M+H]+ (free base), 148.1 [M+H-H₂O]+, 133.1 [M+H-CH₃NH₂]+
• NMR Signatures: N-methyl doublet (2.4-2.6 ppm), methine proton (3.8-4.2 ppm), benzylic proton (4.6-5.0 ppm), phenyl protons (7.2-7.4 ppm), distinct from ephedrine

Research Applications & Scientific Utility

Pharmaceutical Research & Development:
Pseudoephedrine serves as a critical compound for:

• Nasal decongestant formulation development (Sudafed®)
• Extended-release formulation technology
• Combination therapy research (with antihistamines)
• Chiral synthesis and resolution methodology
• Prodrug and salt form optimization
• Bioavailability and pharmacokinetic studies
• Comparison with phenylephrine and other decongestants

Chemical Synthesis & Precursor Applications:

• Chiral auxiliary in asymmetric synthesis
• Precursor for licensed pharmaceutical manufacturing
• Building block for complex molecule synthesis
• Resolution agent for racemic mixtures
• Comparison with ephedrine in synthetic applications

Forensic & Regulatory Research:

• Precursor chemical monitoring (methamphetamine synthesis)
• Regulatory compliance studies
• Import/export control research
• Diversion monitoring programs
• Analytical method development for detection

Comparative Pharmacology:

• Ephedrine vs. pseudoephedrine pharmacology
• Cardiovascular effects comparison
• CNS penetration studies
• Nasal decongestion efficacy research
• Drug interaction studies

Synthesis & Quality Control Protocols

Biosynlab’s pseudoephedrine production adheres to rigorous pharmaceutical-grade standards:

Synthetic Route:

1. Starting Material: Fermentation from Ephedra or chiral synthesis
2. Resolution: Separation from ephedrine diastereomer mixture
3. Purification: Recrystallization and chromatography
4. Salt Formation: HCl salt preparation
5. Drying: Vacuum desiccation

Analytical Verification:

• Chiral HPLC: Enantiomeric excess >99% (1S,2S-pseudoephedrine)
• HPLC-PDA: Purity ≥99.5%, impurity profiling (ephedrine, related alkaloids) <0.5%
• ¹H NMR (400 MHz): Complete structural assignment, stereochemistry confirmation
• ¹³C NMR (100 MHz): Carbon environment verification
• Polarimetry: Specific rotation [α]D = +48.0° to +52.0° (c=1, H₂O)
• LC-MS/MS: Molecular weight confirmation
• FTIR-ATR: O-H stretch, N-H stretch, aromatic confirmation
• DSC: Melting point determination
• Residual Solvent: GC-HS per ICH Q3C guidelines
• Heavy Metals: ICP-MS for Class 1 and 2 elements

Batch Documentation:

• Certificate of Analysis (COA)
• Material Safety Data Sheet (MSDS)
• DEA List I documentation (USA)
• Stability testing data
• Chain of custody documentation

Packaging, Storage & Logistics

Primary Containment:

• Amber Type I borosilicate glass bottles (25g-1kg)
• PTFE-lined caps with tamper-evident seals
• Multiple indicating silica gel desiccant packets

Storage Specifications:

• Recommended: Room temperature (15-25°C), desiccated
• Stability: 36+ months at room temperature with proper handling
• Light Protection: Amber containers recommended

Handling Protocols:

• DEA List I facility required (USA)
• Comprehensive inventory tracking
• Fume hood recommended for bulk handling
• Personal protective equipment required