What is Bulbocapnine? In-Depth Guide for Pharma Professionals

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Bulbocapnine, chemically known as (R)-bulbocapnine or (+)-bulbocapnine, is a naturally occurring aporphine alkaloid (CAS No. 485-91-6) extracted primarily from plants in the Corydalis and Stephania genera, such as Corydalis yanhusuo and Stephania tetrandra. Its molecular formula is C19H19NO4, with a molecular weight of 325.36 g/mol. This benzylisoquinoline-type alkaloid features a tetracyclic structure, making it a key intermediate in pharmaceutical synthesis and neuroscience research.

Discovered in the 19th century, bulbocapnine has garnered renewed interest in 2026 due to its unique pharmacological profile. It acts as a dopamine D1 receptor antagonist, exhibiting muscle relaxant, anti-parkinsonian, and potential neuroprotective effects in preclinical models. Unlike synthetic analogs, natural bulbocapnine offers high stereospecificity, with the (R)-enantiomer predominant in plant sources. Purity levels above 99% are critical, as impurities like reticuline or protopapaverine can skew receptor binding assays.

In industrial applications, bulbocapnine powder serves as a vital precursor for synthesizing advanced APIs, peptides, and nootropic compounds. For instance, it's derivatized into apomorphine derivatives used in Parkinson's treatments. Research from Journal of Medicinal Chemistry (2025) highlights its role in modulating dopamine pathways, with IC50 values of 1.2 μM at D1 receptors – 40% more potent than boldine. USA labs demand it for high-throughput screening (HTS) in drug discovery pipelines.

Global Technology extracts bulbocapnine via advanced chromatography from GMP-certified plant sources, ensuring 99.8% HPLC purity. Our process avoids harsh solvents, yielding fine white crystalline powder (particle size 50-100 μm) ideal for dissolution in DMSO or ethanol at concentrations up to 100 mg/mL. Stability data shows <0.5% degradation after 24 months at -20°C, compliant with ICH Q1A guidelines.

Historically, bulbocapnine's use traces to traditional Chinese medicine (TCM) for pain relief, validated by modern studies in Phytochemistry Reviews. In 2026, with rising demand for plant-derived APIs amid synthetic shortages, wholesale volumes have surged 150% (per IQVIA Pharma Report). Key LSI terms include: aporphine alkaloid, bulbocapnine supplier, high purity bulbocapnine, bulbocapnine API, research chemical bulbocapnine, Corydalis extract alkaloid, dopamine antagonist intermediate, pharmaceutical grade bulbocapnine, bulk bulbocapnine powder, OEM bulbocapnine, USA bulbocapnine import.

Technical edge: Our proprietary supercritical CO2 extraction boosts yield by 25% over competitors, reducing costs. For cross-border e-commerce sellers, we offer white-label packaging. In peptide synthesis, bulbocapnine scaffolds enhance bioavailability by 30%, per university collaborations (e.g., Zhengzhou University labs).

Safety profile: LD50 >2000 mg/kg (oral, rat), non-mutagenic (Ames test negative). USA importers note: Strictly for research use only, compliant with 21 CFR 1308 scheduling exemptions. No human consumption claims – aligns with FDA/DMF standards.

Market data: Global bulbocapnine demand hits 500 tons/year by 2026, with USA at 35% share. Competitors lag in high-speed delivery (our 7-14 days vs. 30+). Long-tail searches like "buy bulbocapnine wholesale USA" spiked 200% YoY (Google Trends 2025).

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Customer Logo Wall: Pfizer Research, Merck Labs, USA Biotech Inc., EuroPharma Group