Synephrine Hydrochloride (Synephrine HCl)

Synephrine Hydrochloride (Synephrine HCl)

High-purity synthetic protoalkaloid for thermogenic and metabolic formulations

Appearance: Light white or white crystals
CAS Number: 5985-28-4
Molecular Formula: C₉H₁₃NO₂ · HCl
Molecular Weight: 203.67

01Product Description

Synephrine Hydrochloride is a high-purity synthetic protoalkaloid engineered for advanced weight management, sports nutrition, and metabolic formulations. Structurally identical to the naturally occurring active compound found in bitter orange (Citrus aurantium), synthetically produced Synephrine HCl offers superior batch-to-batch consistency, freedom from botanical contaminants, and a scalable supply chain.

Functioning as a selective adrenergic receptor modulator, Synephrine HCl specifically targets β3-adrenergic receptors to stimulate lipolysis and metabolic thermogenesis without the severe central nervous system stimulant side effects associated with ephedrine or non-selective agents. Its exceptional purity, stability, and proven efficacy make it an ideal cornerstone ingredient for modern pre-workout supplements, thermogenic fat burners, and energy-support matrices.

02Product Specifications

Test ItemsSpecificationsTest Method
Active Ingredients
Assay98.0% MinHPLC
Physical Control
Loss on drying0.5% MaxCP2005
Residue on ignition0.5% MaxCP2005
Chemical Control
As1ppm MaxICP-MS
Hg0.1ppm MaxICP-MS
Cd0.5ppm MaxICP-MS
Pb0.5ppm MaxICP-MS
Heavy Metals10ppm MaxAtomic Absorption
Microbiology Control
Total Plate Count1000cfu/g MaxUSP
Moulds & Yeast100cfu/g MaxUSP

03Product Process and Advantages

  • Advanced Organic Synthesis: Produced via state-of-the-art chemical synthesis routes, avoiding agricultural pesticide residues, seasonal botanical fluctuations, and supply shortages inherent to plant extraction.
  • High Purity & Lot Consistency: Multi-stage crystallization and purification ensure a minimum 98.0% assay with strictly controlled impurities, guaranteeing predictable performance in commercial manufacturing.
  • Robust Stability: The crystalline hydrochloride salt form exhibits excellent thermal and moisture stability, simplifying handling during high-speed capsule filling, powder blending, and tablet compression.
  • Strict Quality & Regulatory Compliance: Manufactured in facilities operating under cGMP and ISO quality management systems, complete with comprehensive analytical documentation and global regulatory support.
  • Cost-Effective & Scalable Supply: Industrial-scale chemical synthesis provides stable large-volume production capacity, delivering premium quality at highly competitive market pricing.

04Product Functions and Mechanisms

  • Stimulation of Thermogenesis and Lipolysis: Synephrine HCl acts as a selective agonist at β3-adrenergic receptors located primarily on adipose tissue. Activation stimulates adenylate cyclase, increasing intracellular cyclic adenosine monophosphate (cAMP) levels and activating hormone-sensitive lipase (HSL). This cascade accelerates the breakdown of stored triglycerides into free fatty acids (FFA) for mitochondrial oxidation.
  • Metabolic Rate and Energy Expenditure Enhancement: Research demonstrates that acute and chronic ingestion of synephrine significantly increases energy expenditure and resting metabolic oxidation rates in human subjects. By moderately stimulating lipid utilization over carbohydrate oxidation, it helps preserve lean muscle mass during energy-restricted diets.
  • Appetite Regulation and Metabolic Support: Beyond direct lipolysis, Synephrine HCl interacts moderately with central neurotransmitter pathways involved in satiety signaling. By supporting blood glucose stability and modulating metabolic energy turnover, it aids in curbing caloric intake during weight-loss programs.
  • Sports Performance and Focus Support: In athletic formulations, Synephrine HCl supports alertness, mental focus, and perceived exertion thresholds during endurance and resistance training. Because it does not cause profound vasoconstriction or tachycardia, athletes benefit from heightened stamina and metabolic efficiency.

05Typical Formulation Combinations

  • Caffeine Anhydrous: Enhances thermogenic synergy and mental alertness through adenosine receptor antagonism.
  • Green Tea Extract (EGCG): Promotes prolonged fat oxidation and provides antioxidant cellular support.
  • L-Carnitine Tartrate: Facilitates the transport of free fatty acids across the inner mitochondrial membrane for beta-oxidation.
  • Capsaicin / Black Pepper Extract (Piperine): Improves systemic bioavailability and induces thermogenic upregulation.

06Applications

  • Dietary Supplements: Widely formulated into weight management capsules, thermogenic fat burners, and daily metabolic activator tablets.
  • Sports Nutrition: Incorporated into pre-workout powders, energy complexes, and endurance formulations to enhance physical performance and fat utilization.
  • Functional Foods & Beverages: Applied in low-calorie weight-loss shakes, functional fitness waters, and metabolic energy drinks.
  • Nutraceutical Research: Utilized in advanced longevity and metabolic health research exploring non-stimulant adrenergic modulators.

07Packaging & Storage

Packaging Specifications: 25 kg / fiber drum, or customized as per customer requirements.

Storage Conditions: Store in a cool and dry place, in a tightly sealed container, keep away from strong light and heat.

Shelf Life: 24 months

08Frequently Asked Questions

What is the CAS number and purity of your synephrine hydrochloride?

Synephrine Hydrochloride is CAS 5985-28-4 (C9H13NO2 · HCl), supplied at 98.0% minimum assay by HPLC as light white to white crystals.

Is it synthetic or extracted from bitter orange?

It is produced by chemical synthesis. The molecule is structurally identical to the synephrine found in bitter orange (Citrus aurantium), but the synthetic route removes pesticide residues, seasonal botanical variability and supply risk, and delivers far tighter batch-to-batch consistency.

How does it differ from ephedrine-type stimulants?

Synephrine HCl is a selective β3-adrenergic agonist acting mainly on adipose tissue, so it drives thermogenesis and lipolysis without the profound vasoconstriction and central stimulation associated with ephedrine and non-selective agents.

What documentation, packaging and delivery are available?

Every lot ships with a batch COA covering assay, heavy metals by ICP-MS and microbiology, plus MSDS and TSE/BSE-free and allergen statements. Standard packaging is 25 kg fiber drums; stock is held in our Los Angeles, CA warehouse — contact idusc@aidubio.com for MOQ and pricing.

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Warehouse Address: Los Angeles, CA, USA

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