Explore our cGMP-compliant chemical portfolio engineered for global pharmaceutical and research requirements.
Comprehensive analysis on procurement strategies, chemical synthesis, regulatory compliance, and market trends for B2B active pharmaceutical ingredient buyers.
Loratadine (CAS NO: 79794-75-5) remains a cornerstone active pharmaceutical ingredient in global immunology and respiratory therapies. As a selective, peripheral H1-receptor antagonist, Loratadine provides non-sedating relief for allergic rhinitis, chronic idiopathic urticaria, and associated dermatological pathologies. Its prolonged terminal elimination half-life (~8.4 hours, with active metabolite Desloratadine extending to 28 hours) establishes it as a preferred molecule for once-daily solid oral dosage formulations worldwide.
Driven by rising global incidence of seasonal allergies and expanding OTC accessibility across emerging markets in Latin America, Asia-Pacific, and Africa, global demand for Loratadine raw API material exceeds 1,500 metric tons annually. Strategic B2B pharmaceutical procurement teams prioritize manufacturers capable of providing consistent particle size distribution (PSD), ultra-low impurity profiles compliant with EP/USP monographs, and full regulatory DMF dossiers.
Our Loratadine manufacturing process conforms stringently to USP, EP, BP, and JP pharmacopeial standards. Commercial batches undergo extensive stability testing under ICH conditions (25°C/60% RH long-term, 40°C/75% RH accelerated). High-Performance Liquid Chromatography (HPLC) assay values consistently exceed 99.5%, while individual unknown impurities are kept strictly below 0.05%, guaranteeing maximum bioequivalence for generic drug submissions.
Essential physicochemical metrics for pharmaceutical formulation engineers and analytical QA managers:
| Parameter | Pharmacopeial Requirement (USP/EP) | Gentolex Factory Standard | Analytical Method |
|---|---|---|---|
| Chemical Name | Ethyl 4-(8-chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)piperidine-1-carboxylate | Conforms to Structure | FT-IR / 1H-NMR / Mass Spec |
| CAS Registry Number | 79794-75-5 | 79794-75-5 | N/A |
| Appearance | White or almost white crystalline powder | White Crystalline Powder | Visual Inspection |
| Assay (Anhydrous Basis) | 98.5% – 101.0% | 99.6% – 100.4% | HPLC (USP Monograph) |
| Melting Point | 134.0°C – 137.0°C | 134.5°C – 136.2°C | Capillary Melting Apparatus |
| Related Substances (Impurities) | Any Individual Impurity ≤ 0.10% Total Impurities ≤ 0.30% |
Individual Impurity < 0.05% Total Impurities < 0.15% |
HPLC gradient method |
| Residue on Ignition / Heavy Metals | ≤ 0.1% | < 0.05% | USP <281> / ICP-OES |
| Particle Size (Micronized Grade) | As per customer agreement | D90 < 10 µm (Custom PSD available) | Laser Diffraction (Malvern) |
Advanced chemical engineering workflows that guarantee scale-up reproducibility, environmental sustainability, and yield optimization.
Our industrial synthesis route starts from 8-chloro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one. Through a Grignard reaction with N-methylpiperidin-4-yl magnesium chloride, followed by dehydration and carbamylation with ethyl chloroformate, we achieve high regioselectivity. By implementing phase-transfer catalysis (PTC) and continuous flow reactors, reaction yields are increased by 18% compared to traditional batch methods.
Genotoxic impurities and related substances (e.g., Impurity A: 8-chloro-11-(piperidin-4-ylidene)-611-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine) are strictly monitored using LC-MS/MS during intermediate isolation. Precise temperature profiling and pH adjustments during crystallisation guarantee that final active drug substances contain zero detectable nitrosamines or residual chlorinated solvents above ICH Q3C Class 2 limits.
Formulation performance heavily depends on active API dissolution rates. Gentolex operates air-jet milling facilities capable of delivering microfine powders with precise particle size distribution targets. Whether your final dosage form is a fast-dissolving oral film (ODF), chewable tablet, or oral liquid suspension, we offer tailor-made PSD profiles ($D_{50}$ and $D_{90}$) to optimize bioavailability.
Leveraging vertical raw material integration, chemical industrial cluster efficiencies, and strategic global logistics network support.
China accounts for over 70% of global basic chemical precursor manufacturing. Gentolex secures long-term strategic contracts with tier-1 basic chemical suppliers for key starting materials (KSMs), protecting our international buying partners from unexpected market volatility, price spikes, or supply chain bottlenecks. This upstream integration allows us to maintain stable, year-round production schedules without interruption.
Our core production ecosystem encompasses over 250,000 square meters of standardized chemical manufacturing area. Incorporating automated solvent recovery units, high-efficiency thermal oxidizers, and smart energy-monitoring grids, our factories reduce operational overhead while lowering our carbon footprint. This economies of scale directly translates into significant cost savings passed on to global formulation companies.
From human health generic drugs to veterinary pharmaceuticals, Loratadine API serves versatile dosage architectures.
Loratadine 10mg immediate-release tablets and Orally Disintegrating Tablets (ODTs) require raw API materials with superior compressibility and dissolution kinetics. Our direct compression (DC) grade Loratadine minimizes excipient requirements and speeds up disintegration times to under 30 seconds.
Formulating clear, stable pediatric syrups (1mg/mL) demands high solubility control and low heavy metal traces. Gentolex supplies specialized liquid-grade Loratadine API that avoids crystallization in aqueous-glycerol solutions and eliminates metallic taste artifacts.
Popular dual-action therapies combine Loratadine with decongestants such as Pseudoephedrine Sulfate or Montelukast Sodium. Our technical consultation team assists client R&D teams in avoiding chemical incompatibility and optimizing dual-layer tablet compression processes.
Connecting global pharmaceutical enterprises with certified chemical products, FDF licensing, and supply chain reliability.
Our main services focus on supplying peptides APIs and Custom Peptides, FDF license out, Technical Support & Consultation, Product Line and Lab Setup, Sourcing & Supply Chain Solutions.
An overall factory construction area of 250,000 square meters under international standard to offer flexible, scalable and cost-effective solutions.
Gentolex offers an extensive range of APIs and intermediates for development study and commercial application with cGMP standard from long-term collaborations. Documents and Certificates are supported to customers worldwide.
Continuous process optimization, custom peptide synthesis, route scouting, and CRO/CDMO services tailored to contract manufacturing goals.
For those clients who prefer to avoid the complexity of dealing with multiple points of contact, we provide extra customized procurement services with the most superior and comprehensive supply chain sources.
Gentolex’s goal is to create opportunities connecting the world with better services and guaranteed products. Up to date, Gentolex Group has been serving customers from more than 10 countries, specially, representatives are established in Mexico and South Africa. Our main services focus on supplying peptides APIs and Custom Peptides, FDF license out, Technical Support & Consultation, Product Line and Lab Setup, Sourcing & Supply Chain Solutions.
View Details
Stay informed with technical literature, chemical research updates, and global market intelligence from Gentolex specialists.
Introduction to Selank Acetate API Selank Acetate API is a synthetic heptapeptide active pharmaceutical ingredient (API) composed of the amino acid sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro (TKPRPGP). Originally developed through neuropharmacological research, Selank is a derivative of the endogenous...
View Details
Trusted Thymosin Beta-4 API Manufacturer and Global Peptide Supplier As a professional Thymosin Beta-4 API manufacturer and supplier, we provide high-quality Thymosin Beta-4 peptide API solutions for biotechnology companies, pharmaceutical research organizations, and li...
View Details
Introduction BPC-157 API is a synthetic pentadecapeptide that has gained increasing attention in peptide research due to its potential biological activities related to tissue repair, gastrointestinal protection, angiogenesis, and inflammatory regulation. As a peptide ac...
View Details
With the continuous development of neuroscience, peptide technology, and life science research, neuroactive peptides have become an important area of scientific investigation. Semax, a synthetic peptide derived from an ACTH fragment, has attracted attention among researchers due to its unique mol...
View Details
SS-31 API, also known as Elamipretide, MTP-131, Bendavia, and SS31, is a synthetic mitochondria-targeting tetrapeptide designed to bind cardiolipin in the inner mitochondrial membrane. By stabilizing mitochondrial structure and supporting cellular bioenergetics, SS-31 ha...
View DetailsDirect answers to critical regulatory, logistics, and quality assurance queries from global procurement officers.
Every commercial batch of Loratadine active pharmaceutical ingredient is dispatched with a comprehensive Certificate of Analysis (CoA) referencing current USP/EP monographs, Material Safety Data Sheet (MSDS), Certificate of Origin (COO), and BSE/TSE-Free Declarations. For generic drug filing clients, we provide full access to Drug Master Files (DMF) registered with US FDA and CEP/COS documentation upon LOA execution.
Our standard MOQ for Loratadine API starts at 25 kg packaged in fiber drums with double PE liners. For feasibility studies, pilot-scale trial batches, or R&D formulation projects, sample quantities (100g to 1kg) can be dispatched via express air courier within 3-5 working days. Commercial production lead times range from 2 to 4 weeks depending on customized particle size requirements.
Gentolex operates localized representative hubs and logistics support channels, specifically in Mexico and South Africa. This physical presence allows us to streamline customs clearance, facilitate localized currency transactions, offer rapid technical support in regional time zones, and assist local pharmaceutical formulators with local sanitary registrations (e.g., COFEPRIS, SAHPRA).
Yes. Recognizing that particle size directly impacts dissolution kinetics and tablet compressibility, our manufacturing plants utilize specialized micronization systems. We can provide standard un-milled material, coarse granules for direct compression, or micronized powders ($D_{90} < 10\mu m$) suited for specialized respiratory or fast-dissolving delivery platforms.
We welcome desktop quality audits and physical cGMP facility inspections by client quality management teams or third-party accredited auditors. Our factories routinely undergo site inspections by regulatory authorities and maintain stringent Quality Management Systems (QMS) aligned with ICH Q7 standards.
Complete product catalog for specialized active pharmaceutical ingredients and therapeutic peptides.
