Knowledge hub
Articles from the Molekula editorial team
Coverage of chemistry, regulatory updates, methods, supply-chain insight, and product spotlights. New articles published daily.
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Method
Mechanochemistry and Solvent‑Free Synthesis: Practical Gains for Pharmaceutical Process Chemists
Mechanochemistry enables solvent‑free reactions that cut waste, lower cost and improve safety for pharmaceutical process chemists. By using mechanical energy instead of bulk solvents, it can accelerate reaction rates, simplify work‑up and facilitate scale‑up while remaining compatible with GMP standards.
Oct 29, 2026 · 4 min read -
Method
Residual solvent testing under USP <467>: headspace GC method pitfalls and fixes
USP <467> requires quantitative headspace GC for residual solvents. Common pitfalls include inadequate equilibration, incorrect inlet temperature, matrix effects and calibration drift. Addressing these through proper sample preparation, method optimisation, regular system suitability checks and robust data handling ensures compliant, reproducible results.
Oct 28, 2026 · 4 min read -
Method
Deuterated Solvents for NMR: Grade Selection, Water Content and Storage Best Practices
Deuterated solvents for NMR are supplied in analytical, spectroscopic and ultra‑high‑purity grades, each with defined isotopic and water specifications. Typical water levels range from <0.01 % (ultra‑high‑purity) to 0.1 % (analytical). Proper storage—sealed, inert atmosphere, low temperature—preserves isotopic integrity and prevents moisture uptake.
Oct 22, 2026 · 5 min read -
Method
Choosing the optimal cryoprotectant cocktail for high‑throughput cell‑sorting applications
Selecting a cryoprotectant cocktail for high‑throughput cell sorting requires balancing cell viability, post‑thaw functionality, and compatibility with sorting buffers. Key considerations include permeating versus non‑permeating agents, concentration, cooling rate, and downstream assay requirements. Molekula supplies GMP‑grade reagents that meet these criteria.
Oct 11, 2026 · 5 min read -
Method
Circular economy approaches to recycle spent chromatography solvents in pharmaceutical laboratories
Recycling spent chromatography solvents in pharma labs reduces waste, cuts costs and supports sustainability. Techniques such as distillation, membrane filtration and solvent‑exchange can recover 80–95 % of solvents like acetonitrile, methanol and water, provided they meet USP/EP purity specifications and are managed under REACH and ISO guidelines.
Oct 9, 2026 · 5 min read -
Method
Best practices for handling and storing moisture‑sensitive organolithium reagents
Organolithium reagents must be stored under inert gas at low temperature, handled in a dry, oxygen‑free environment, and transferred using air‑free techniques. Use compatible solvents, sealed ampoules or Schlenk tubes, and monitor for moisture ingress to maintain reactivity and safety.
Oct 8, 2026 · 4 min read -
Method
Implementing AI‑driven demand forecasting for specialty amino‑acid inventories
AI‑driven demand forecasting uses machine‑learning models to predict future consumption of specialty amino acids, reducing stock‑outs and excess inventory. By integrating historical sales, production schedules, and market indicators, companies can achieve more accurate safety‑stock calculations and improve cash flow while complying with REACH and GMP requirements.
Oct 6, 2026 · 5 min read -
Method
Green synthesis of heterocyclic scaffolds using bio‑derived solvents: a buyer’s guide
Bio‑derived solvents such as 2‑methyltetrahydrofuran, cyclopentyl methyl ether and ethyl lactate enable greener routes to heterocyclic scaffolds, offering lower toxicity, reduced VOC emissions and comparable yields to conventional solvents. Selecting the right solvent requires balancing polarity, boiling point, recyclability and regulatory status.
Oct 4, 2026 · 6 min read -
Method
Choosing the right fluorinated surfactant for microfluidic chip fabrication in 2026
Selecting a fluorinated surfactant for microfluidic chips in 2026 requires balancing droplet stability, biocompatibility, and regulatory compliance. Key factors include HLB value, fluorocarbon chain length, and the presence of functional end‑groups; recent literature highlights perfluoro‑octyl‑polyethylene glycol (PF‑OPEG) and fluorinated block copolymers as leading options.
Sep 27, 2026 · 5 min read -
Method
Best practices for validating high‑throughput LC‑MS methods for impurity profiling
High‑throughput LC‑MS impurity profiling requires systematic validation of accuracy, precision, linearity, limits of detection, and system suitability. Follow ICH Q2(R1) criteria, use cross‑validation with orthogonal techniques, and document all parameters to ensure reproducible, regulatory‑compliant results.
Sep 26, 2026 · 4 min read -
Method
Lifecycle Assessment of Biodegradable Polymers for Single‑Use Bioprocessing Equipment
Biodegradable polymers such as polylactide (PLA) and polyhydroxyalkanoates (PHA) can lower the environmental impact of single‑use bioprocessing equipment. Lifecycle assessments show reductions of up to 30 % in global warming potential and significant waste‑diversion benefits, provided appropriate disposal pathways are used.
Sep 24, 2026 · 4 min read -
Method
Implementing Real‑Time Impurity Monitoring for Nitrosamine‑Prone Intermediates Using PAT Tools
Real‑time impurity monitoring of nitrosamine‑prone intermediates can be achieved with PAT technologies such as inline HPLC, GC‑MS, and NIR, combined with AI‑driven data analytics. Key steps include selecting appropriate sensors, establishing calibration models, meeting USP and REACH limits, and integrating feedback control to keep nitrosamine levels below 0.5 ppm.
Aug 29, 2026 · 5 min read