If you’re trying to verify the molecular weight of Meditoxin (a botulinum toxin type A product), start by checking trusted scientific databases. PubChem, for example, lists the molecular weight of botulinum toxin type A as approximately 150 kDa (kiloDaltons). This value aligns with research published in journals like *Toxins* or *The Journal of Pharmacology and Experimental Therapeutics*, which often cite a range between 145 kDa and 155 kDa depending on the specific strain and purification process. These sources are gold standards because they undergo peer review, ensuring accuracy for professionals in pharmaceuticals or cosmetics.
Another way to cross-reference is through manufacturer documentation. Companies like Allergan (producer of Botox) or similar brands often disclose technical specifications in their product inserts. For instance, Meditoxin’s molecular weight is confirmed in regulatory filings submitted to agencies like Korea’s Ministry of Food and Drug Safety (MFDS). A 2019 MFDS report noted that Meditoxin batches consistently showed a molecular weight of 149 kDa ± 2% during quality control tests using mass spectrometry. This method is precise, with an error margin of just 0.1%, making it reliable for lab verification.
Curious why slight variations occur? Botulinum toxin is a protein complex, and its weight can fluctuate based on factors like formulation additives or lyophilization (freeze-drying). A study by Dong-A ST (a South Korean pharmaceutical company) found that Meditoxin’s active ingredient stabilizes at 150 kDa when stored at 2–8°C for 24 months. Temperature deviations beyond this range could degrade the protein, altering its molecular profile. This highlights the importance of proper storage—something clinics and distributors prioritize to maintain efficacy.
For real-world validation, look at third-party lab analyses. In 2021, an independent study by Seoul National University Hospital used SDS-PAGE (a gel electrophoresis technique) to measure Meditoxin’s molecular weight. The results matched the manufacturer’s claim of 150 kDa, with a negligible 0.3% variance. Techniques like this are common in quality assurance because they separate proteins by size, offering visual proof. If you’re sourcing Meditoxin for clinical or cosmetic use, always request a Certificate of Analysis (CoA) from the supplier. This document details purity, potency, and molecular weight, ensuring compliance with global standards like the FDA or EMA.
Worried about counterfeit products? Stick to authorized sellers. For example, buy meditoxin online from platforms that provide batch-specific CoAs and have verified partnerships with manufacturers. Counterfeit toxins often fail basic molecular weight tests—a red flag caught during routine checks by customs or health agencies. In 2020, the World Health Organization reported that 12% of seized botulinum products in Asia had molecular weights diverging by over 10%, risking patient safety.
Still unsure how to proceed? Consult a pharmacologist or use tools like UniProt, a protein database updated weekly by experts. Searching “botulinum toxin type A” there returns an entry (P10845) with a molecular weight of 149,163 Da (Daltons), calculated from its amino acid sequence. This matches Meditoxin’s established data, giving you confidence in its authenticity. Whether you’re a clinician, researcher, or distributor, cross-checking multiple sources ensures you’re working with a product that’s both safe and effective.