Buy Pharmaceutical Impurity Reference Standards by CAS Number | Spectrasynth

Comprehensive Guide to CAS Number–Based Pharmaceutical Impurities & Reference StandardsIntroductionIn today’s highly regulated pharmaceutical landscape, precision in impurity identification is essential. Each impurity used in research, manufacturing, or quality control is uniquely identified by its CAS (Chemical Abstracts Service) number, ensuring global recognition and traceability.At Spectrasynth, we specialize in delivering high-purity reference standards and impurities, empowering pharmaceutical companies, CROs, and QC laboratories to meet ICH and FDA regulatory guidelines with confidence.Why CAS Numbers Matter in Pharmaceutical ImpuritiesA CAS number is a unique numeric identifier for every chemical substance described in scientific literature.In pharmaceutical research and production, CAS numbers:✅ Ensure unambiguous identification of impurities and intermediates✅ Support regulatory compliance (ICH Q3A/B, FDA, EMA)✅ Simplify product searches for researchers and procurement teams✅ Enable accurate documentation and traceability in lab reports and submissionsOur Expertise in Impurity StandardsSpectrasynth offers a comprehensive catalog of impurity reference materials, covering major therapeutic classes such as:Antibiotics (e.g., Amoxicillin Impurity H – CAS 205826-86-4)Anticoagulants (e.g., Rivaroxaban Impurity A – CAS 366789-02-8)Oncology drugs (e.g., Docetaxel Impurity A – CAS 148408-66-6)Antiviral and antifungal APIs (e.g., Micafungin Impurity A – CAS 235114-32-6)Novel therapeutic intermediates and metabolitesAll products are supported with COAs, NMR, LC-MS, and HPLC purity data.Highlighted Products and CAS NumbersHere are some of the high-demand impurity reference standards available at Spectrasynth:Product Name CAS Number Typical Application Amoxicillin Impurity H205826-86-4 β-lactam antibiotic impurity profilingAcotiamide Impurity 948053-83-6 Prokinetic drug impurity analysisAlprazolam Impurity 5220-83-7 Benzodiazepine impurity QCCyclosporin F83574-28-1 Immunosuppressant related substanceRivaroxaban Impurity A366789-02-8 Anticoagulant impurity testingTicagrelor Impurity A274693-27-5 Antiplatelet impurity profilingGemcitabine Impurity A95058-81-4 Oncology drug impurity studyDocetaxel Impurity A148408-66-6 Anti-cancer impurity referenceMicafungin Impurity A235114-32-6 Antifungal impurity standardAbiraterone Impurity A154229-18-2 Hormone-related therapy impurity(Our full catalog covers 100+ CAS-numbered impurities across diverse therapeutic areas.) Why Choose Spectrasynth🌟 High-Purity Standards: ≥98% purity verified by LC-MS, NMR, and HPLC📦 Global Shipping: Secure, compliant delivery to 70+ countries🧬 Custom Synthesis: On-demand synthesis for rare and novel impurities📄 Regulatory Documentation: COA, MSDS, and stability data provided⚙️ ICH & GMP Compliance: Products meet international regulatory requirementsApplications of Our CAS-Numbered Standards✔️ Method Development & Validation✔️ Routine Quality Control in API & Finished Dosage✔️ Regulatory Submissions (ANDA, NDA, DMF)✔️ Impurity Profiling and Forced Degradation Studies✔️ Pharmacopoeial Compliance TestingHow CAS-Number Keywords Improve AccessibilityWe understand that most procurement teams and researchers search by CAS numbers when sourcing reference materials.By incorporating CAS numbers into our product pages, Spectrasynth ensures that customers:Find the exact impurity or intermediate fasterMinimize ambiguity in product selectionSave valuable time in method development and validationFinal ThoughtsPrecision, traceability, and compliance lie at the heart of modern pharmaceutical manufacturing.By leveraging CAS number–tagged impurity standards, Spectrasynth helps you achieve regulatory excellence and research accuracy.👉 Explore our full catalog of CAS-numbered pharmaceutical impurities and reference standards here or contact us for custom synthesis.