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Reference Standards for Impurities
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Short presentations detailing our newly characterized compendial markers and synthesis milestones.
KarpsChem is an independent, research-driven company specialized in the custom synthesis of pharmacopeial and non-pharmacopeial reference standards, drug glucuronides, drug metabolites, isotope-labelled reference standards and focused compound libraries.
As a research-driven organization, we have developed novel processes to make niche products required by pharmaceutical companies globally at various platforms.
Read More About Karpschem →Three pillars of scientific excellence supporting discovery and quality control teams worldwide.
"We can meet all your synthesis needs."
From milligrams to kilograms: novel impurity markers, degradation products, stable isotope-labelled standards (D, 13C, 15N), and drug glucuronides.
Explore Custom Synthesis →"Quality-controlled analytical data you can trust."
400/500 MHz 1D/2D NMR, HRMS mass spectrometry, HPLC/UPLC purity assay, GC-HS residual solvents, and Karl Fischer moisture titration.
View Sample COA →"Dedicated technical and customer support, 24x7."
Direct access to analytical scientists for troubleshooting chromatographic peaks, rapid quotation delivery, and cold-chain logistics coordination.
Contact Technical Team →The preferred partner for global pharmaceutical QA/QC and analytical labs.
Free analytical data with every shipment (1H-NMR, MS, HPLC purity, KF). No hidden documentation fees.
Cost-effective chemical synthesis keeps reference standards and impurities affordable for routine testing.
In-stock standards are shipped immediately following PO confirmation to meet urgent audit deadlines.
Round-the-clock technical assistance reachable via phone, WhatsApp, and official email.
Dispatched strictly within the agreed timeline through proactive planning, transparency and communication.
Reliable transport via Blue Dart, DTDC, DHL Express, and FedEx with verified temperature preservation.
Our organic chemistry laboratory synthesizes novel impurities, metabolites, and degradation markers not listed in standard compendia.
📞 24×7 Hotline: +91-00000-00000
✉️ Direct Inquiries: info@yourdomain.com
Speak directly with technical personnel or request expedited delivery for urgent regulatory filings.
Monthly alerts for newly synthesized nitrosamines and ICH M7 regulatory updates.