India-based manufacturer and exporter supporting pharmaceutical companies and CROs with 500+ API impurities, impurity standards, working standards, intermediates, and custom synthesis services for analytical research, method development, validation, and QC.
API Impurities Supported
Purity Standards
Export Markets Supported
Research, QC & Validation
Swapreen Pharma supplies and exports API impurities, working standards, drug intermediates, and custom synthesis products for pharmaceutical companies, CROs, and analytical laboratories worldwide, from milligram-scale requirements to repeat supply discussions. Products can be provided with CoA, HPLC purity data, NMR, MS, IR, and additional analytical reports on request.
Certified process-related impurities, degradation products, and genotoxic impurities at ≥95% to ≥99.9% purity. Full CoA with HPLC, NMR, MS, and IR data supplied with every batch.
Learn more →High-purity in-house reference standards calibrated against USP, EP, and BP primary standards. Ideal for routine QC, method validation, dissolution testing, and system suitability.
Learn more →API intermediates, KSM intermediates, chiral intermediates, and custom intermediate synthesis enquiries for development, sourcing, and export buyers.
Learn more →Bespoke synthesis of compounds not available in our catalogue — novel molecules, rare impurities, isotopically labelled analogues, and proprietary intermediates under full NDA protection.
Learn more →Swapreen Pharma Pvt. Ltd. is a manufacturer and exporter from India supplying pharmaceutical API impurities, impurity standards, working standards, and custom synthesis materials for global pharmaceutical quality control, analytical testing, sourcing, and regulatory-support workflows.
Advanced Synthesis Techniques — Each compound produced using modern analytical instruments to ensure purity, accuracy, and reliability.
International Compliance — Products meet ICH, USP, EP, and other international regulatory standards for pharmaceutical testing.
Custom Impurity Synthesis — Specialized services for metabolites, degradation products, and unique research compounds.
API Impurities & Reference Standards in catalogue
Countries with active pharmaceutical clients
Average purity achieved across our catalogue
Average quote turnaround for custom compounds
A selection from our catalogue of API impurities, impurity standards, and reference standards from India. Don't see what you need? We offer custom synthesis.
Browse priority export markets for API impurities, working standards, and custom synthesis enquiries from outside India.
API impurity standards manufacturer and supplier support for USA buyers.
View market page →API impurity standards supplier from India for UK pharma and lab teams.
View market page →API impurity standards and working standard enquiry support for Canadian buyers.
View market page →Analytical impurity standards and custom synthesis support for German labs.
View market page →Export enquiry support for UAE distributors, importers, and laboratories.
View market page →API impurity and reference standard enquiries for Australian pharma teams.
View market page →Request a custom quote online. Our team responds within 24–48 hours with pricing and availability.