

Developing APIs often involves unpredictable yields, scalability hurdles, and regulatory complexity. Skanttr Lifescience LLP – custom API manufacturers India helps global pharma and biotech companies overcome these challenges through science-driven development, compliant manufacturing, and transparent collaboration.
With WHO-GMP and ISO-certified facilities in Gujarat, India, we deliver end-to-end API solutions ensuring every batch meets global quality and documentation standards.
Partner with us for custom synthesis and contract API manufacturing that aligns innovation with consistency and timelines.
WHO-GMP/USFDA/ISO/ regulatory compliance
Serving the Globe
State-of-the-art facility in Gujarat, India
Partnering with an experienced custom API manufacturer ensures your molecule meets regulatory and market-readiness standards from the outset. Our services help you with:
Tailored Molecule Development
APIs are synthesized to precise specifications for specialty or high-potency molecules.
Scalable Production
Lab-scale prototypes can be scaled to multi-ton commercial batches.
Global Supply Reliability
Structured logistics, alternate sourcing, and inventory management prevent production disruptions.
We offer end-to-end solutions that guide your molecule from concept to commercial-scale API. Each stage is designed to optimize quality, efficiency, and compliance:
| Service | Description |
|---|---|
| Custom API Development | CompliesSynthesis of APIs as per client specifications, from mg-scale to multi-kg production |
| Process Optimization | Route scouting, yield improvement, impurity control, cost optimization |
| Contract Manufacturing | Commercial-scale API production with regulatory documentation |
| Pilot & Scale-Up Substances | Technology transfer, pilot batches, and process validation |
| Specialty & High-Potency Molecules | Complex chemistries, oncology APIs, peptides, and niche intermediates |
We follow a carefully outlined approach to transform molecules into fully validated APIs. Each step is designed to maintain quality, regulatory compliance, and ensure your project progresses seamlessly from lab-scale evaluation to commercial production:
We identify the most efficient synthetic route, optimizing reactions, solvents, and parameters to ensure high yield and purity.
All starting materials are verified for identity and purity to prevent contamination and ensure consistency.
Controlled chemical or biotechnological processes convert raw materials into the desired API through validated multi-step synthesis.
Impurities and by-products are removed through crystallization, filtration, or chromatography to achieve pharmaceutical-grade purity.
Stable crystalline forms are developed to improve stability, handling, and bioavailability.
APIs are dried and milled to ensure uniform particle size for consistent formulation performance.
Each batch undergoes validated analytical testing for identity, purity, and stability, meeting global regulatory standards.
Our science-driven approach and flexible capacity make us one of the top API manufacturers in India.
We craft APIs to your specifications, whether it’s high-potency molecules or complex chemistries, ensuring precision at every step.
From early-stage R&D to full-scale commercial production, we handle the entire lifecycle so you can focus on your formulations.
Through strategic inventory management and robust logistics, we ensure your API supply is seamless and uninterrupted.
Our R&D-driven process optimizations boost yields, cut waste, and lower costs, all while minimizing environmental impact.
Skanttr’s contract manufacturing is adapted for the unique needs of each industry we serve:
Scalable API production for generic drug portfolios
Complex molecule development and commercial supply
Tailored API solutions for contract partners
Compliant custom synthesis of bioactive compounds
APIs and intermediates for veterinary formulations
Our process is simple, transparent, and designed for seamless collaboration:
Share structure, specifications, and required quantity.
We evaluate technical feasibility, cost, and timelines.
Produce small-scale batches for validation and process refinement.
Full-scale production with complete documentation.
Continuous manufacturing, QA testing, and logistics coordination.
Work with us to scale your custom synthesis and manufacturing with full technical and regulatory support.
Timelines vary depending on molecular complexity and stage of development. Early feasibility and route design may take 2–4 weeks, while full development and scale-up can extend from 3 to 9 months, especially if regulatory documentation or validation batches are required.
Costs usually include process development or technology transfer, raw materials and reagents, analytical method development, pilot-scale validation, and full-scale production.
Manufacturers follow validated analytical methods and ICH-compliant impurity profiling. Every batch undergoes testing for identification, related substances, residual solvents, and elemental impurities before release.


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