Compare CDMOs specializing in small molecule API synthesis from route scouting through commercial manufacturing. Filter by chemistry capabilities, scale, and regulatory approvals.
516 companies listed
For a small molecule API, the synthetic route is the program. A CDMO's process chemists decide how you get from raw materials to drug substance: how many steps, what yield, and which impurities you'll spend the next two years explaining to regulators. Route scouting and development are where a strong API partner earns its fee. Crystallization is the part buyers underestimate. It controls polymorphic form and particle size, and a polymorph surprise during scale-up has delayed more filings than most people admit. So probe the chemistry. Have they run your reaction types (hydrogenation, cryogenic steps, flow chemistry) at kilo-lab through metric-ton scale? Is the API high-potency, needing OEB4/5 containment? Do they have ICH Q11 filings and a defensible regulatory starting material strategy? 516 CDMOs here list small molecule API synthesis. Compare them on chemistry, scale, and regulatory experience.
Active Pharmaceutical Ingredient (API) manufacturing is the chemical synthesis of the drug substance itself. For small molecules, this involves multi-step organic chemistry from raw materials to the final API, requiring expertise in reaction chemistry, purification, crystallization, and process optimization.
Process chemistry determines project success. A strong CDMO identifies the most efficient synthetic route, optimizes reaction conditions for yield and purity, and develops a process that scales reliably from gram to metric ton quantities. Crystallization expertise is particularly critical for controlling polymorphic form and particle size distribution.
INDIA
INA Pharmaceuticals is an India-based pharmaceutical manufacturing and CDMO company specializing in pharmaceutical intermediates, advanced intermediates and custom synthesis solutions for global pharmaceutical partners. We support customers from route development and process optimization through scale-up and commercial manufacturing, with a focus on consistent quality, reliable supply and long-term partnerships. Our capabilities include: - Pharmaceutical intermediates and advanced intermediates - Custom synthesis and contract manufacturing - Process development and optimization - Route scouting and scale-up - Commercial-scale manufacturing - Technology transfer - Impurity and related-substance synthesis - Customized manufacturing solutions based on customer requirements We work with pharmaceutical companies, generic manufacturers, CDMOs, CROs and sourcing organizations seeking reliable manufacturing partners in India. We are actively looking for: - Long-term supply partnerships - Custom synthesis projects - CDMO collaborations - Technology-transfer opportunities - Joint development projects - Strategic partnerships with overseas pharmaceutical companies Our objective: to become a reliable long-term manufacturing partner for pharmaceutical companies seeking high-quality intermediates and flexible CDMO solutions from India.
Canada
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ResolveMass Laboratories Inc. is a Canadian pharmaceutical CRO and CDMO providing analytical testing, characterization, and drug development support for pharmaceutical, biotechnology, and medical device companies worldwide. Our expertise spans small molecules, peptides, biologics, biosimilars, oligonucleotides, polymers, and complex drug products. We offer specialized services including mass spectrometry (LC-MS/MS, LC-HRMS), peptide characterization, impurity identification, nitrosamine analysis, extractables and leachables (E&L) studies, bioanalytical testing, stability studies, method development, and regulatory support. Our multidisciplinary scientific team helps clients address complex analytical challenges and generate high-quality data to support research, development, manufacturing, and regulatory submissions. ResolveMass Laboratories operates from Canada and serves clients across North America, Europe, and Asia. The company maintains an ISO 9001:2015 certified Quality Management System, is FDA-registered, and holds a Health Canada Drug Establishment Licence for GMP-compliant operations. We are committed to delivering scientifically rigorous, reliable, and timely solutions that accelerate drug development and support regulatory success.