Custom synthesis: making the molecule
Custom synthesis is route development and production of a specific molecule to your specification — often novel, complex, or not commercially available. It leans on process development: finding a safe, scalable, cost-effective route with controlled impurities.
Contract manufacturing: scaling a known process
Contract manufacturing executes an established process at volume under your quality requirements. The chemistry is defined; the value is reliable, documented, repeatable production and capacity you don't have to build yourself.
Why tech transfer is the deciding factor
Whether you start with custom synthesis or move straight to manufacturing, a streamlined lab-to-pilot-to-plant tech-transfer protocol is what keeps quality intact as scale increases. Ask any prospective partner to describe theirs.
A facility built for hazardous, multi-step and impurity-sensitive chemistry — with dedicated streams and a strong QC lab — can support both models under one roof.