Project Support for Specialty Chemistry

When a customer shares a product request or target structure, we first confirm whether an existing catalog material fits the application. We then review possible routes, starting-material access, sensitive functional groups, salt or ester form, expected impurities, and the amount needed for the next project step. This determines whether the request can proceed as a product inquiry or needs project-specific material preparation and route review.

• Target identity, structure, and route information review
• Starting-material access and first feasibility discussion
• Early impurity, sensitivity, and analytical-risk questions

When no catalog item matches the required structure, form, or quantity, CHEMOS reviews the exact target, requested specification, and intended use before discussing a preparation route. Project scope can include oligonucleotide or peptide conjugation handles and linkers, ADC linker and payload-linker building blocks, PROTAC and E3-ligand-related blocks, non-radioactive chelator blocks, GalNAc ligands, and lipid-delivery inputs. Feasibility, quantity, timeline, and the analytical data package are confirmed for each project.

• Target building blocks, linkers, ligands, and specialty intermediates
• Project-specific salt, ester, linker, or handle requirements
• Project-specific material preparation where feasible

Analytical work is selected for the specific material and project stage. Depending on the agreed scope, review may cover identity, purity, impurity profile, structural confirmation, and batch data using HPLC, LC-MS, NMR, GC, or other appropriate methods. Stability work and additional method development are included only when required and confirmed as feasible.

• Identity, purity, and impurity-profile data requirements
• Batch-specific data package discussion
• HPLC, LC-MS, NMR, GC, and related analytical review when appropriate