Sequence & length
Share the target amino acid sequence, terminal requirements and any mixture or chain-length considerations for feasibility review.
Custom synthesis & OEM
Turn a peptide requirement into a production-ready brief.
Bring sequence, modification, purity target, scale and packaging requirements into one coordinated discussion with our technical and commercial team.
Start a project RFQProject blueprintCustom peptide brief
Scope reviewSequence input
H₂N[AA]ₙCOOH
Target purity≥99%
Production scalemg → bulk
ModificationProject-defined
PresentationVial / custom pack
Project inputs
Define the variables that shape the project.
You do not need a perfect brief before contacting us. Share what is known, and our team will organize the requirement and flag the decisions still needed.
Chemical modifications
Define phosphorylation, acetylation, PEGylation, cyclization, isotope labeling or other project-specific modifications.
Purity & scale
Peptide products are supplied at guaranteed purity of ≥99%. Define any higher or project-specific purity target together with the evaluation quantity and production scale.
Salt form & formulation
Specify acetate, TFA or another salt form together with lyophilized powder, solution or other presentation needs.
Packaging & labeling
Coordinate vial size, stopper and cap selection, label artwork, pack quantity and research-use presentation.
Supply requirements
Add destination, timing, sample, bulk production and other commercial requirements to the same project brief.
Project workflow
One clear path from initial requirement to supply coordination.
- 01
Brief
Send the sequence, target specification, quantity and intended research context.
- 02
Feasibility
Our team reviews the technical scope, identifies open questions and aligns the proposed route.
- 03
Quotation
You receive a written scope covering format, scale, packaging, timing and commercial terms.
- 04
Coordination
After confirmation, technical, production and packaging requirements stay connected through delivery.
OEM & private label
Research-use packaging aligned to your program.
Coordinate neutral presentation or private-label packaging through the same project brief used for the material requirement.
- Research-use label hierarchy and artwork handoff
- Vial, stopper, cap and pack configuration
- Sample-to-bulk quantity planning
- Destination and supply eligibility review
Planning a project
Common questions before an RFQ.
These answers explain how we scope projects without making assumptions about feasibility, timing or supply before review.
Prepare your inquiry01What should I include in a custom peptide inquiry?
Share the sequence or material name, target modification, any purity requirement above our guaranteed ≥99% standard, required quantity, preferred format, packaging needs, destination and target timing. If some details are not yet decided, our team can identify the open points during review.
02Can Saiputai support both evaluation quantities and repeat supply?
Projects can be reviewed from milligram-scale evaluation requirements through repeat and bulk production. Feasibility, minimum quantity, timing and final supply scope depend on the sequence, specification and packaging requested.
03Are private-label vials and custom packaging available?
Yes. Research-use vial size, stopper and cap selection, label artwork, pack quantity and outer presentation can be coordinated as part of the same project brief, subject to technical and commercial review.
04How is lead time confirmed?
Lead time is confirmed after the sequence or product, scale, specification, packaging and destination have been reviewed. The quotation records the agreed scope and expected timing instead of applying one fixed turnaround to every project.
05Can I request an evaluation sample first?
Sample or small-batch requirements can be included in the inquiry. Availability and feasibility are reviewed against the material, specification, current production plan and destination before confirmation.