peptide synthesis services

Custom Peptide CRO Services at Any Scale

Research-grade to GMP manufacturing. Solid-phase synthesis, modifications, purification, and full analytical characterization. A Patient Analog resource for peptide development.

View Services Scale Options Modifications
// core_capabilities
Peptide CRO Service Categories

Standard service offerings available from peptide contract research organizations.

[01]

Custom Peptide Synthesis

Solid-phase peptide synthesis (SPPS) using Fmoc or Boc chemistry. Linear and cyclic peptides from 5 to 100+ amino acids. Standard and non-natural amino acid incorporation.

[02]

Peptide Modifications

N-terminal acetylation, C-terminal amidation, PEGylation, lipidation, fluorescent labeling, biotinylation, and disulfide bridge formation.

[03]

Purification Services

Preparative HPLC purification to >95%, >98%, or >99% purity. Multiple purification runs for difficult sequences. Lyophilization and custom formulation.

[04]

Analytical Characterization

LC-MS, MALDI-TOF, amino acid analysis, peptide mapping, sequence confirmation, and certificate of analysis for each batch.

[05]

Scale-Up & GMP

Process development for larger batches. Tech transfer to GMP facilities. IND-enabling manufacturing with full documentation.

[06]

Stability Studies

ICH-compliant stability testing. Accelerated and real-time conditions. Degradation pathway analysis and shelf-life determination.

// scale_options
Peptide Synthesis Scale Comparison

Typical scale ranges and applications for peptide synthesis projects.

Scale Quantity Range Typical Use Grade Timeline
Discovery 1-10 mg Initial screening, assay development Research 1-2 weeks
SAR Studies 10-100 mg Structure-activity relationship, lead optimization Research 2-3 weeks
In Vivo Studies 100 mg - 1 g Animal PK/PD, efficacy studies Pilot 3-4 weeks
Tox Studies 1-10 g GLP toxicology, safety assessment Pilot 4-6 weeks
Clinical Supply 10-100 g Phase I/II clinical trials GMP 8-12 weeks
Commercial 100 g - kg Phase III and commercial manufacturing GMP Project-specific

Timelines are estimates and vary based on sequence complexity, modifications, and purity requirements.

// common_modifications
Peptide Modification Options

Chemical modifications to enhance peptide stability, activity, or detection.

Ac-
N-Acetylation
Protects N-terminus from aminopeptidases
-NH2
C-Amidation
Mimics native peptides, blocks carboxypeptidases
PEG
PEGylation
Increases half-life, reduces immunogenicity
S-S
Disulfide
Cyclization for structural constraint
C16
Lipidation
Fatty acid conjugation for albumin binding
Bio
Biotinylation
Enables streptavidin-based detection
FITC
Fluorescent
FAM, FITC, Cy5 for imaging/binding
D-aa
D-Amino Acids
Protease resistance, altered binding
// analytical_methods
Analytical Characterization Methods

Standard techniques used to confirm peptide identity, purity, and quality.

MS

Mass Spectrometry

ESI-MS, MALDI-TOF for molecular weight confirmation and impurity identification

HP

HPLC Analysis

RP-HPLC for purity assessment, typically C18 column with UV detection at 214/280 nm

AA

Amino Acid Analysis

Quantitative composition analysis, content determination for formulation

Seq

Sequence Confirmation

Edman degradation or MS/MS fragmentation for sequence verification

CE

Capillary Electrophoresis

Orthogonal purity method, charge variant analysis

CD

Circular Dichroism

Secondary structure characterization, conformational analysis

// typical_workflow
Peptide Synthesis Process Overview

Standard workflow from sequence submission to final delivery.

1
Quote
1-2 days
2
Synthesis
5-10 days
3
Cleavage
1 day
4
Purification
2-5 days
5
Analysis
1-2 days
6
Ship
1-3 days