Research-grade ADC tools
DAR, payload loading, and 3D—for ADC teams
Drug-to-antibody ratio, conjugation efficiency, and antibody–payload 3D structure. From design to export.
Research and education only. Not medical advice.
Go to DAR Calculator to get started.
How it works
Search or enter sequence
Use the search above or go to the calculator to enter antibody and payload.Peptide Properties
Get properties & dose
Get DAR, drug load, total MW, hydrophobicity, stability.
Verify purity
View 3D structure and export PDB, PNG, CSV.Open Verify →
ADC → DAR & properties
Enter antibody and payload/linker. Get DAR, drug load, total MW, hydrophobicity, stability. 3D viewer and export PDB, PNG, CSV.
3D Structure Viewer — ADC
View antibody–drug conjugate and antibody structures in-site (rotate, zoom, measure, export).
Calculator · 3D Viewer · Export
DAR calculator, payload loading, conjugation efficiency; ADC 3D structure, payload distribution, antibody–payload complex; export formats and report export. Calculator → Tools →
DAR Calculator (payload)
Antibody–payload → DAR, drug load, total MW.
Linker Library
Common ADC linkers (VC-PAB, SMCC, etc.) with SMILES.
Conjugation Efficiency
Conjugation efficiency and cost per dose.
ADC 3D Structure
View antibody–drug conjugate 3D. Load PDB, measure, export.
Payload Distribution
Multi-frame 3D and payload distribution preview.
Antibody-Payload Complex
Load ADC PDB. View antibody–payload complex.
Export Formats
PDB, PNG, CSV. Download and cite.
Report Export
Export ADC analysis reports (PDF, CSV).
Docs
Getting started, ADC formats, data sources, tutorials.
Pricing
Free tier for research. Pro & Enterprise for teams and API.
Calculation standards & reproducibility — IUPAC, Bjellqvist (pI), Expasy ProtParam. All results traceable and citable.
For peptide purity verification (Janoshik), see Verify. For Visual ADC quality control, use your preferred third-party lab.