zinc-database

Search ZINC compounds by SMILES and retrieve properties via CartBlanche22 API.

Updated Mar 15, 2026
One-click install
npx skills add https://github.com/sagunkayastha/claude_skills_collection --skill zinc-database-sagunkayastha
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: zinc-database
Source: https://github.com/sagunkayastha/claude_skills_collection/tree/main/scientific-databases/zinc-database
Command: npx skills add https://github.com/sagunkayastha/claude_skills_collection --skill zinc-database-sagunkayastha

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides programmatic access to the ZINC database, enabling users to search for and retrieve information on over 230 million purchasable chemical compounds, crucial for drug discovery and virtual screening.

Core Features & Use Cases

  • Compound Searching: Search by ZINC ID, SMILES, or supplier codes.
  • Similarity Searches: Find structurally similar compounds.
  • Data Retrieval: Access compound properties like SMILES, molecular weight, and LogP.
  • 3D Structure Access: Locate downloadable 3D structures for docking studies.
  • Use Case: A researcher needs to find commercially available analogs of a promising hit compound. They can use this Skill to search ZINC by the hit compound's SMILES string and retrieve a list of similar, purchasable molecules.

Quick Start

Use the zinc-database skill to find compounds similar to SMILES 'c1ccccc1' with a distance of 3.

Frequently Asked Questions about zinc-database

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I search for chemical compounds in ZINC for drug discovery?

Search the ZINC database for drug discovery compounds by ZINC ID, SMILES strings, or supplier codes to retrieve purchasable molecules. The database contains over 230 million chemical compounds available for virtual screening.

How do I find structurally similar compounds using a SMILES string?

Perform a similarity search in the ZINC database by providing a SMILES string and specifying a distance metric, such as a distance of 3. This retrieves a list of structurally similar, purchasable molecules for hit analog discovery.

Can I retrieve molecular weight and LogP properties for ZINC compounds?

Retrieve compound properties like SMILES, molecular weight, and LogP directly from the ZINC database. Access is facilitated programmatically to provide essential cheminformatics data for compound evaluation.

How do I access 3D structures of compounds for docking studies?

Locate and download 3D structures of chemical compounds for docking studies through ZINC's file repositories. The skill facilitates access to retrieve these structural files programmatically.

What is the best way to find commercially available analogs of a hit compound?

Find commercially available analogs of a hit compound by searching ZINC using the compound's SMILES string to perform a similarity search. This yields a list of purchasable molecules from the 230M+ compound database.

Does the ZINC database skill require external dependencies to search compounds?

The ZINC database skill operates without external dependencies, utilizing the CartBlanche22 API for data retrieval and file repositories for 3D structure downloads to search compounds.