---
tags:
- chemistry
size_categories:
- 1B<n<10B
---

Downloaded Nov 25th 2023 from ZINC-20 (https://zinc20.docking.org/).

Contains the unique canonicalized SMILES molecules, done with RDKit.

Used this filtering criteria in the ZINC-20 tranches:
- 2D representation
- Standard reaction
- Annotated purchasability
- Drug-like subset

![Distribution of Sequence Lengths](sequence_lengths_distribution.png)
![Top 15 SMILES Tokens and Their Frequencies](top_smiles_tokens.png)