Datasets:
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---
license: openrail
pretty_name: PubChem 68K
size_categories:
- 10K<n<100K
task_categories:
- image-to-text
---
Molecules in this set
* have a molecular weight of fewer than 1500 Daltons,
* not possess counter ions,
* only contain the elements C, H, O, N, P, S, F, Cl, Br, I, Se and B,
* not contain isotopes of Hydrogens (D, T),
* have 3–40 bonds,
* not contain any charged groups including zwitterionic forms,
* only contain implicit hydrogens, except in functional groups,
* have less than 40 SMILES characters,
* no stereochemistry is allowed.
The original dataset from Decimer was imported and randomly sampled. 516x516 sized images were generated using RDKit.
## Reference
> Rajan, Kohulan; Zielesny, Achim; Steinbeck, Christoph (2021): DECIMER 1.0: Deep Learning for Chemical Image Recognition using Transformers. ChemRxiv. Preprint. https://doi.org/10.26434/chemrxiv.14479287.v1 |