# 1-(3-Chloro-phen-yl)-5-(2,4-di-hydroxy-benzo-yl)pyridin-2(1H)-one.
> 1-(3-クロロフェニル)-5-(2,4-ジヒドロキシベンゾイル)ピリジン-2(1H)-オンの結晶構造解析


## Abstract

This study reports the X-ray crystal structure of the compound C18H12ClNO4. The chlorophenyl substituent exhibits positional disorder across two orientations, with site occupancies of 0.331(8) and 0.669(8). An intramolecular hydrogen bond is observed between a hydroxyl group and the acyclic carbonyl moiety. Within the crystal lattice, intermolecular O-H···O and C-H···O hydrogen bonding interactions link molecules into extended chains propagating along the [110] direction, generating a characteristic ladder-type supramolecular motif.

## Bibliographic

- **Authors**: Ren F, Li G, Zhang Q, Yao J, Zhang XQ
- **Journal**: Acta Crystallogr Sect E Struct Rep Online
- **Year**: 2013 (2013-05-01)
- **PMID**: [23723884](https://pubmed.ncbi.nlm.nih.gov/23723884/)
- **DOI**: [10.1107/S1600536813009689](https://doi.org/10.1107/S1600536813009689)
- **PMC**: [PMC3648264](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3648264/)
- **Study type**: other
- **Delivery route**: not specified
- **Effect reported**: not assessed

## Delivery context

The delivery route is not clearly identifiable from this paper. For hydrogen intake, inhalation is the most efficient route; inhalation, however, carries explosion risk (empirical LFL of 10%; high-concentration devices are not recommended).

## Safety notes

The delivery route is not clearly identifiable from this paper. For hydrogen intake, inhalation is the most efficient route; inhalation, however, carries explosion risk (empirical LFL of 10%; high-concentration devices are not recommended).

See also:
- [Inhalation concentration and LFL / UFL](https://h2-papers.org/en/safety-notes/inhalation-concentration)
- [Consumer Affairs Agency accident cases](https://h2-papers.org/en/safety-notes/accident-cases)

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> **Cite as**: H2 Papers — PMID 23723884. https://h2-papers.org/en/papers/23723884
> **Source**: PubMed PMID [23723884](https://pubmed.ncbi.nlm.nih.gov/23723884/)