5-Chloro-2-hydroxy-4-methylbenzophenone TCI C3260

Chemical Identity

CAS No.: 68751-90-6
PubChem: CID 555814·SID 354334187
Formula: C14H11ClO2
Molecular weight: 246.69 g/mol
Purity: >98.0%(GC)

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: (5-chloro-2-hydroxy-4-methylphenyl)-phenylmethanone
SMILES: CC1=CC(=C(C=C1Cl)C(=O)C2=CC=CC=C2)O
InChIKey: IOGQACQRFGDUPT-UHFFFAOYSA-N
MDL: MDL00002325

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5-Chloro-2-hydroxy-4-methylbenzophenone is a benzophenone derivative. It has a hydroxyl group ortho to the carbonyl group, plus a chlorine atom and a methyl group on the same aromatic ring. 2-Hydroxybenzophenone compounds are widely known as a structural framework for ultraviolet absorbers. The same framework is also an important intermediate in the synthesis of heterocyclic compounds and pharmaceutical molecules. In the laboratory, this TCI material serves as a non-heterocyclic building block. It supplies a substituted aryl ketone system that is ready for further functionalization, giving researchers a dependable starting point for multi-step synthetic routes.

The defining feature of this compound is the intramolecular hydrogen bond between the phenolic hydroxyl group and the carbonyl oxygen. This bond stabilizes the molecule and lets it release absorbed UV photon energy efficiently through excited-state proton transfer. This mechanism is the basis of how hydroxybenzophenone-class UV absorbers work. The hydroxyl and carbonyl groups can also chelate metal ions, while the chlorine atom and methyl group tune the molecule's electronic properties and lipophilicity. Together, these features give researchers flexibility when designing new derivatives with tailored behavior.

In Indonesia, this material is relevant to polymer and additive research laboratories studying UV-protective frameworks and how materials respond to light. University organic chemistry groups can use it as a substituted aryl ketone building block in synthesis projects and coursework research. Pharmaceutical and fine-chemical research teams may also find it useful as a framework for exploring heterocyclic and drug-like molecules. Supplied under the TCI brand, it gives Indonesian researchers a clearly identified reagent for reproducible laboratory work.

Related TCI products

UV absorber research: the 2-hydroxybenzophenone framework, with its intramolecular hydrogen bond, makes this compound a suitable model for studying how UV energy is released through excited-state proton transfer.
Polymer additive development: polymer and additive laboratories can use this substituted hydroxybenzophenone as a reference framework when exploring UV-protective additives for plastics and coatings.
Heterocyclic synthesis: the hydroxybenzophenone framework is a known intermediate for building heterocyclic compounds, so this material is a practical starting point for ring-forming synthetic routes.
Pharmaceutical intermediate research: the substituted aryl ketone system can be functionalized further, which supports medicinal chemistry groups that are designing and screening new drug-like molecular frameworks.
Metal chelation and coordination studies: the neighboring hydroxyl and carbonyl groups can chelate metal ions, making this compound useful for exploring ligand behavior and metal complex formation.

Brand	TCI (product code C3260)
CAS number	68751-90-6
Molecular formula	—
Purity	—
Category	Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Pack sizes	available in the pack sizes listed for this product on the order page
Physical form	refer to the manufacturer's product documentation
Storage	keep in a tightly closed container in a cool, dry place away from light

Store 5-Chloro-2-hydroxy-4-methylbenzophenone in its original, tightly sealed container in a cool, dry, well-ventilated area. Protect it from direct light, moisture, and heat sources. Keep it away from strong oxidizing agents and incompatible chemicals. Handle the material in a fume hood or another well-ventilated workspace, and wear standard personal protective equipment, including safety glasses, chemical-resistant gloves, and a laboratory coat. Avoid creating or breathing dust, and prevent contact with skin and eyes. Label containers clearly, close them promptly after use, and read the manufacturer's Safety Data Sheet (SDS) before use for hazard information and disposal guidance.

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