4,4'-Dichlorobenzhydrol TCI D1915

Chemical Identity

CAS No.: 90-97-1
PubChem: CID 7033·SID 87568375
Formula: C13H10Cl2O
Molecular weight: 253.12 g/mol
Purity: >98.0%(GC)
Reference databases: ChEBI·ChemSpider·ECHA

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: bis(4-chlorophenyl)methanol
SMILES: C1=CC(=CC=C1C(C2=CC=C(C=C2)Cl)O)Cl
InChIKey: PHUYGURFBULKPA-UHFFFAOYSA-N
MDL: MDL00000629

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TCI D1915 4,4'-Dichlorobenzhydrol (CAS 90-97-1) is a diaryl alcohol: a single carbon atom carries a hydroxyl group and two benzene rings, and each ring has a chlorine atom in the para position. The catalogue lists it as a non-heterocyclic building block, meaning a starting material for assembling larger molecules. Its secondary, benzylic hydroxyl group can be oxidised, substituted or etherified. The diarylmethane framework it provides often forms part of target structures in organic synthesis research.

What makes this compound useful is that it pairs a reactive hydroxyl group with two stable chlorinated aromatic rings. Because the hydroxyl sits in a benzylic position, it can be converted fairly easily into benzhydryl halides or ethers through a carbocation pathway stabilised by the aromatic rings. Oxidising the alcohol gives the corresponding diaryl ketone, so the compound also works as a substrate for testing oxidising reagents. The chlorine atoms on the rings offer further sites for downstream reactions. The material is a solid, so it can be weighed accurately and kept for long periods in a well-closed container.

In Indonesian laboratories, 4,4'-Dichlorobenzhydrol is mainly used in university and research-institute organic chemistry groups that build diarylmethane-based molecules or study benzylic reactivity. It is also used in teaching and research projects on oxidation, substitution and etherification reactions, where a well-defined solid substrate makes results easier to reproduce. Synthesis laboratories that need a dependable intermediate from a recognised brand such as TCI can include it in multi-step routes without preparing the alcohol themselves.

Related TCI products

Benzhydryl halide preparation: the benzylic secondary hydroxyl group reacts through a carbocation stabilised by the aromatic rings, so it converts fairly easily into the corresponding chlorinated benzhydryl halides.
Ether synthesis: the hydroxyl group can be etherified through the same stabilised carbocation pathway, so this compound is a convenient precursor for benzhydryl ethers that carry two para-chlorophenyl groups.
Oxidation studies: oxidising this alcohol gives the corresponding diaryl ketone, which makes it a clear and practical model substrate for comparing or testing oxidising reagents in the laboratory.
Diarylmethane scaffold construction: its diarylmethane framework often appears in target structures in organic synthesis, so it can serve as a ready-made core for assembling larger molecules.
Further functionalisation through the ring chlorines: the para-chlorine atoms on both benzene rings provide extra sites for later reactions, so researchers can extend the molecule beyond the hydroxyl position.

Brand	TCI (product code D1915)
CAS number	90-97-1
Molecular formula	—
Purity	—
Category	Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Pack sizes	please check the product listing or ask our team which pack sizes are available
Physical form	solid
Storage	keep in a tightly closed container; follow the storage conditions on the TCI label and Safety Data Sheet

Store 4,4'-Dichlorobenzhydrol in its original tightly closed container, or another well-sealed and clearly labelled glass container, in a cool, dry, well-ventilated place away from direct sunlight and moisture. Keep it apart from strong oxidising agents, because the alcohol can be oxidised. Always follow the specific storage temperature and conditions on the TCI label and Safety Data Sheet. When handling, wear laboratory gloves, safety glasses and a lab coat. Weigh the solid in a fume hood or a well-ventilated area to avoid inhaling dust, and avoid contact with skin and eyes. Close the container right after use to protect the material, and dispose of waste according to local regulations for halogenated organic compounds.

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