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Description
TCI D3791 3,5-Dichlorobenzyl Alcohol is a benzylic alcohol whose aromatic ring carries two chlorine atoms at the 3 and 5 positions. In the laboratory it serves as a non-heterocyclic building block that supplies a ready-made halogenated benzyl framework, sparing researchers the need to perform their own halogenation step, a stage whose selectivity is normally difficult to control. The benzylic hydroxyl group on this compound is a highly flexible entry point, because it can be converted into a benzyl halide, ester, ether or aldehyde, or used directly as a nucleophile in a variety of substitution and coupling reactions.
The characteristic that makes this material attractive is the combination of benzylic group reactivity with the electronic influence of the two chlorine atoms. Chlorine substituents are electron-withdrawing, so they lower the electron density of the ring, making the resulting derivatives more stable toward aromatic oxidation while also affecting the polarity, solubility and lipophilic character of the final molecule. The symmetrical substitution pattern at the 3 and 5 positions produces a molecule with neat symmetry, so its NMR spectrum is simple and easy to interpret — a practical advantage when monitoring a reaction pathway.
In Indonesian laboratories, a building block of this type is typically used in synthetic organic chemistry and medicinal chemistry work at universities, research institutes and industrial development units. Because it arrives as a defined, ready-to-use halogenated benzyl scaffold, work can begin at the derivatisation stage rather than at ring functionalisation, which shortens experimental timelines and keeps results consistent between batches. Its straightforward spectroscopic signature also makes it convenient for teaching and method-development settings where clear reaction monitoring matters.
Laboratory Applications
Non-heterocyclic building block synthesis: it supplies a pre-halogenated benzyl framework, so researchers can skip the separate halogenation step whose selectivity is usually hard to control.
Conversion to benzyl halides: the benzylic hydroxyl group is readily transformed into the corresponding halide, giving an activated electrophile for downstream alkylation and substitution chemistry.
Ester and ether preparation: the same hydroxyl handle allows straightforward esterification or etherification, letting chemists build more elaborate molecules from a single, well-defined starting scaffold.
Oxidation to the aldehyde: the benzylic alcohol can be taken up to the corresponding aldehyde, opening routes to condensation and carbonyl-based coupling steps in multi-step sequences.
Property tuning in target molecules: the two electron-withdrawing chlorine atoms let researchers deliberately adjust ring electron density, polarity, solubility and lipophilicity of the final compound.
Specifications
Brand: TCI (Tokyo Chemical Industry)
CAS number: 60211-57-6
Category: Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Chemical name: 3,5-Dichlorobenzyl Alcohol
Pack sizes: available in TCI standard research pack sizes; please confirm the size options when ordering
Storage: keep in the original, tightly closed container in a cool, dry place, following the storage instructions on the manufacturer's label and safety data sheet
Handling and Storage
Store the container tightly closed in a cool, dry, well-ventilated area, away from direct sunlight, heat sources and strong oxidising agents, and follow the storage conditions stated on the manufacturer's label and safety data sheet. Keep the material in its original supplier packaging or in a compatible, clearly labelled glass container; return any decanted portion to a sealed vessel promptly to limit exposure to moisture and air. Handle the compound in a fume hood using safety glasses, gloves and a laboratory coat, avoid inhalation of dust or vapour and contact with skin and eyes, and wash hands after handling. Dispose of residues and contaminated materials through the laboratory's chemical waste route rather than the general drain, and consult the safety data sheet before first use.
