Chemical Identity and Structure

2-Amino-5-chlorobenzyl alcohol is an aromatic organic compound featuring a benzene ring substituted with a primary amino group (–NH₂) at the 2-position (ortho) relative to the hydroxymethyl group (–CH₂OH) at the 1-position, and a chlorine atom at the 5-position (para to the amine). This arrangement creates a molecule with two distinct reactive handles: the nucleophilic amine and the primary alcohol. The chlorine substituent influences the electron density of the ring, modifying reactivity in electrophilic and nucleophilic aromatic substitution reactions. The compound is therefore classified as a halogenated aminobenzyl alcohol and serves as a key bifunctional building block in synthetic chemistry.

Handling, Storage and Safety Considerations

As with most aromatic amine compounds, 2-amino-5-chlorobenzyl alcohol should be handled with appropriate personal protective equipment, including nitrile gloves, safety glasses and a laboratory coat. Work should be carried out in a well-ventilated fume hood to minimise inhalation exposure. The compound should be stored in a tightly sealed container away from strong oxidising agents, acids and bases that could react with either the amine or the alcohol functionality.

For long-term stability, storage at 2–8 °C in a dry, dark environment is generally recommended for aminobenzyl alcohol derivatives to prevent oxidation of the amine group and potential condensation reactions. Always consult the current Safety Data Sheet (SDS) provided with the product for specific hazard classifications, first-aid measures and disposal procedures before use.

Applications in Organic and Medicinal Chemistry

The dual functionality of 2-amino-5-chlorobenzyl alcohol makes it attractive across several synthetic domains. The primary amine can participate in amide bond formation, reductive amination, Schiff base condensation, and heterocycle synthesis (e.g., benzimidazoles, quinoxalines, and benzoxazoles). The hydroxymethyl group can be oxidised to an aldehyde or carboxylic acid, esterified, or converted to a leaving group for further elaboration.

In medicinal chemistry, halogenated aminobenzyl alcohols serve as intermediates in the preparation of pharmacologically active scaffolds. The chlorine atom at the 5-position can also participate in metal-catalysed cross-coupling reactions (e.g., Suzuki, Buchwald–Hartwig), expanding the diversity of accessible analogue libraries. Researchers in drug discovery and agrochemical development frequently employ such bifunctional building blocks to rapidly explore structure–activity relationships.

Purity, Specification and Quality Considerations

When selecting 2-amino-5-chlorobenzyl alcohol for sensitive synthetic applications, researchers should verify the purity grade of the batch supplied. Common analytical methods used to characterise this type of compound include high-performance liquid chromatography (HPLC), nuclear magnetic resonance (NMR) spectroscopy (¹H and ¹³C), gas chromatography–mass spectrometry (GC-MS) and elemental analysis. A certificate of analysis (CoA) is available for each production lot and should be reviewed prior to use in critical experiments.

Impurities in aminobenzyl alcohol reagents may include related regioisomers, oxidised species (aldehyde or quinone derivatives) or residual solvents. For high-purity requirements such as pharmaceutical reference standards, please contact Aladdin Scientific technical support to discuss available grades and custom specifications.

Ordering and Customer Support

2-Amino-5-chlorobenzyl alcohol is available from Aladdin Scientific under SKU A348010. To place an order, log in to your Aladdin account, search by SKU or product name, and add the desired quantity to your cart. Bulk quantities, custom packaging and alternative grades may be arranged through our sales team.

For technical enquiries regarding compatibility, solubility in specific solvents, or recommended reaction conditions, please contact our technical support team via the website or by email. Our specialists can assist with protocol optimisation, SDS requests and certificate of analysis retrieval. References to equivalent cross-catalogue numbers such as Santa Cruz sc-229904 can also be used to verify product equivalence when sourcing from multiple suppliers.