3-Chloro-4-hydroxybenzoic Acid Hemihydrate TCI C1128

Chemical Identity

CAS No.: 3964-58-7
PubChem: CID 19860·SID 87566158
Formula: C7H5ClO3.1/2H2O
Molecular weight: 181.57 g/mol
Purity: >98.0%(T)
Reference databases: ChemSpider·ECHA

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 3-chloro-4-hydroxybenzoic acid
SMILES: C1=CC(=C(C=C1C(=O)O)Cl)O
InChIKey: QGNLHMKIGMZKJX-UHFFFAOYSA-N
MDL: MDL00002549

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TCI C1128 3-Chloro-4-hydroxybenzoic Acid Hemihydrate (CAS 3964-58-7) is a trifunctional aromatic building block combining a carboxylic acid, a phenolic hydroxyl, and a chlorine substituent. These handles support esterification, amide coupling, and selective phenol etherification in multi-step synthesis. Because the material is supplied as a hemihydrate, the bound water should be taken into account in stoichiometric calculations. AMI Scientific offers this TCI product in 25 g and 250 g pack sizes for Indonesian research and development laboratories.