Pembayaran hanya melalui request quotation dan dilakukan setelah tim kami menghubungi Anda. Mohon cantumkan nomor WhatsApp aktif untuk konfirmasi pesanan & pembuatan invoice. Estimasi pengiriman 4-5 minggu setelah pembayaran.
Couldn't load pickup availability
Description
TCI C2102 5'-Chloro-3-hydroxy-2'-methyl-2-naphthanilide is a member of the Naphtol AS family of compounds, built around a 3-hydroxy-2-naphthoic acid core that has been amidated with an aniline bearing both chloro and methyl substituents. Within the laboratory it serves as a building block in dye chemistry, most commonly as a coupling component for the formation of azo pigments and azo dyes. Its practical role is to supply a ready-to-use reaction partner for diazonium salts, so that researchers can generate a wide range of colour shades simply by changing the diazo component while leaving the established working procedure unchanged.
The property that makes this compound a frequent choice is its balance between chemical reactivity and physical stability. The hydroxyl group on the naphthalene core strongly activates the coupling position, while the methyl group on the aniline ring contributes mild steric and electronic effects that shift the shade of the final product. The chlorine atom adds hydrophobic character, so that the resulting pigments tend to be less soluble in water and more resistant to washing. The material is supplied as a solid that is stable at room temperature, is not readily volatile, and is easy to weigh out and disperse in dilute alkaline media in line with standard dyeing procedures.
In Indonesian laboratories this type of coupling component is typically found in textile and dye chemistry work, in university research groups studying azo colourants, and in industrial quality-control settings where pigment formation is reproduced on a small scale. Because the compound is a stable solid rather than a volatile liquid, it suits laboratories where samples are stored for extended periods and where weighing is carried out on open benches under ordinary tropical ambient conditions.
Laboratory Applications
Azo pigment synthesis — the activated coupling position on the naphthol core reacts readily with diazonium salts, allowing insoluble pigments to be precipitated directly from the reaction mixture.
Azo dye preparation for textile chemistry — serves as the coupling component in classical dyeing procedures, where the shade is varied by changing only the diazo partner.
Shade development studies — the methyl substituent on the aniline ring exerts mild steric and electronic effects, making the compound useful for investigating structure-versus-colour relationships.
Wash-fastness and solubility research — the chlorine atom increases hydrophobic character, so pigments formed from it are well suited to studies of water resistance and washing durability.
General non-heterocyclic building block work — the stable amidated naphthoic acid framework provides a reliable starting point for further derivatisation in organic synthesis laboratories.
Specifications
Brand: TCI
CAS number: 135-63-7
Chemical name: 5'-Chloro-3-hydroxy-2'-methyl-2-naphthanilide
Category: Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Physical form: solid, stable at room temperature and not readily volatile
Pack sizes: available in the standard laboratory pack sizes offered for this catalogue item
Storage: keep in the closed original container at ambient laboratory temperature
Handling and Storage
Store the compound in its original tightly closed container, kept in a dry, well-ventilated area away from direct sunlight, moisture, and sources of ignition or excessive heat. Glass or chemically compatible plastic containers with secure closures are appropriate for repackaged portions, and containers should remain clearly labelled with the compound name and CAS number. Weigh and transfer the solid in a fume hood or a well-ventilated area to limit dust generation, and use a laboratory coat, safety glasses, and suitable gloves. Avoid inhalation of dust and contact with skin and eyes. Keep the material separate from strong oxidising agents, and wash hands thoroughly after handling. Dispose of residues and contaminated materials in accordance with applicable chemical waste procedures, and consult the manufacturer's safety data sheet before first use.
