Collection: UV Detection Labeling Reagents (for Carboxyl Groups) [HPLC Derivatization Reagents]

UV Detection Labeling Reagents (for Carboxyl Groups) [HPLC Derivatization Reagents] — includes labeling reagents that react with carboxyl groups to form UV-detectable ester or amide derivatives, such as the phenacyl bromide and triazene classes. This derivatization converts carboxylic acids that are difficult to detect into forms with strong UV absorption, so they are detected well in HPLC analysis.

These reagents are used by analytical chemists for pre-column derivatization of fatty acids or other carboxylic acids that lack a natural UV chromophore, so target compounds can be quantified with a UV detector on HPLC. The phenacyl bromide class is commonly used in fatty acid analysis in food and pharmaceutical laboratories, while triazene reagents are used for esterification of carboxylic acids before chromatographic separation. This method increases detection sensitivity for low-concentration compounds in complex samples.

Product examples in this collection: TCI B0949 17683-09-9 1-Benzyl-3-p-tolyltriazene [for Esterification], TCI M0815 5000-65-7 3'-Methoxyphenacyl Bromide, TCI B0633 135-73-9 2-Bromo-4'-phenylacetophenone, TCI A5501 99-73-0 4-Bromophenacyl Bromide [for HPLC Labeling], TCI A5508 70-11-1 Phenacyl Bromide [for HPLC Labeling], TCI A5502 24463-19-2 9-Chloromethylanthracene [for HPLC Labeling], TCI A5506 2978-11-2 N,N'-Diisopropyl-O-(4-nitrobenzyl)isourea [for HPLC Labeling], TCI A5503 54455-37-7 N-Chloromethyl-4-nitrophthalimide [for HPLC Labeling].

Selection of reagents depends on selectivity toward carboxyl groups, leaving group reactivity (for example bromide versus chloride), and reagent stability against moisture during storage and use in the laboratory. All products are genuine Tokyo Chemical Industry (TCI) Japan products, with purity, packaging, and storage conditions listed on each item's page.

Other parallel categories under HPLC Derivatization Reagents, often used together in one laboratory workflow:

• Fluorescence Detection Labeling Reagents (for Amino Groups) [HPLC Derivatization Reagents]
• UV Detection Labeling Reagents (for Amino Groups) [HPLC Derivatization Reagents]
• Fluorescence Detection Labeling Reagents (for Carboxy Groups) [HPLC Derivatization Reagents]
• Fluorescence Detection Labeling Reagents (for Hydroxy Groups) [HPLC Derivatization Reagents]
• Fluorescence Detection Labeling Reagents (for Thiol Groups) [HPLC Derivatization Reagents]
• Fluorescence Detection Labeling Reagents (for Carbonyl Groups) [HPLC Derivatization Reagents]

Back to HPLC Derivatization Reagents. For large-volume procurement, special packaging, or specific grades, contact the AMI Scientific team — official distributor of TCI Japan in Indonesia — for availability checks and lead times directly from Japan.