1,2,3-Indantrione monohydrate (Ninhydrin)
Ketones and quinones, whether or not with other oxygen function, and their halogenated, sulfonated, nitrated, or nitrosated derivatives: > Ketone-alcohols and ketone-aldehydes: > Other: > Aromatic: > 1,2,3-Indantrione monohydrate (Ninhydrin)
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2914.40.20.00
Ninhydrin Powder (1,2,3-Indantrione Monohydrate)
Pure 1,2,3-Indantrione monohydrate, commonly known as Ninhydrin, is an aromatic ketone-aldehyde used primarily as a reagent for detecting amino acids through color development. It falls under HTS 2914.40.2000 as a chemically defined aromatic ketone-alcohol/aldehyde per Chapter 29 notes. Typically supplied as a white to pale yellow crystalline powder for laboratory applications.
Ninhydrin Analytical Reagent Grade
High-purity Ninhydrin (99+%) certified for analytical chemistry applications, particularly amino acid quantification via paper chromatography. Classified under HTS 2914.40.2000 as the specific aromatic ketone-aldehyde derivative. Supplied in amber glass bottles to protect from light degradation.
Forensic Grade Ninhydrin for Fingerprint Detection
Specialty Ninhydrin formulated for latent fingerprint visualization on porous surfaces, producing purple Ruhemann's complex with amino acids. Meets HTS 2914.40.2000 as pure 1,2,3-Indantrione monohydrate despite forensic end-use. Packaged in 25g quantities for crime scene applications.
Ninhydrin Monohydrate 98% Technical Grade
Technical grade 1,2,3-Indantrione monohydrate (98% purity) used in biochemical research and amino acid analysis. Precisely matches HTS 2914.40.2000 definition for import tariff purposes. Bulk packaged for research institutions and industrial labs.
ACS Reagent Ninhydrin for Chromatography
American Chemical Society (ACS) reagent grade Ninhydrin meeting stringent purity standards for thin-layer chromatography (TLC) amino acid visualization. Classified specifically under HTS 2914.40.2000 as the pure aromatic compound. Supplied with full traceability documentation.