Ninhydrin Powder (1,2,3-Indantrione Monohydrate) from Mexico
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.
Duty Rate — Mexico → United States
Rate breakdown
Import Tips
• Provide chemical purity certificates (typically ≥98%) and CAS number (485-47-2) documentation to verify classification under Chapter 29
• Ensure proper Hazard Communication labeling as it’s a skin and eye irritant; include Safety Data Sheets (SDS) for customs clearance
• Avoid misclassification as a finished test kit—pure chemical only qualifies under this specific HTS code