Description

Indan-1,2,3-Trione is a high-purity organic compound, also known as ninhydrin, with the CAS registry number 938-24-9. This versatile chemical serves as a critical reagent in analytical chemistry and biochemical research due to its unique reactivity with amino acids and amines. It is an essential material for forensic science laboratories, pharmaceutical quality control, and academic research institutions requiring precise detection and quantification methods.

Application

• Amino Acid Detection & Analysis: Primary use as a visualizing agent in thin-layer chromatography (TLC) and paper chromatography for amino acids, peptides, and amines.
• Forensic Science: Key reagent for developing latent fingerprints on porous surfaces by reacting with amino acids present in sweat residue.
• Biochemical Research: Used in assays for the quantification of amino acids, proteins, and ammonia in various biological samples.
• Pharmaceutical Testing: Employed in purity testing and identification of amino acid-based drugs and raw materials.
• Organic Synthesis: Valuable building block and oxidizing agent in the synthesis of heterocyclic compounds and other specialized organic molecules.
• Food & Beverage Analysis: Applied in methods to detect and measure free amino acids or protein hydrolysis products in foodstuffs.

Basic Information

Product Name	Indan-1,2,3-Trione
CAS No.	938-24-9
Molecular Formula	C9H6O4
Molecular Weight	178.14 g/mol
Synonyms	Ninhydrin; 1,2,3-Indantrione; 1,2,3-Indantrione hydrate; 2,2-Dihydroxy-1,3-indanedione; Triketohydrindene hydrate; Ninhydrin hydrate; Reaction agent with amino acids; Forensic fingerprint reagent
EINECS	213-333-3

Quality Control

Our Indan-1,2,3-Trione is manufactured under a strict quality management system to ensure batch-to-batch consistency and reliability for sensitive analytical applications. Each lot is tested against comprehensive specifications, including purity, melting point, and suitability for its primary use in chromatography and fingerprint development. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with our stringent standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	White to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	240 - 245 °C (with decomposition)
Loss on Drying	≤ 1.0 %
Residue on Ignition	≤ 0.1 %
Suitability Test (Amino Acid)	Passes test

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.