Luminol - 3-Aminophthalhydrazide - Chemiluminescence Pure [CAS: 521-31-3] - 10g

Luminol
Other Names: 3-Aminophthalhydrazide, 5-Amino-2,3-dihydro-1,4-phthalazinedione
CAS Number: 521-31-3
Sum Formula: C₈H₇N₃O₂
Molar Mass: 177.16 g/mol
Appearance: Pale yellow to light beige crystalline powder

Luminol is an organic compound best known for its ability to exhibit chemiluminescence — emitting a blue glow when oxidized in an appropriate alkaline medium. It is widely used in chemical detection, forensic science, and research involving reactive oxygen species.

Chemical and Physical Properties

• Density: ~1.6 g/cm³

• Melting Point: 319–325°C (decomposes)

• Boiling Point: Not applicable (decomposes)

• Solubility in Water: Slightly soluble in cold water; soluble in alkaline solutions

• Solubility in Other Solvents: Soluble in DMSO, ethanol, and basic solutions

• Odor: Odorless

Applications

• Forensic Science: Used to detect trace amounts of blood at crime scenes via chemiluminescent reaction with iron in hemoglobin.

• Chemical Analysis: Applied in assays for detecting reactive oxygen species or metal ions.

• Research and Education: Demonstrates oxidation-reduction and chemiluminescence reactions in teaching environments.

• Analytical Chemistry: Functions as a probe in various biochemical assays and sensor development.

Safety

Signal Word: Warning

Handling and Storage

• Storage Conditions: Store in a tightly closed container in a cool, dry, well-ventilated area. Protect from light and moisture.

• Handling Precautions: Avoid formation of dust. Handle under inert atmosphere when possible. Use proper personal protective equipment (PPE).