Luminol

Luminol^[1]

Names
Preferred IUPAC name 5-Amino-2,3-dihydrophthalazine-1,4-dione
Other names 5-Amino-2,3-dihydro-1,4-phthalazinedione o-Aminophthaloyl hydrazide o-Aminophthalyl hydrazide 3-Aminophthalhydrazide 3-Aminophthalic hydrazide
Identifiers
CAS Number	521-31-3 Y
3D model (JSmol)	Interactive image
ChEMBL	ChEMBL442329 Y
ChemSpider	10192 Y
ECHA InfoCard	100.007.556
EC Number	208-309-4
PubChem CID	10638
UNII	5EXP385Q4F Y
CompTox Dashboard (EPA)	DTXSID5024504
InChI InChI=1S/C8H7N3O2/c9-5-3-1-2-4-6(5)8(13)11-10-7(4)12/h1-3H,9H2,(H,10,12)(H,11,13) Y Key: HWYHZTIRURJOHG-UHFFFAOYSA-N Y InChI=1/C8H7N3O2/c9-5-3-1-2-4-6(5)8(13)11-10-7(4)12/h1-3H,9H2,(H,10,12)(H,11,13) Key: HWYHZTIRURJOHG-UHFFFAOYAB
SMILES C1=CC2=C(C(=C1)N)C(=O)NNC2=O
Properties
Chemical formula	C8H7N3O2
Molar mass	177.16 g/mol
Melting point	319 °C (606 °F; 592 K)
Hazards
NFPA 704 (fire diamond)	2 1 0
Safety data sheet (SDS)	MSDS for luminol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Luminol (C₈H₇N₃O₂) is a chemical that exhibits chemiluminescence, with a blue glow, when mixed with an appropriate oxidizing agent. Luminol is a white-to-pale-yellow crystalline solid that is soluble in most polar organic solvents but insoluble in water.

Forensic investigators use luminol to detect trace amounts of blood at crime scenes, as it reacts with the iron in hemoglobin. Biologists use it in cellular assays to detect copper, iron, and cyanides as well as specific proteins via western blotting.^[2]

When luminol is sprayed evenly across an area, trace amounts of an activating oxidant make the luminol emit a blue glow that can be seen in a darkened room. The glow only lasts about 30 seconds but can be documented photographically. The glow is stronger in areas receiving more spray; the intensity of the glow does not indicate the amount of blood or other activator present.