5600. Luminol

Nomenclature

CAS number: 521-31-3
5-Amino-2,3-dihydro-1,4-phthalazinedione; o-aminophthalylhydrazide; 3-aminophthalic hydrazide; o-aminophthaloyl hydrazide.
C8H7N3O2; mol wt 177.16.
C 54.24%, H 3.98%, N 23.72%, O 18.06%.

Description and references

Prepn from 3-nitrophthalic acid: Huntress et al., J. Am. Chem. Soc. 56, 241 (1934); Redemann, Redemann, Org. Synth. 29, 78, 8 (1949); L. Fieser, Organic Experiments (Boston, 1964) pp 240-242. Chemiluminescent: Weber, Ber. 75, 565 (1942); Weber et al., ibid. 76, 366 (1943).

Chemical structure

Properties

Crystals, mp 319-320°. Oxidation of luminol is accompanied by a striking emission of light.

Note

Not to be confused with Luminal.

Use

Detection of copper, iron, peroxides, cyanides.