1374. Brilliant Green

Nomenclature

CAS number: 633-03-4
N-[4-[[4-(Diethylamino)phenyl]phenylmethylene]-2,5-cyclohexadien-1-ylidene]-N-ethylethanaminium sulfate (1:1); C.I. Basic Green 1; C.I. 42040; malachite green G; emerald green; diamond green G; fast green J; solid green.
C27H34N2O4S; mol wt 482.63.
C 67.19%, H 7.10%, N 5.80%, O 13.26%, S 6.64%.

Description and references

Prepn: Doebner, Ber. 13, 2222 (1880); Fischer, ibid. 14, 2521 (1881); Colour Index vol. 4 (3rd ed., 1971) p 4382. Toxicity: Anderson, Proc. Soc. Exp. Biol. Med. 31, 825 (1934). Antibacterial activity: O. H. Paetzold, Arch. Klin. Exp. Dermatol. 224, 90 (1966); idem, Arch. Dermatol. Forsch. 243, 1 (1972). Review: H. J. Conn's Biological Stains, R. D. Lillie, Ed. (Williams & Wilkins, Baltimore, 9th ed., 1977) pp 251-252, 580.

Chemical structure

Properties

Minute, glistening, golden crystals. Soluble in water or alcohol with green color. Absorption max: 623 nm. Soln changes color from yellow to green at pH 0.0 to 2.6. LD100 i.v. in mice: 3 mg/kg (Anderson).

Use

Dyeing silk, wool, leather, jute and cotton yellowish-green; manuf green ink; biological stain; indicator.

Therapeutic Category

Antiseptic.

Therapeutic Category (Veterinary)

Antiseptic for external and internal (oral) use. In wounds and scours.

Keywords

Antiseptic/Disinfectant; Dyes