| Title:  Nitrofurazone CAS Registry Number:  59-87-0 CAS Name:  2-[(5-Nitro-2-furanyl)methylene]hydrazinecarboxamide Additional Names:  5-nitro-2-furaldehyde semicarbazone Trademarks:  Amifur (Norwich);  Furacin (Eaton);  Chemofuran;  Furesol;  Nifuzon;  Nitrofural;  Nitrozone (Century);  Furacinetten;  Furacoccid;  Furazol W;  Mammex;  Furaplast;  Coxistat;  Aldomycin;  Nefco;  Vabrocid Molecular Formula:  C6H6N4O4 Molecular Weight:  198.14 Percent Composition:  C 36.37%, H 3.05%, N 28.28%, O 32.30% Literature References:  Prepd from 2-formyl-5-nitrofuran and semicarbazide hydrochloride:  Stillman, Scott, US 2416234 (1947 to Eaton Labs.).  Alternate route:  Gever, O'Keefe, US 2927110 (1960 to Norwich Pharmacal).  LC-MS/MS determn of residues in meat:  P. Mottier et al., J. Chromatogr. A 1067, 85 (2005).  Toxicity:  J. Godwin et al., J. Am. Med. Assoc. 133, 299 (1947).  Tumorigenic activity:  Morris et al., Cancer Res. 29, 2145 (1969); Ertürk et al., ibid. 30, 1409 (1970). Properties:  Pale yellow needles, dec 236-240°.  Bitter aftertaste.  Darkens on prolonged exposure to light.  uv max:  260, 375 nm.  Very slightly sol in water (1:4200); slightly sol in alcohol (1:590), in propylene glycol (1:350).  Sol in alkaline solns with dark orange color.  Insol in ether.  pH of satd water soln 6.0 to 6.5.  LD50 in rats (g/kg):  0.59 orally; 3.0 s.c. (Godwin). Absorption maximum:  uv max:  260, 375 nm Toxicity data:  LD50 in rats (g/kg):  0.59 orally; 3.0 s.c. (Godwin) Therap-Cat:  Anti-infective (topical). Therap-Cat-Vet:  Antimicrobial. Keywords:  Antiseptic/Disinfectant; Nitrofurans.  |