Sulfacytine
Title: Sulfacytine
CAS Registry Number: 17784-12-2
CAS Name: 4-Amino-N-(1-ethyl-1,2-dihydro-2-oxo-4-pyrimidinyl)benzenesulfonamide
Additional Names: N¢-(1-ethyl-1,2-dihydro-2-oxo-4-pyrimidinyl)sulfanilamide; 1-ethyl-N-sulfanilylcytosine; N-sulfanilyl-1-ethylcytosine
Manufacturers' Codes: CL-636
Trademarks: Renoquid (Glenwood)
Molecular Formula: C12H14N4O3S
Molecular Weight: 294.33
Percent Composition: C 48.97%, H 4.79%, N 19.04%, O 16.31%, S 10.89%
Literature References: Prepn: NL 6610815 corresp to Doub, Krolls, US 3375247 (1967, 1968 to Parke, Davis). Prepn and activity: Doub et al., J. Med. Chem. 13, 242 (1970).
Properties: Crystals from butyl alcohol, methanol, mp 166.5-168°, (monohydrate, mp 104°). uv max (methanol): 263, 297 nm (E1%1cm 584, 762). Equilibrium soly in pH 5 buffer at 37°: approx 175 mg/100 ml. Soly increases with increasing pH. pK¢ 6.9.
Melting point: mp 166.5-168°; mp 104°
pKa: pK¢ 6.9
Absorption maximum: uv max (methanol): 263, 297 nm (E1%1cm 584, 762)
Therap-Cat: Antibacterial.
Keywords: Antibacterial (Synthetic); Sulfonamides.

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