Properties: Amorphous powder. [a]D25 -20° (water). pKa¢1 6.95, pKa¢2 8.70. Sol in water, methanol, ethanol. Insol in acetone, hydrocarbon solvents.
pKa: pKa¢1 6.95, pKa¢2 8.70
Optical Rotation: [a]D25 -20° (water)
Derivative Type: Dihydrochloride pentahydrate
CAS Registry Number: 22189-32-8
Trademarks: Spectam (Abbott); Stanilo (Pharmacia); Trobicin (Pharmacia Upjohn)
Percent Composition: C 33.95%, H 7.33%, N 5.66%, O 38.76%, Cl 14.31%
Literature References: Exists as a ketone hydrate and not in the carbonyl form (Cochran et al.).
Properties: Colorless needles from aq acetone, mp 205-207° (dec). [a]D +14.8° (c = 0.42 in water). Soly in water, methanol, propylene glycol, formamide, DMSO, 0.1N NaOH, 0.1N HCl: 20 mg/ml. Soly (mg/ml): chloroform 0.042; acetone 0.015; diethyl ether 0.010.
Melting point: mp 205-207° (dec)
Optical Rotation: [a]D +14.8° (c = 0.42 in water)
Derivative Type: Sulfate tetrahydrate
CAS Registry Number: 64058-48-6
Percent Composition: C 33.46%, H 6.82%, N 5.57%, O 47.76%, S 6.38%
Properties: White crystals from aq acetone, mp ~185° (dec). [a]D25 +17.0° (c = 1 in water). pKa¢1 7.00, pKa¢2 8.75. Soly in water, DMSO: 225, 5-10 (mg/ml). Practically insol in pyridine, chloroform, ethanol, ethyl acetate, cyclohexane, benzene, acetone, DMF, dioxane, acetonitrile.
Melting point: mp ~185° (dec)
pKa: pKa¢1 7.00, pKa¢2 8.75
Optical Rotation: [a]D25 +17.0° (c = 1 in water)
Therap-Cat: Antibacterial.
Therap-Cat-Vet: Antibacterial.
Keywords: Antibacterial (Antibiotics); Aminoglycosides.
产品链接: 1695-77-8››