Derivative Type: Hydrate
Properties: Crystals from aq acetone. Chars at 240°, turning black up to 300° without melting.
Derivative Type: Trihydrochloride
CAS Registry Number: 6533-54-6
Percent Composition: C 36.40%, H 6.40%, N 14.15%, O 27.71%, Cl 15.35%
Properties: Amorphous solid, dec 190-195°, or crystals from methanol. Soly in methanol at 25°: 45 mg/ml for crystalline form; 1 g/ml for amorphous form. Crystals contain methanol of crystn which is lost on heating at 100℃. [a]D25 -95° (1% soln).
Optical Rotation: [a]D25 -95° (1% soln)
Derivative Type: Sesquisulfate
CAS Registry Number: 5490-27-7
Trademarks: Didromycine (Specia); Double-mycin (Heyl); Sol-Mycin (Roxane); Streptomagma (Wyeth)
Percent Composition: C 34.52%, H 6.07%, N 13.42%, O 39.41%, S 6.58%
Properties: Amorphous solid; crystalline form from water + (methanol, methyl ethyl ketone, or other low boiling solvent). Crystals, dec 255-265°, also reported as dec 250°. [a]D25 -88.5° (1% soln). Crystals show very little hygroscopicity in contrast to amorphous form. Both forms are very sol in water. Solubility in 50% methanol + water: 0.8 mg/ml for crystals; 100 mg/ml for amorphous form. Soly at 28° (mg/ml): 20 in water; 0.35 in methanol; 0.10 in ethanol: Weiss et al., Antibiot. Chemother.
7, 374 (1957). Each milligram contains 800 micrograms of dihydrostreptomycin base on a potency basis.
Optical Rotation: [a]D25 -88.5° (1% soln)
Derivative Type: Pantothenate
CAS Registry Number: 3563-84-6
Trademarks: Didrothenat (Grñenthal); Pantostrep
Percent Composition: C 44.88%, H 7.28%, N 13.96%, O 33.88%
Therap-Cat: Antibacterial (tuberculostatic).
Therap-Cat-Vet: Antibacterial.
Keywords: Antibacterial (Antibiotics); Aminoglycosides; Antibacterial (Tuberculostatic).
产品链接: 128-46-1››