Properties: Crystals from water, mp 175.5-177°. [a]D25 -11° (ethanol). uv max (0.1N NaOH): 275 nm (e 20300); in 0.1N HCl: 267.5 nm (e 19500). pKa: 6.8, 7.2. Sparingly sol in water, organic solvents. LD50 in mice (mg/kg): 350 i.v.; 525 i.p.; 675 orally (Porter, 1952).
Melting point: mp 175.5-177°
pKa: pKa: 6.8, 7.2
Optical Rotation: [a]D25 -11° (ethanol)
Absorption maximum: uv max (0.1N NaOH): 275 nm (e 20300); in 0.1N HCl: 267.5 nm (e 19500)
Toxicity data: LD50 in mice (mg/kg): 350 i.v.; 525 i.p.; 675 orally (Porter, 1952)
Derivative Type: Dihydrochloride
CAS Registry Number: 58-58-2
Percent Composition: C 48.53%, H 5.74%, N 18.01%, O 14.69%, Cl 13.02%
Properties: White crystals or powder. Prepd as the dihydrate, mp 174° (dec). Sol in water.
Melting point: mp 174° (dec)
Use: Research tool for studying protein synthesis; cell line selection agent in gene transfer experiments.
产品链接: 53-79-2››