Micronomicin sulfate  (Synonyms: Gentamicin C2b sulfate; Antibiotic XK-62-2 sulfate; Sagamicin sulfate)

Micronomicin sulfate (Gentamicin C2b sulfate) is an aminoglycoside antibiotic isolated from Micromonospora. Micronomicin sulfate is a broad-spectrum antibiotic close to the gentamicin-type antibiotics, exhibits a high activity against Pseudomonas, Proteus, Klebsiella pneumoniae, Serratia, etc (MIC=0.001-8.3 μg/ml)^[1][2].

Micronomicin has a potent antibacterial activity, it is active against Staphylococcus aureus FDA 209 P, Staphylococcus aureus with the minimal inhibitory values of 0.01 μg/ml. It is also against Escherichia coli St.M. 589, Baker 2, F 14-BK, and R5/W677 with the minimal inhibitory values of 0.75 μg/ml, 0.3 μg/ml, 0.03 μg/ml and 0.03 μg/ml. And it is active against Pseudomonas aeruginosa strains and lebsiella pneumoniae strains (MICs = 0.03-17.5 μg/ml)^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Micronomicin sulfate is highly active against various bacterial infections in mice, and has an intravenous acute LD₅₀ in mice of 93 mg/kg^[1].
Micronomicin sulfate (intravenous injection; 4-100 mg/kg; 30 days) is injected for subacute toxicity study. The wistar rats dies at the dose level of 100 mg/kg (10 out of 30 animals): renal disorders and ataxia. The renal histological disorders occurrs mainly at the dose levels of 25 mg/kg and over^[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

C₂₀H₄₁N₅O₇.xH₂SO₄

66803-19-8

Solid

White to yellow

O=S(O)(O)=O.O[C@H]([C@H]([C@@](C)(O)CO1)NC)[C@@]1([H])O[C@@H]2[C@H]([C@@H]([C@@H](N)C[C@H]2N)O[C@@]3([H])O[C@@H](CC[C@H]3N)CNC)O.[x]

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

• [1]. R Okachi,et al. A New Antibiotic XK-62-2 (Sagamicin). I. Isolation, Physicochemical and Antibacterial Properties. J Antibiot (Tokyo)  [Content Brief]

  [2]. P J Daniels, The Gentamicin Antibiotics. 6. Gentamicin C2b, an Aminoglycoside Antibiotic Produced by Micromonospora Purpurea Mutant JI-33. J Antibiot (Tokyo)  [Content Brief]

  [3]. T Hara, et al. Safety Evaluation of Micronomicin V. Subacute Toxicity in Rats After Intravenous Injection. Jpn J Antibiot. 1983 Nov;36(11):3208-25.  [Content Brief]