PTC-672 (PTC672) is a novel orally active inhibitor that exhibits a narrow spectrum of activity against Neisseria gonorrhoeae (N. gonorrhoeae, Ng) including MDR isolates (MIC, 0.05 to 0.4 ug/mL), directly inhibits class Ia ribonucleotide reductase (RNR).PTC-672 is inactive against the panel of Gram-negative pathogens and normal gut organism (MICs ranging from 12.5 to ≥62.5 ug/mL).PTC-672 demonstrates clear antibiotic activity preference toward all Neisseria species examined including MDR organisms and the Nm M2092 serogroup B (NMSB) reference strain.PTC-672 targets DNA synthesis and the class Ia RNR large subunit, but not DNA topoisomerases. PTC-672 showed 78% inhibition at 2.5 μM aginst Ng RNR activity, also inhibits Ec RNR, but does not inhibits human RNR at 100 uM.PTC-672 (30 mg/kg) demosntrates in vivo efficacy in a mouse model of gonorrhea.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.