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Ribocil-C Racemate 

Cat. No.: HY-19488 Purity: >98.0%
Handling Instructions

Ribocil-C Racemate is the racemate of Ribocil-C. Ribocil-C is a highly selective inhibitor of bacterial riboflavin riboswitches.

For research use only. We do not sell to patients.

Ribocil-C Racemate Chemical Structure

Ribocil-C Racemate Chemical Structure

Size Price Stock
5 mg USD 420 Get quote
10 mg USD 600 Get quote
50 mg USD 1800 Get quote
100 mg USD 2520 Get quote

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Other Forms of Ribocil-C Racemate:

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Ribocil-C Racemate is the racemate of Ribocil-C. Ribocil-C is a highly selective inhibitor of bacterial riboflavin riboswitches.

IC50 & Target

Bacterial riboflavin riboswitches[1]

In Vitro

Ribocil-C is a highly selective inhibitor of the flavin mononucleotide (FMN) riboswitch that controls expression of de novo riboflavin (RF, vitamin B2) biosynthesis in Escherichia coli. Ribocil-C specifically inhibits dual FMN riboswitches, separately controlling RF biosynthesis and uptake processes essential for Staphylococcus aureus growth and pathogenesis[1]. Ribocil-C is a small-molecule synthetic mimic of FMN that binds the FMN riboswitch of multiple GN bacteria, including Escherichia coli, Pseudomonas aeruginosa, and Acinetobacter baumannii, to inhibit ribB expression, RF synthesis, and consequently arrest bacterial growth[1][2].

In Vivo

Higher dose Ribocil-C treatment groups (60 and 120 mg kg21 ribocil-C) demonstrate a dose-dependent reduction in bacterial burden of 1.87 and 3.29 log10[CFU per g spleen] reduction respectively versus shamtreated mice, without mortality or gross effects of toxicity observed[2].

Molecular Weight







Room temperature in continental US; may vary elsewhere

Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : ≥ 30 mg/mL (71.51 mM)

*"≥" means soluble, but saturation unknown.

Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.3838 mL 11.9190 mL 23.8379 mL
5 mM 0.4768 mL 2.3838 mL 4.7676 mL
10 mM 0.2384 mL 1.1919 mL 2.3838 mL
*Please refer to the solubility information to select the appropriate solvent.
Animal Administration

DBA/2J mice are infected by intraperitoneal injectionwith Escherichia coli strain MB5746 (5×104 CFU per mouse) and treated by subcutaneous injection with Ribocil-C (30, 60, 120 mg/kg) or ciprofloxacin (0.5mg/kg) three times over a 24 h infection period. Spleens are aseptically collected from five mice per group and the reduction of log[CFU per g spleen tissue] is calculated on the basis of bacterial burden in spleens of the vehicle-treated (10% DMSO) control group[2].

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

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