Cat. No.: HY-18324

CRS3123

(Synonyms: REP-3123)

1 Cited Publications

고객리뷰

Based on 1 publication(s) in Google Scholar

CRS3123 is a potent and orally active narrow-spectrum antibiotic. CRS3123 inhibits bacterial methionyl-tRNA synthetase. CRS3123 has potent activity against Clostridium difficile (C. difficile) and aerobic Gram-positive bacteria but little activity against Gram-negative bacteria, including anaerobes. CRS3123 has the potential for the research of C. difficile infections.

연구목적의 판매만을 진행합니다. 환자를 대상으로 한 판매는 하지 않습니다.

Purity: 99.37%
CAS No.: 1013915-71-3
화학식: C₁₉H₁₉Br₂N₃O₂S
분자량:513.25

보관:

Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month

CRS3123 Chemical Structure

CAS No.: 1013915-71-3

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Top Publications Citing

Use of MCE Products

Fluorescent Dye

Strong Fluorescence Signal / Multi-Disciplinary Applications / High Fluorescence Specificity

Biological Activity

제품 설명

All Antibiotic Isoforms :

Chemical Information

CAS No. 1013915-71-3
Appearance Solid
분자량 513.25
화학식 C₁₉H₁₉Br₂N₃O₂S
Color Off-white to light yellow
SMILES

BrC1=C(OCC2)C([C@@H]2NCCCNC3=CC(C(SC=C4)=C4N3)=O)=CC(Br)=C1
Synonyms

REP-3123
선적

Room temperature in continental US; may vary elsewhere.

보관

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

Publications (1)

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Journal Impact Factor

Expert Opin Investig Drugs

New investigational agents for the treatment of Clostridioides difficile infections. [Abstract]

2025 Oct 28:1-17. PMID: 41117146

용액&용해도

In Vitro:

DMSO : 100 mg/mL (194.84 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

View the Complete Stock Solution Preparation Table

Preparing Stock Solutions

View the Complete Stock Solution Preparation Table

Concentration Solvent Mass

1 mg

5 mg

10 mg

Concentration

Solvent

Mass

1 mM

1.9484 mL

9.7418 mL

19.4837 mL

5 mM

0.3897 mL

1.9484 mL

3.8967 mL

10 mM

0.1948 mL

0.9742 mL

1.9484 mL

Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.

Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

몰농도 계산기

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass Mass

Concentration Concentration

Volume Volume

Molecular Weight Molecular Weight

농도 희석 계산기

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

Concentration _(start) Concentration _(start)

Volume _(start) Volume _(start)

Concentration _(final) Concentration _(final)

Volume _(final) Volume _(final)

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

Stock Solution Working Solution

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 90% Corn Oil

Solubility: ≥ 2.5 mg/mL (4.87 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage Dosage
mg/kg
Animal Weight (Per Animal) Animal Weight (Per Animal)
g
Dosing Volume (Per Animal) Dosing Volume (Per Animal)
μL
Number of Animals Number of Animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

%
DMSO +

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
%
+
+
%
Tween-80 + +
%
Saline +

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Working solution concentration: 0.22 mg/mL

순도&문서

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (270 KB)
SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Handling Instructions (2659 KB)

References

[1]. Lomeli BK, et al. Multiple-Ascending-Dose Phase 1 Clinical Study of the Safety, Tolerability, and Pharmacokinetics of CRS3123, a Narrow-Spectrum Agent with Minimal Disruption of Normal Gut Microbiota. Antimicrob Agents Chemother. 2019; 64(1):e01395-19. [Content Brief]

Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

Complete Stock Solution Preparation Table

Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO	1 mM	1.9484 mL	9.7418 mL	19.4837 mL	48.7092 mL
	5 mM	0.3897 mL	1.9484 mL	3.8967 mL	9.7418 mL
	10 mM	0.1948 mL	0.9742 mL	1.9484 mL	4.8709 mL
	15 mM	0.1299 mL	0.6495 mL	1.2989 mL	3.2473 mL
	20 mM	0.0974 mL	0.4871 mL	0.9742 mL	2.4355 mL
	25 mM	0.0779 mL	0.3897 mL	0.7793 mL	1.9484 mL
	30 mM	0.0649 mL	0.3247 mL	0.6495 mL	1.6236 mL
	40 mM	0.0487 mL	0.2435 mL	0.4871 mL	1.2177 mL
	50 mM	0.0390 mL	0.1948 mL	0.3897 mL	0.9742 mL
	60 mM	0.0325 mL	0.1624 mL	0.3247 mL	0.8118 mL
	80 mM	0.0244 mL	0.1218 mL	0.2435 mL	0.6089 mL
	100 mM	0.0195 mL	0.0974 mL	0.1948 mL	0.4871 mL

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CRS3123

Anti-Infection Compound Library

Immunology/Inflammation Compound Library

Antibacterial Compound Library

Orally Active Compound Library

Antibiotics Library

Heterocyclic Compound Library

Bioactive Compound Library Max

MCE Bioactive Compound Library

Bioactive Compound Library

High-Throughput Bioactive Compound Library

Publications Citing Use of MedChemExpress (MCE) CRS3123

All Antibiotic Isoforms

Biological Activity

Chemical Information

Publications (1)

용액&용해도

순도&문서

References

Help & FAQs

Complete Stock Solution Preparation Table

CRS3123

Anti-Infection Compound Library

Immunology/Inflammation Compound Library

Antibacterial Compound Library

Orally Active Compound Library

Antibiotics Library

Heterocyclic Compound Library

Bioactive Compound Library Max

MCE Bioactive Compound Library

Bioactive Compound Library

High-Throughput Bioactive Compound Library

Publications Citing Use of MedChemExpress (MCE) CRS3123

All Antibiotic Isoforms

Biological Activity

Chemical Information

Publications (1)

용액&용해도

순도&문서

References

Help & FAQs

Complete Stock Solution Preparation Table

CRS3123 Related Classifications

HY-18324 Related Classifications