Meropenem trihydrate
Meropenem trihydrate (CAS: 119478-56-7), a broad-spectrum carbapenem antibiotic, is supplied by TSS as a white to off-white powder. With the molecular formula C17H25N3O5S · 3H2O and a molecular weight of 437.51, it is a critical compound in antibacterial research and development. It functions by inhibiting bacterial cell wall synthesis, demonstrating efficacy against a wide range of Gram-positive and Gram-negative bacteria. Meropenem is primarily utilised in laboratory settings for research purposes and as a reference standard in analytical chemistry.
- IUPAC
- (1R,5S,6S)-2-[(3S,5S)-5-(dimethylaminocarbonyl)pyrrolidin-3-ylthio]-6-[(R)-1-hydroxyethyl]-1-methylcarbapen-2-em-3-carboxylic acid trihydrate

Antibacterial Research
Meropenem trihydrate serves as a vital tool in microbiology and pharmacology for investigating bacterial resistance mechanisms and developing new therapeutic strategies. Its well-defined activity spectrum makes it a valuable reference compound in antimicrobial studies.
Analytical Chemistry Standard
Used as a reference standard for the quantification and identification of meropenem in various matrices through techniques such as High-Performance Liquid Chromatography (HPLC). This ensures accuracy and reliability in quality control processes.
Drug Discovery and Development
Investigated for its potential in developing novel antibiotic formulations or combination therapies. Researchers utilise meropenem trihydrate to explore its efficacy against challenging pathogens and to understand its pharmacokinetic properties.
| Molecular weight | 437.51 |
|---|---|
| Empirical formula | C17H25N3O5S · 3H2O |
| Assay | ≥98% (HPLC) |
| Form | powder |
| Colour | white to off-white |
| Solubility | DMSO: ≥20 mg/mL |
| Storage temperature | −20°C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Storage Condition | desiccated |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Meropenem trihydrate used for?
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Meropenem trihydrate is used in laboratory settings for antibacterial research, as an analytical standard for quantification, and in drug discovery and development to study its properties and efficacy against various bacteria.
What are the CAS number and formula for Meropenem trihydrate?
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The CAS number for Meropenem trihydrate is 119478-56-7, and its empirical formula is C17H25N3O5S · 3H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Meropenem trihydrate with a purity of ≥98% as determined by HPLC. This is a research-grade material, and TSS does not represent it as USP, BP, or EP grade.
What are the safety and handling precautions for Meropenem trihydrate?
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Meropenem trihydrate is classified as a Warning, with hazards including skin irritation (H315) and eye irritation (H319). It is advised to avoid contact with skin and eyes and to handle it in a well-ventilated area. Always consult the Safety Data Sheet (SDS) before use.
How is Meropenem trihydrate shipped and exported?
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Meropenem trihydrate is desiccated and shipped under controlled conditions, typically at -20°C. As a global supplier, Tech Serve Solutions has extensive experience in exporting fine chemicals worldwide, adhering to all relevant shipping regulations.
How can I request a sample or quote for Meropenem trihydrate?
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To request a sample or a quote for Meropenem trihydrate, please contact the Tech Serve Solutions sales team via our website or by calling our office. Please specify the quantity and intended use.
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