meso-Tartaric acid monohydrate
Meso-Tartaric acid monohydrate (CAS: 5990-63-6; C4H6O6 · H2O) is a chiral organic compound with a molecular weight of 168.10 g/mol. It is a stereoisomer of tartaric acid, distinguished by its achiral nature due to an internal plane of symmetry. This versatile chemical building block serves as a reactant in stereoisomeric discrimination and is valuable in various organic synthesis pathways.
- IUPAC
- Mesotartaric acid
- Synonyms
- Mesotartaric acid

Stereoisomeric Discrimination
Meso-Tartaric acid monohydrate acts as a reactant in studies involving stereoisomeric discrimination, particularly in the context of DNA compaction. Its specific chiral properties allow it to interact selectively with different stereoisomers.
Organic Synthesis Building Block
As a carboxylic acid and a carbonyl compound, meso-tartaric acid monohydrate serves as a valuable building block in organic synthesis. Its unique structure enables its use in the creation of more complex molecular architectures.
Chemical Research
This compound is employed in research settings for investigating chiral recognition and separation techniques. Its well-defined stereochemistry makes it a useful tool for chemists and biochemists.
| Molecular weight | 168.10 |
|---|---|
| Empirical formula | C4H6O6 · H2O |
| Impurities tested | ~10% water |
| Application | Reactant invovled in stereoisomeric discrimination in DNA compaction1 |
| Melting point | 165-166 °C (anhydrous)(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36/37 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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 meso-Tartaric acid monohydrate used for?
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Meso-Tartaric acid monohydrate is used as a reactant in stereoisomeric discrimination, for example in DNA compaction studies, and as a building block in organic synthesis and chemical research.
What is the CAS number and chemical formula for meso-Tartaric acid monohydrate?
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The CAS number is 5990-63-6, and the chemical formula is C4H6O6 · H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies meso-Tartaric acid monohydrate with approximately 10% water content. We do not represent this product as USP, BP, EP or any pharmacopoeia grade. It is suitable for research and general chemical synthesis purposes.
What are the safety and handling precautions for meso-Tartaric acid monohydrate?
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This compound is classified as a warning substance, causing skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). When handling, wear a dust mask type N95, eyeshields, and gloves. Ensure good ventilation.
How is meso-Tartaric acid monohydrate packaged and shipped?
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Meso-Tartaric acid monohydrate is available for expert packing, shipping, and global export by Tech Serve Solutions.
How can I request a sample or quote for meso-Tartaric acid monohydrate?
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Please contact our sales team via the website or your dedicated account manager to request a sample or obtain a quotation for meso-Tartaric acid monohydrate.
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