6-Mercaptopurine monohydrate
6-Mercaptopurine monohydrate (CAS: 6112-76-1) is a purine derivative with the chemical formula C5H4N4S·H2O and a molecular weight of 170.19 g/mol. This compound, also known as 6-thiohypoxanthine monohydrate, serves as a valuable building block in chemical synthesis. It is primarily utilised in research and development settings for the creation of novel molecules and intermediates within heterocyclic chemistry.
- IUPAC
- 6-Purinethiol,6-Thiohypoxanthine
- Synonyms
- 6-Purinethiol6-Thiohypoxanthine

Chemical Synthesis Intermediate
6-Mercaptopurine monohydrate acts as a key intermediate in the synthesis of various complex organic molecules. Its purine structure with a reactive thiol group makes it useful for further chemical modifications.
Heterocyclic Chemistry Research
This compound is employed in academic and industrial research laboratories focused on heterocyclic building blocks. It aids in the development of new compounds with potential biological or material science applications.
Purine Derivative Studies
As a purine derivative, 6-Mercaptopurine monohydrate is utilised in studies exploring the synthesis and properties of related compounds. Researchers leverage its structure to investigate structure-activity relationships.
| Molecular weight | 170.19 |
|---|---|
| Empirical formula | C5H4N4S·H2O |
| Assay | 98% |
| Grade | puriss. |
| Melting point | >300 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- 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) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 22-36/37/39-45 |
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 6-Mercaptopurine monohydrate used for?
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6-Mercaptopurine monohydrate is used as a building block in chemical synthesis, particularly within heterocyclic chemistry and purine derivative research.
What is the CAS number and formula for 6-Mercaptopurine monohydrate?
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The CAS number for 6-Mercaptopurine monohydrate is 6112-76-1, and its empirical formula is C5H4N4S·H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 6-Mercaptopurine monohydrate in a puriss. grade with an assay of 98%. We do not represent this product as USP, BP, or EP grade.
How should 6-Mercaptopurine monohydrate be handled?
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Handle with care to avoid dust formation. Use a dust mask (type N95 recommended), eyeshields, and gloves. Avoid breathing dust and ensure good ventilation. For detailed safety information, consult the Safety Data Sheet (SDS).
Is 6-Mercaptopurine monohydrate exported by Tech Serve Solutions?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 6-Mercaptopurine monohydrate.
How can I request a sample or quote for 6-Mercaptopurine monohydrate?
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To request a sample or quote, please use the enquiry form on our website or contact our sales team directly with your requirements.
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