4,5-Diamino-6-hydroxy-2-mercaptopyrimidine
4,5-Diamino-6-hydroxy-2-mercaptopyrimidine (CAS: 1004-76-8) is a pyrimidine derivative with the molecular formula C4H6N4OS and a molecular weight of 158.18 g/mol. This heterocyclic compound serves as a valuable building block in chemical synthesis, particularly for the creation of complex organic molecules. Its structure makes it a useful intermediate in various research and development applications within the chemical and pharmaceutical sectors.
- IUPAC
- 5,6-Diamino-2-thiouracil
- Synonyms
- 5,6-Diamino-2-thiouracil

Chemical Synthesis Intermediate
Utilised as a foundational component in the synthesis of more complex organic compounds. Its reactive functional groups allow for diverse chemical transformations, making it a versatile intermediate in multi-step synthetic pathways.
Heterocyclic Chemistry Research
Serves as a key reagent in the exploration of novel heterocyclic compounds. Its pyrimidine core structure is of interest for developing new chemical entities with potential biological activities or material properties.
Pharmaceutical Building Block
A valuable precursor in the research and development of potential pharmaceutical agents. Its structure can be modified to create compounds screened for various therapeutic targets.
| Molecular weight | 158.18 |
|---|---|
| Empirical formula | C4H6N4OS |
| Assay | 85% |
| Melting point | >300 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine used for?
+
4,5-Diamino-6-hydroxy-2-mercaptopyrimidine is primarily used as a building block and intermediate in chemical synthesis, particularly within heterocyclic chemistry research and the development of potential pharmaceutical agents.
What is the CAS number and formula for 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine?
+
The CAS number is 1004-76-8 and the empirical formula is C4H6N4OS.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine with an assay of 85%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated.
What are the safety and handling recommendations for 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine?
+
This compound requires careful handling. Recommended personal protective equipment includes eyeshields, gloves, and a type N95 (US) or P1 (EN143) respirator filter. It is classified with WGK Germany 3, indicating a high hazard to water.
How is 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine packed, shipped, and exported?
+
As a specialist global supplier, Tech Serve Solutions ensures secure and compliant packing for domestic and international shipment, adhering to all relevant regulations for chemical export.
How can I request a quote or sample for 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine?
+
To request a quote or sample, please contact our sales team through the website or via direct inquiry, providing your specific requirements.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis