2,4-Diamino-6-hydroxypyrimidine
Also known as: 2,4-Diamino-6-pyrimidinone, 2,6-Diaminopyrimidin-4(1H)-one, 2,6-Diaminopyrimidin-4-one, 2,6-diamino-4-hydroxy-pyrimidine, 2,6-diaminopyrimidin-4(3H)-one, 2,6-diaminopyrimidin-4-ol, 4-Pyrimidinol, 2,6-diamino-, 6-Aminoisocytosine, 6-Hydroxy-2,4-pyrimidinediamine, 6-hydroxy-2,4-diaminopyrimidine, AURORA KA-376, DAHP, 2,4-diaminohypoxanthine
2,4-Diamino-6-hydroxypyrimidine (CAS 56-06-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H6N4O and a molecular weight of 126.12 g/mol. Key properties include a melting point of 285-286 °C (dec.)(lit.), a boiling point of 524.0±53.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 270.7±30.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 56-06-4
- Jingsj CID
- J-1991361-2
- Molecular Formula
- C4H6N4O
- Molecular Weight
- 126.12 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 285-286 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 524.0±53.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 270.7±30.9 °C |
| Exact Mass | 126.054161 |
| PSA | 98.05000 |
| LogP | -1.29 |
| Vapor Pressure | 0.0±1.4 mmHg at 25°C |
| Refractive Index | 1.770 |
Activity & Biological Data
| Target | GTP cyclohydrolase I[1] |
|---|---|
| Additional Information | [1]. Sung YJ, et al. 2,4-Diamino-6-hydroxypyrimidine, an inhibitor of GTP cyclohydrolase I, suppresses nitric oxide production by chicken macrophages. Int J Immunopharmacol. 1994 Feb;16(2):101-8. |
Customs & Trade Information
| HS Code | 2933599090 |
|---|---|
| Summary | 2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 2,4-Diamino-6-hydroxypyrimidine?
The CAS number of 2,4-Diamino-6-hydroxypyrimidine is 56-06-4.
What are the molecular formula and molecular weight of 2,4-Diamino-6-hydroxypyrimidine?
2,4-Diamino-6-hydroxypyrimidine has molecular formula C4H6N4O and molecular weight 126.12 g/mol.
What are the upstream and downstream products of 2,4-Diamino-6-hydroxypyrimidine?
For 2,4-Diamino-6-hydroxypyrimidine, Upstream Products: 2,4-diamino-6-fluoropyrimidine; Downstream Products: 2,4,6-Trichloropyrimidine, 2-Amino-4-hydroxypyrrolo[2,3-d]pyrimidine, 2-Amino-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,4-Diamino-6-hydroxypyrimidine (CAS 56-06-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991361-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.