2,4-Diaminopyrimidine 3-oxide
Also known as: Aminexil, Kopexil, 2,4-Pyrimidinediamine 3-oxide, 2,4-Diaminopyrimidine 3-N-oxide, Pyrimidine-2,4-diamine 3-oxide
2,4-Diaminopyrimidine 3-oxide (CAS 74638-76-9) 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 126.117 g/mol. Key properties include a boiling point of 475.5±37.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 241.4±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 74638-76-9
- Jingsj CID
- J-933343-5
- Molecular Formula
- C4H6N4O
- Molecular Weight
- 126.117 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 475.5±37.0 °C at 760 mmHg |
|---|---|
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 241.4±26.5 °C |
| Exact Mass | 126.054161 |
| PSA | 90.39000 |
| LogP | -1.17 |
| Vapor Pressure | 0.0±1.2 mmHg at 25°C |
| Refractive Index | 1.742 |
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-Diaminopyrimidine 3-oxide?
The CAS number of 2,4-Diaminopyrimidine 3-oxide is 74638-76-9.
What are the molecular formula and molecular weight of 2,4-Diaminopyrimidine 3-oxide?
2,4-Diaminopyrimidine 3-oxide has molecular formula C4H6N4O and molecular weight 126.117 g/mol.
What are the upstream and downstream products of 2,4-Diaminopyrimidine 3-oxide?
For 2,4-Diaminopyrimidine 3-oxide, Upstream Products: 6-Chloropyrimidine-2,4-diamine, 2,4-Diaminopyrimidine.
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-Diaminopyrimidine 3-oxide (CAS 74638-76-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-933343-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.