3,4-Diamino-2-hydroxypyridine
Also known as: 3,4-Diaminopyridin-2-ol, 3,4-Diamino-2-pyridinol, 3,4-Diaminopyridin-2(1H)-one, 2(1H)-Pyridinone,3,4-diamino-, 3,4-Diamino-1H-pyridin-2-one
3,4-Diamino-2-hydroxypyridine (CAS 33631-02-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H7N3O and a molecular weight of 125.12900 g/mol. Key properties include a boiling point of 545.7ºC at 760mmHg, a density of 1.46g/cm3 and a flash point of 283.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 33631-02-6
- Jingsj CID
- J-1515937-2
- Molecular Formula
- C5H7N3O
- Molecular Weight
- 125.12900 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 545.7ºC at 760mmHg |
|---|---|
| Density | 1.46g/cm3 |
| Flash Point | 283.8ºC |
| Exact Mass | 125.05900 |
| PSA | 85.16000 |
| LogP | 1.11400 |
| Refractive Index | 1.493 |
Customs & Trade Information
| HS Code | 2933399090 |
|---|---|
| Summary | 2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) 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 3,4-Diamino-2-hydroxypyridine?
The CAS number of 3,4-Diamino-2-hydroxypyridine is 33631-02-6.
What are the molecular formula and molecular weight of 3,4-Diamino-2-hydroxypyridine?
3,4-Diamino-2-hydroxypyridine has molecular formula C5H7N3O and molecular weight 125.12900 g/mol.
What are the upstream and downstream products of 3,4-Diamino-2-hydroxypyridine?
For 3,4-Diamino-2-hydroxypyridine, Upstream Products: 4-Amino-2-hydroxy-3-nitropyridine, 4-Amino-3-nitropyridine, 1H-Imidazo[4,5-c]pyridin-4-ol; Downstream Products: 1H-Imidazo[4,5-c]pyridin-4-ol, 5-Azabenzimidazole, 4-Chloro-1H-imidazo[4,5-c]pyridine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-Diamino-2-hydroxypyridine (CAS 33631-02-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1515937-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.