Pyridine-3,5-diol
Also known as: 3,5-Dihydroxypyridine, 3,5-Pyridinediol, 3,5-Dihydroxypyridin, dihydroxy-3,5 pyridine, Pyridin-3,5-diol, EINECS 222-585-3
Pyridine-3,5-diol (CAS 3543-02-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5NO2 and a molecular weight of 111.099 g/mol. Key properties include a melting point of 240℃, a boiling point of 441.4±25.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 220.8±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3543-02-0
- Jingsj CID
- J-1519373-4
- Molecular Formula
- C5H5NO2
- Molecular Weight
- 111.099 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 240℃ |
|---|---|
| Boiling Point | 441.4±25.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 220.8±23.2 °C |
| Exact Mass | 111.032028 |
| PSA | 53.35000 |
| LogP | 0.57 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.625 |
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 Pyridine-3,5-diol?
The CAS number of Pyridine-3,5-diol is 3543-02-0.
What are the molecular formula and molecular weight of Pyridine-3,5-diol?
Pyridine-3,5-diol has molecular formula C5H5NO2 and molecular weight 111.099 g/mol.
What are the upstream and downstream products of Pyridine-3,5-diol?
For Pyridine-3,5-diol, Upstream Products: 3,5-Diethoxypyridine, 3,5-Dibromopyridine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Pyridine-3,5-diol (CAS 3543-02-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1519373-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.