3,5-Dichloro-4-pyridinol
3,5-二氯-4-羟基吡啶
Also known as: 3,5-Dichloro-4(1H)-pyridinone, 3,5-Dichloropyridin-4-ol, 3,5-Dichloro-4-pyridone, 3,5-Dichloro-1,4-dihydropyridin-4-one, 4-Pyridinol, 3,5-dichloro-, 4(1H)-Pyridinone, 3,5-dichloro-
3,5-Dichloro-4-pyridinol (CAS 17228-70-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3Cl2NO and a molecular weight of 163.989 g/mol. It is also known as 3,5-Dichloro-4(1H)-pyridinone, 3,5-Dichloropyridin-4-ol and 3,5-Dichloro-4-pyridone. Key properties include a melting point of 56-59 °C(lit.), a boiling point of 317.5±37.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 145.8±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 17228-70-5
- Jingsj CID
- J-35334-8
- Molecular Formula
- C5H3Cl2NO
- Chinese Name
- 3,5-二氯-4-羟基吡啶
- Molecular Weight
- 163.989 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 56-59 °C(lit.) |
|---|---|
| Boiling Point | 317.5±37.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 145.8±26.5 °C |
| Exact Mass | 162.959167 |
| PSA | 33.12000 |
| LogP | 0.32 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.602 |
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 3,5-Dichloro-4-pyridinol?
The CAS number of 3,5-Dichloro-4-pyridinol is 17228-70-5.
What are the molecular formula and molecular weight of 3,5-Dichloro-4-pyridinol?
3,5-Dichloro-4-pyridinol has molecular formula C5H3Cl2NO and molecular weight 163.989 g/mol.
What are the upstream and downstream products of 3,5-Dichloro-4-pyridinol?
For 3,5-Dichloro-4-pyridinol, Upstream Products: 4(1H)-Pyridinone; Downstream Products: 3,5-Dichloro-4-oxo-1(4H)-pyridineacetic acid.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,5-Dichloro-4-pyridinol (CAS 17228-70-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35334-8 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.