2-(chloromethyl)-5-hydroxy-4H-pyran-4-one
Also known as: Chlorokojic acid, Kojic impurity 4, 4H-Pyran-4-one,2-(chloromethyl)-5-hydroxy-, 2-(chloromethyl)-5-hydroxypyran-4-one, NSC10216
2-(chloromethyl)-5-hydroxy-4H-pyran-4-one (CAS 7559-81-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H5ClO3 and a molecular weight of 160.55500 g/mol. Key properties include a melting point of 164-165ºC, a boiling point of 321.9ºC at 760 mmHg, a density of 1.514g/cm3 and a flash point of 148.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 7559-81-1
- Jingsj CID
- J-1002422-3
- Molecular Formula
- C6H5ClO3
- Molecular Weight
- 160.55500 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 164-165ºC |
|---|---|
| Boiling Point | 321.9ºC at 760 mmHg |
| Density | 1.514g/cm3 |
| Flash Point | 148.5ºC |
| Exact Mass | 159.99300 |
| PSA | 50.44000 |
| LogP | 1.08420 |
| Refractive Index | 1.576 |
Frequently Asked Questions
What is the CAS number of 2-(chloromethyl)-5-hydroxy-4H-pyran-4-one?
The CAS number of 2-(chloromethyl)-5-hydroxy-4H-pyran-4-one is 7559-81-1.
What are the molecular formula and molecular weight of 2-(chloromethyl)-5-hydroxy-4H-pyran-4-one?
2-(chloromethyl)-5-hydroxy-4H-pyran-4-one has molecular formula C6H5ClO3 and molecular weight 160.55500 g/mol.
What are the upstream and downstream products of 2-(chloromethyl)-5-hydroxy-4H-pyran-4-one?
For 2-(chloromethyl)-5-hydroxy-4H-pyran-4-one, Upstream Products: kojic acid, Thionyl chloride; Downstream Products: kojic acid, 3-(Benzyloxy)-6-methyl-4-oxo-4H-pyran-2-carboxylic acid.
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-(chloromethyl)-5-hydroxy-4H-pyran-4-one (CAS 7559-81-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1002422-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.