Azelastine
氮卓斯汀
Also known as: Azelastine, 4-(4-Chlorobenzyl)-2-(1-methylazepan-4-yl)phthalazin-1(2H)-one, 4-(p-Chlorobenzyl)-2-(N-methylperhydroazepin-4-yl)-1(2H)-phthalazinone, 4-(p-Chlorobenzyl)-2-(hexahydro-1-methyl-1H-azepin-4-yl)-1(2H)-phthalazinone, Allergodil, Rhinolast, Optilast, Astelin, UNII:ZQI909440X
Azelastine (CAS 58581-89-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C22H24ClN3O and a molecular weight of 381.898 g/mol. It is also known as 4-(4-Chlorobenzyl)-2-(1-methylazepan-4-yl)phthalazin-1(2H)-one, 4-(p-Chlorobenzyl)-2-(N-methylperhydroazepin-4-yl)-1(2H)-phthalazinone and 4-(p-Chlorobenzyl)-2-(hexahydro-1-methyl-1H-azepin-4-yl)-1(2H)-phthalazinone. Key properties include a boiling point of 533.9±60.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 276.7±32.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 58581-89-8
- Jingsj CID
- J-47522-0
- Molecular Formula
- C22H24ClN3O
- Chinese Name
- 氮卓斯汀
- Molecular Weight
- 381.898 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 533.9±60.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 276.7±32.9 °C |
Frequently Asked Questions
What is the CAS number of Azelastine?
The CAS number of Azelastine is 58581-89-8.
What are the molecular formula and molecular weight of Azelastine?
Azelastine has molecular formula C22H24ClN3O and molecular weight 381.898 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Azelastine (CAS 58581-89-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47522-0 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.