Levocetirizine

左西替利嗪

Also known as: (-)-Cetirizine, (R)-Cetirizine, 2-[2-[4-[(R)-(4-chlorophenyl)-phenylmethyl]-1-piperazinyl]ethoxy]acetic acid, (2-{4-[(R)-(4-Chlorophenyl)(phenyl)methyl]piperazin-1-yl}ethoxy)acetic acid, Alerlisin, Levocetirizine [INN], levocetirizinum, Xusal, Cetirizine Impurity 20

Levocetirizine (CAS 130018-77-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C21H25ClN2O3 and a molecular weight of 388.888 g/mol. It is also known as (-)-Cetirizine, (R)-Cetirizine and 2-[2-[4-[(R)-(4-chlorophenyl)-phenylmethyl]-1-piperazinyl]ethoxy]acetic acid. Key properties include a melting point of 205-208°C (dec.), a boiling point of 542.1±45.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 281.6±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
130018-77-8
Jingsj CID
J-1982074-1
Molecular Formula
C21H25ClN2O3
Chinese Name
左西替利嗪
Molecular Weight
388.888 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point205-208°C (dec.)
Boiling Point542.1±45.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point281.6±28.7 °C

Frequently Asked Questions

What is the CAS number of Levocetirizine?

The CAS number of Levocetirizine is 130018-77-8.

What are the molecular formula and molecular weight of Levocetirizine?

Levocetirizine has molecular formula C21H25ClN2O3 and molecular weight 388.888 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Levocetirizine (CAS 130018-77-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1982074-1 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.