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Meclizine dihydrochloride

Also known as: Meclizine hydrochloride, Meclozine dihydrochloride, Meclozine hydrochloride, 1-[(4-Chlorophenyl)(phenyl)methyl]-4-(3-methylbenzyl)piperazine dihydrochloride, 1-(p-Chloro-α-phenylbenzyl)-4-(m-methylbenzyl)piperazine dihydrochloride, Ancolan dihydrochloride, Bonamine, Diadril, Navidoxine, Postafen, Postafene dihydrochloride, Piperazine, 1-[(4-chlorophenyl)phenylmethyl]-4-[(3-methylphenyl)methyl]-, dihydrochloride, NSC 28728

Meclizine dihydrochloride (CAS 1104-22-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C25H29Cl3N2 and a molecular weight of 463.870 g/mol. Key properties include a melting point of 212 °C, a boiling point of 495.3ºC at 760mmHg, a density of 1.159g/cm3 and a flash point of 253.3ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H361 — Suspected of damaging fertility or the unborn child. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1104-22-9
Jingsj CID
J-37934-0
Molecular Formula
C25H29Cl3N2
Molecular Weight
463.870 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point212 °C
Boiling Point495.3ºC at 760mmHg
Density1.159g/cm3
Flash Point253.3ºC
Exact Mass462.139618
PSA6.48000
LogP7.03540
Vapor Pressure6E-10mmHg at 25°C

GHS Safety & Compliance

Irritant / Health HazardSignal word: Warning
  • H302 — Harmful if swallowed
  • H361 — Suspected of damaging fertility or the unborn child

Activity & Biological Data

Additional Information[1]. King, C.T., S.A. Weaver, and S.A. Narrod, Antihistamines and Teratogenicity in the Rat. J Pharmacol Exp Ther, 1965. 147: p. 391-8. [2]. Huang, W., et al., Meclizine is an agonist ligand for mouse constitutive androstane receptor (CAR) and an inverse agonist for human CAR. Mol Endocrinol, 2004. 18(10): p. 2402-8.

Customs & Trade Information

HS Code2933499090
Summary2933499090. other compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused. 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 Meclizine dihydrochloride?

The CAS number of Meclizine dihydrochloride is 1104-22-9.

What are the molecular formula and molecular weight of Meclizine dihydrochloride?

Meclizine dihydrochloride has molecular formula C25H29Cl3N2 and molecular weight 463.870 g/mol.

Is Meclizine dihydrochloride hazardous?

Meclizine dihydrochloride has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H361 — Suspected of damaging fertility or the unborn child.

What are the upstream and downstream products of Meclizine dihydrochloride?

For Meclizine dihydrochloride, Upstream Products: 3-Methylbenzyl chloride, 1-[(4-Chlorophenyl)(phenyl)methyl]piperazine.

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

Last updated:

How to cite: Jingsj. "Meclizine dihydrochloride (CAS 1104-22-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37934-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.