Amitriptyline Hydrochloride

盐酸阿米替林

Also known as: 3-(10,11-Dihydro-5H-dibenzo[a,d]cyclohepten-5-ylidene)-N,N-dimethyl-1-propanamine hydrochloride, 3-(10,11-Dihydro-5H-dibenzo[a,d][7]annulen-5-ylidene)-N,N-dimethyl-1-propanamine hydrochloride, 10,11-Dihydro-N,N-dimethyl-5H-dibenzo[a,d]cycloheptene-Δ5,γ-propylamine hydrochloride, 5-(3-Dimethylaminopropylidene)dibenzo[a,d][1,4]cycloheptadiene hydrochloride, Amitriptyline HCl

Amitriptyline Hydrochloride (CAS 549-18-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H24ClN and a molecular weight of 313.864 g/mol. It is also known as 3-(10,11-Dihydro-5H-dibenzo[a,d]cyclohepten-5-ylidene)-N,N-dimethyl-1-propanamine hydrochloride, 3-(10,11-Dihydro-5H-dibenzo[a,d][7]annulen-5-ylidene)-N,N-dimethyl-1-propanamine hydrochloride and 10,11-Dihydro-N,N-dimethyl-5H-dibenzo[a,d]cycloheptene-Δ5,γ-propylamine hydrochloride. Key properties include a melting point of 196-197°C, a boiling point of 398.2ºC at 760 mmHg, a density of 1.076g/cm3 and a flash point of 11 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
549-18-8
Jingsj CID
J-48480-4
Molecular Formula
C20H24ClN
Chinese Name
盐酸阿米替林
Molecular Weight
313.864 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point196-197°C
Boiling Point398.2ºC at 760 mmHg
Density1.076g/cm3
Flash Point11 °C

GHS Safety & Compliance

Flammable / Acute Toxicity / Health HazardSignal word: Danger

Frequently Asked Questions

What is the CAS number of Amitriptyline Hydrochloride?

The CAS number of Amitriptyline Hydrochloride is 549-18-8.

What are the molecular formula and molecular weight of Amitriptyline Hydrochloride?

Amitriptyline Hydrochloride has molecular formula C20H24ClN and molecular weight 313.864 g/mol.

Is Amitriptyline Hydrochloride hazardous?

Amitriptyline Hydrochloride has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "Amitriptyline Hydrochloride (CAS 549-18-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48480-4 (accessed 2026-10-22).

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