Nortriptyline hydrochloride

≥98% (TLC), powder

Desmethylamitriptyline hydrochloride, 3-(10,11-Dihydro-5H-dibenzo[a,d]cyclohepten-5-ylidene)-N-methyl-1-propanamine hydrochloride
Empirical Formula (Hill Notation):
C19H21N · HCl
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level


≥98% (TLC)




white to off-white


ethanol: 100 mg/mL
H2O: soluble


Eli Lilly

SMILES string




InChI key


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Biochem/physiol Actions

Tricyclic antidepressant that is a more potent inhibitor of the norepinephrine transporter (Ki = 3.4 nM) than the serotonin transporter (Ki = 161 nM). 5-HT2 serotonin receptor antagonist.

Features and Benefits

This compound is also offered as part of Sigma′s Library of Pharmacologically Active Compounds (LOPAC®1280), a biologically annotated collection of high-quality, ready-to-screen compounds. Click here to learn more.
This compound is featured on the Biogenic Amine Transporters page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.
This compound was developed by Eli Lilly. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

Legal Information

LOPAC is a registered trademark of Sigma-Aldrich Co. LLC


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Hazard Statements

Precautionary Statements


Acute Tox. 4 Oral


13 - Non Combustible Solids

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Robert A Power et al.
Journal of psychiatric research, 46(10), 1333-1338 (2012-07-10)
Most comparisons of the efficacy of antidepressants have relied on the assumption that missing data are randomly distributed. Dropout rates differ between drugs, suggesting this assumption may not hold true. This paper examines the effect of non-random dropout on a...
Abdennasser Bardai et al.
European heart journal, 34(20), 1506-1516 (2013-02-22)
Non-cardiac drugs that impair cardiac repolarization (electrocardiographic QT prolongation) are associated with an increased sudden cardiac arrest (SCA) risk. Emerging evidence suggests that non-cardiac drugs that impair cardiac depolarization and excitability (electrocardiographic QRS prolongation) also increase the risk for SCA....
Lindsay F Stead et al.
The Cochrane database of systematic reviews, 12, CD009670-CD009670 (2012-12-14)
Effective pharmacotherapies are available to help people who are trying to stop smoking, but quitting can still be difficult and providing higher levels of behavioural support may increase success rates further. To evaluate the effect of increasing the intensity of...
Aravind Penmatsa et al.
Nature, 503(7474), 85-90 (2013-09-17)
Antidepressants targeting Na(+)/Cl(-)-coupled neurotransmitter uptake define a key therapeutic strategy to treat clinical depression and neuropathic pain. However, identifying the molecular interactions that underlie the pharmacological activity of these transport inhibitors, and thus the mechanism by which the inhibitors lead...
SSRIs: a premature burial.
K Jensen
Clinical pharmacology and therapeutics, 93(3), 234-235 (2012-12-20)

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