Date published: 2025-11-1

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Amitriptyline Hydrochloride (CAS 549-18-8)

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Alternate Names:
3-(10,11-Dihydro-5H-dibenzo[a,d]cyclohepten-5-ylidene)-N,N-dimethyl-1-propanamine Hydrochloride
Application:
Amitriptyline Hydrochloride is an antidepressant with anticholinergic and sedative properties
CAS Number:
549-18-8
Molecular Weight:
313.86
Molecular Formula:
C20H24ClN
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Amitriptyline Hydrochloride is an amphiphilic tricyclic compound. It prevents the re-uptake of norepinephrine and serotonin at nerve terminals, thus potentiating the action of these neurotransmitters. Amitriptyline antagonizes cholinergic and alpha-1 adrenergic responses to bioactive amines. Amitriptyline Hydrochloride exhibits micellization and phase separation behavior in the presence of ionic and nonionic hydrotropes. Amitriptyline Hydrochloride and Hemoglobin interact through a static quenching mechanism. Its binding to Hemoglobin is spontaneous. The process involves hydrogen bonding and van der Waals interactions and occurs with a single binding site. Amitriptyline Hydrochloride, with a pKa of 9.4, primarily exists in its protonated form. Amitriptyline Hydrochloride has also been found to have antimicrobial activity.


Amitriptyline Hydrochloride (CAS 549-18-8) References

  1. Aqueous amphiphilic drug (amitriptyline hydrochloride)-bile salt mixtures at different temperatures.  |  Kabir-ud-Din, ., et al. 2011. Colloids Surf B Biointerfaces. 84: 285-91. PMID: 21349692
  2. Chemical stability of amitriptyline hydrochloride in oral liquid dosage forms.  |  Gupta, VD. 2009. Int J Pharm Compd. 11: 445-6. PMID: 23966529
  3. An Investigation on in vitro and in vivo Antimicrobial Properties of the Antidepressant: Amitriptyline Hydrochloride.  |  Mandal, A., et al. 2010. Braz J Microbiol. 41: 635-45. PMID: 24031539
  4. Hydrogen bonding-assisted interaction between amitriptyline hydrochloride and hemoglobin: spectroscopic and molecular dynamics studies.  |  Maurya, N., et al. 2017. J Biomol Struct Dyn. 35: 1367-1380. PMID: 27141981
  5. Stability of Allopurinol, Amitriptyline Hydrochloride, Carbamazepine, Domperidone, Isoniazid, Ketoconazole, Lisinopril, Naproxen, Paracetamol (Acetaminophen), and Sertraline Hydrochloride in SyrSpend SF PH4 Oral Suspensions.  |  Polonini, HC., et al. 2016. Int J Pharm Compd. 20: 426-434. PMID: 28339378
  6. Preparation and characterization of nano amitriptyline hydrochloride particles by spray freeze drying.  |  Hu, Y., et al. 2019. Nanomedicine (Lond). 14: 1521-1531. PMID: 31180256
  7. Investigation of micellar and interfacial phenomenon of amitriptyline hydrochloride with cationic ester-bonded gemini surfactant mixture in different solvent media.  |  Abdul Rub, M. 2020. PLoS One. 15: e0241300. PMID: 33156844
  8. Modulation of nociception by amitriptyline hydrochloride in the Speke's hinge-back tortoise (Kiniskys spekii).  |  Makau, CM., et al. 2021. Vet Med Sci. 7: 1034-1041. PMID: 33559977
  9. Dermal delivery of amitriptyline for topical analgesia.  |  Kung, CP., et al. 2022. Drug Deliv Transl Res. 12: 805-815. PMID: 33886076
  10. Stability-indicating liquid chromatography method development for assay and impurity profiling of amitriptyline hydrochloride in tablet dosage form and forced degradation study.  |  Boppy, NVVDP., et al. 2022. Biomed Chromatogr. 36: e5436. PMID: 35766584
  11. Physicochemical and Microbiological Stability of Amitriptyline Hydrochloride Oral Liquid Dosage Forms in PCCA Base, SuspendIt.  |  Pramar, YV., et al. 2022. Int J Pharm Compd. 26: 342-351. PMID: 35820140
  12. Stability of amitriptyline hydrochloride in a commercial aqueous solution.  |  Roman, R., et al. 1979. J Pharm Sci. 68: 1329-30. PMID: 512874
  13. Scalp dysesthesia.  |  Hoss, D. and Segal, S. 1998. Arch Dermatol. 134: 327-30. PMID: 9521031

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Amitriptyline Hydrochloride, 1 g

sc-210801
1 g
$196.00