Mianserin hydrochloride
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MedKoo CAT#: 319529

CAS#: 21535-47-7 (HCl)

Description: Mianserin hydrochloride is a tetracyclic compound with antidepressant effects. It may cause drowsiness and hematological problems. Its mechanism of therapeutic action is not well understood, although it apparently blocks alpha-adrenergic, histamine H1, and some types of serotonin receptors.


Chemical Structure

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Mianserin hydrochloride
CAS# 21535-47-7 (HCl)

Theoretical Analysis

MedKoo Cat#: 319529
Name: Mianserin hydrochloride
CAS#: 21535-47-7 (HCl)
Chemical Formula: C18H21ClN2
Exact Mass:
Molecular Weight: 300.83
Elemental Analysis: C, 71.87; H, 7.04; Cl, 11.78; N, 9.31

Price and Availability

Size Price Availability Quantity
5.0g USD 150.0 2 Weeks
10.0g USD 250.0 2 Weeks
20.0g USD 450.0 2 Weeks
50.0g USD 850.0 2 Weeks
100.0g USD 1450.0 2 Weeks
500.0g USD 3650.0 2 Weeks
1.0kg USD 4650.0 2 Weeks
2.0kg USD 7950.0 2 Weeks
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Related CAS #: 24219-97-4 (free base)   21535-47-7 (HCl)   51152-88-6 ((S)-isomer)    

Synonym: Mianserin hydrochloride; Tolvon; Tolvin; ORG GB 94; Lerivon; Mianserine hydrochloride

IUPAC/Chemical Name: 2-methyl-1,2,3,4,10,14b-hexahydrodibenzo[c,f]pyrazino[1,2-a]azepine hydrochloride

InChi Key: YNPFMWCWRVTGKJ-UHFFFAOYSA-N

InChi Code: InChI=1S/C18H20N2.ClH/c1-19-10-11-20-17-9-5-3-7-15(17)12-14-6-2-4-8-16(14)18(20)13-19;/h2-9,18H,10-13H2,1H3;1H

SMILES Code: CN1CCN2C(C1)C3=CC=CC=C3CC4=CC=CC=C42.Cl

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO, not in water

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 300.83 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Haine SE, Miljoen HP, Blankoff I, Vrints CJ. Mianserin and ventricular tachycardia: case report and review of the literature. Cardiology. 2006;106(4):195-8. Epub 2006 May 3. Review. PubMed PMID: 16675906.

2: Rotzinger S, Bourin M, Akimoto Y, Coutts RT, Baker GB. Metabolism of some "second"- and "fourth"-generation antidepressants: iprindole, viloxazine, bupropion, mianserin, maprotiline, trazodone, nefazodone, and venlafaxine. Cell Mol Neurobiol. 1999 Aug;19(4):427-42. Review. PubMed PMID: 10379419.

3: Poyurovsky M, Schneidman M, Weizman A. Successful treatment of fluoxetine-induced dystonia with low-dose mianserin. Mov Disord. 1997 Nov;12(6):1102-5. Review. PubMed PMID: 9399252.

4: Leinonen E, Koponen H, Lepola U. Serum mianserin and ageing. Prog Neuropsychopharmacol Biol Psychiatry. 1994 Sep;18(5):833-45. Review. PubMed PMID: 7972855.

5: Demling J. [Mianserin: pharmacology and clinical aspects of an effective antidepressive agents]. Fortschr Med. 1993 Nov 10;111(31):497-500. Review. German. PubMed PMID: 8276338.

6: Tiraboschi P. [Mianserin]. Medicina (Firenze). 1988 Jul-Sep;8(3):351-3. Review. Italian. PubMed PMID: 3068469.

7: Mianserin 10 years on. Drug Ther Bull. 1988 Mar 7;26(5):17-8. Review. PubMed PMID: 3286177.

8: Boschmans SA, Perkin MF, Terblanche SE. Antidepressant drugs: imipramine, mianserin and trazodone. Comp Biochem Physiol C. 1987;86(2):225-32. Review. PubMed PMID: 2882911.

9: Chaplin S. Bone marrow depression due to mianserin, phenylbutazone, oxyphenbutazone, and chloramphenicol--Part II. Adverse Drug React Acute Poisoning Rev. 1986 Autumn;5(3):181-96. Review. PubMed PMID: 3538824.

10: Chaplin S. Bone marrow depression due to mianserin, phenylbutazone, oxyphenbutazone, and chloramphenicol--Part I. Adverse Drug React Acute Poisoning Rev. 1986 Summer;5(2):97-136. Review. Erratum in: Adverse Drug React Acute Poisoning Rev 1986 Winter;5(4):233. PubMed PMID: 3529881.

11: Lingjaerde O. From clomipramine to mianserin: therapeutic relevance of interactions with serotonin uptake and storage, as studied in the blood platelet model. Acta Psychiatr Scand Suppl. 1985;320:10-9. Review. PubMed PMID: 3901671.

12: Pinder RM. Adrenoreceptor interactions of the enantiomers and metabolites of mianserin: are they responsible for the antidepressant effect? Acta Psychiatr Scand Suppl. 1985;320:1-9. Review. PubMed PMID: 2996305.

13: Wakeling A. Efficacy and side effects of mianserin, a tetracyclic antidepressant. Postgrad Med J. 1983 Apr;59(690):229-31. Review. PubMed PMID: 6346303; PubMed Central PMCID: PMC2417496.

14: De Ridder JJ. Mianserin: result of a decade of antidepressant research. Pharm Weekbl Sci. 1982 Oct 22;4(5):139-45. Review. PubMed PMID: 6128715.

15: Pinder RM, Fink M. Mianserin. Mod Probl Pharmacopsychiatry. 1982;18:70-101. Review. PubMed PMID: 7048075.

16: Cassano GB, Conti L, Dell'Osso L, Massimetti G. Four new atypical antidepressants (trazodone, mianserin, nomifensine, caroxazone): results of controlled trials. Adv Biochem Psychopharmacol. 1982;32:125-39. Review. PubMed PMID: 7046361.

17: Leonard BE. On the mode of action of mianserin. Adv Biochem Psychopharmacol. 1982;31:301-19. Review. PubMed PMID: 6282060.

18: Montgomery SA. Maprotiline, nomifensine, mianserin, zimelidine: a review of antidepressant efficacy in in-patients. Neuropharmacology. 1980 Dec;19(12):1185-90. Review. PubMed PMID: 6449677.

19: Brogden RN, Heel RC, Speight TM, Avery GS. Mianserin: a review of its pharmacological properties and therapeutic efficacy in depressive illness. Drugs. 1978 Oct;16(4):273-301. Review. PubMed PMID: 359311.