Desmethyl mirtazapine
Synonym(s):N-Demethylmirtazapine;1,2,3,4,10,14b-Hexahydropyrazino[2,1-a]pyrido[2,3-c][2]benzazepine;Desmethylmirtazapine
- CAS NO.:61337-68-6
- Empirical Formula: C16H17N3
- Molecular Weight: 251.33
- MDL number: MFCD09840377
- EINECS: 200-835-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:52:06
What is Desmethyl mirtazapine?
Chemical properties
White Solid
The Uses of Desmethyl mirtazapine
A metabolite of Mirtazapine, a2-Adrenergic blocker.
The Uses of Desmethyl mirtazapine
A metabolite of Mirtazapine, α2-adrenergic blocker.
Definition
ChEBI: N-demethylmirtazapine is a benzazepine metabolite resulting from demethylation of the antidpressant, mirtazapine. It has a role as a human xenobiotic metabolite, an alpha-adrenergic antagonist, an anxiolytic drug, a H1-receptor antagonist, a histamine antagonist and a serotonergic antagonist. It is a tetracyclic antidepressant and a benzazepine.
Properties of Desmethyl mirtazapine
| Melting point: | >195?C (dec.) |
| Boiling point: | 456.1±33.0 °C(Predicted) |
| Density | 1.24±0.1 g/cm3(Predicted) |
| Flash point: | 2℃ |
| storage temp. | -20°C |
| solubility | Methanol (Slightly), Water (Slightly) |
| pka | 9.00±0.20(Predicted) |
| form | neat |
| BRN | 3976057 |
Safety information for Desmethyl mirtazapine
| Signal word | Danger |
| Pictogram(s) |
![]() Flame Flammables GHS02 ![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H225:Flammable liquids H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P337+P313:IF eye irritation persists: Get medical advice/attention. P403+P235:Store in a well-ventilated place. Keep cool. |
Computed Descriptors for Desmethyl mirtazapine
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![(R)-1,2,3,4,10,14b-hexahydro-2-methylpyrazino[2,1-a]pyrido[2,3-c][2]benzazepine](https://img.chemicalbook.in/CAS/GIF/61364-37-2.gif)
![(S)-1,2,3,4,10,14b-hexahydro-2-methylpyrazino[2,1-a]pyrido[2,3-c][2]benzazepine](https://img.chemicalbook.in/CAS/GIF/61337-87-9.gif)

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