- C
- N
- O
Calculated reference model · not an experimental or batch-certified structure. All 27 atoms shown.
Model data & sources
- The product is supplied as the phosphate salt. Only the NSI-189 free base is drawn; the phosphoric acid is not shown.
- Heavy atoms only; hydrogens are omitted from the reference display.
- Source-defined stereochemistry is checked against the calculated coordinates; no energy-minimum, crystal or solution-structure claim is made.
- Reference molecular species only; batch identity, purity, counterions and excipients are not certified.
- Formula
- C22H30N4O
- Method
- RDKit ETKDGv3 / MMFF94s calculated reference conformer
- Batch
- KC-NSI-03
NSI-189 Phosphate
NootropicsPublished formats
- Dry-Fill Capsule 60ct/20mg/1.2g
- Powder 5g
What is the difference between these?
- Dry-Fill Capsule
- Capsules filled with the weighed solid. The label gives the amount in each capsule and the number in the bottle.
- Powder
- Raw material as a solid. Nothing added and nothing portioned; the stated weight is what is in the container.
Supplementary product details from the published catalog, checked 2026-10-07. These reference details do not establish current availability.
Pricing
Pricing and order placement are reserved for reviewed research accounts. Log in or submit an account application to view current product pricing.
Technical Specifications
Batch COA Database ↗Identity fields from the published product record, checked 2026-10-07. Reference information is not a batch identity certificate.
Research Overview
NSI-189 Phosphate (Neural Growth Research Standard)
NSI-189 Phosphate is a synthetic benzylpiperazine-aminopyridine derivative developed to investigate neurogenic processes and structural synaptic changes within the central nervous system. The compound is supplied as the phosphate salt; salt forms of basic amines are generally more water-soluble than the corresponding free base. It is widely employed as a specialized research tool to map the mechanisms of hippocampal neurogenesis, synaptic density modulation, and the stimulation of neural connectivity in controlled cell-based models.
Physical & Handling Properties
| Property | Specification |
|---|---|
| Physical Appearance | Fine white to off-white/beige powder |
Mechanism of Action & Research Context
NSI-189 Phosphate is studied primarily for its potential to stimulate neural cell proliferation and differentiation, particularly within hippocampal tissue models.
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Neurogenic Signaling: Research focuses on its ability to promote the formation of new neurons, tracking neurogenesis via specific biomarkers.
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Synaptic Density Modulation: Investigators utilize the compound to measure changes in synaptic markers, providing insights into the preservation and enhancement of neural connectivity.
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Hippocampal Activation: By applying NSI-189 in in vitro hippocampal tissue models, researchers can examine the up-regulation of signaling pathways associated with long-term potentiation and structural neuroplasticity.
Research Applications
NSI-189 Phosphate is a focused reference standard for studies exploring neurogenesis and neural repair mechanisms.
Primary fields of in vitro laboratory investigation include:
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Neurogenesis Mapping: Tracking new cell formation and differentiation trajectories in hippocampal tissue cultures.
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Synaptic Density Assessment: Measuring shifts in pre- and post-synaptic protein expression in neural models.
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Cellular Marker Analysis: Examining the biochemical signaling cascades induced by NSI-189 in cell-based assays.
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Neural Connectivity Research: Observing the morphological changes and axonal growth patterns of neurons in controlled laboratory environments.
Storage & Handling Guidelines
Store at controlled room temperature. Keep tightly closed.
Storage guidance is a house recommendation. Analytical documentation is per-lot release testing.
References
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Fava M, et al. (2016) A Phase 1B, Randomized, Double-Blind, Placebo-Controlled, Multiple-Dose Escalation Study of NSI-189 Phosphate in Patients With Major Depressive Disorder. Molecular Psychiatry. 21(10): 1372–1380.
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Bansal M, et al. (2016) NSI-189, a novel neurogenic compound, prevents cognitive deficit in a rat model of depression. Journal of Neurochemistry. 136(S1): 410.
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Tajiri N, et al. (2014) NSI-189, a novel neurogenic compound, promotes hippocampal neurogenesis and improves cognitive function in mice. CNS Neuroscience & Therapeutics. 20(8): 777–783.
Related Research Compounds
Research Use Disclaimer
Research Use Only Disclaimer: This product is labeled and sold "For Research Use Only - NOT FOR HUMAN CONSUMPTION." It is not a drug, dietary supplement, food, cosmetic, or medical device, and it is not approved by the FDA or any other regulator for human or veterinary use. It is supplied to approved account holders as a research chemical for laboratory use and must be handled in accordance with applicable law.
Certificates of Analysis
- Batch KC-NSI-03 3 reports
Currently shipping from batch KC-NSI-03.

Compounds That Survive Scrutiny
Research use only. Not for human or veterinary use.