-25% on everything – until October 31Free shipping on orders of $99 or more
Nexaph Peptides

Product Usage: This product is intended for research purposes only.

All product information available on this website is for educational purposes only. Any form of bodily introduction into humans or animals is strictly prohibited by law. This product should only be handled by licensed and qualified professionals. It is not a drug, food, or cosmetic, and must not be misbranded, misused, or mislabeled as such.

NSI-189 Free Base – Powder, 1 gram

NSI-189 free base is a synthetic benzylpiperazine-aminopyridine derivative investigated for its effects on neural progenitor cell proliferation and neurogenesis-associated pathways.

Quantity
Original price was: $22.99.Current price is: $17.24.
Same Trusted Formula. Fresh New Look.

During our packaging transition, you may receive products with either our previous or updated label. Rest assured, the formulation, purity and quality remain exactly the same as per our standards.

Accepted Payment Methods
  • Credit card
  • Bank transfer (instant SEPA)
  • Bank transfer (ACH)
  • Wise
  • Revolut
  • Zelle
  • Remitly
  • Western Union
  • Chime
  • Others

-25% on everything – until October 31
25% off regular prices, replacing other product sales. Only the crypto payment discount can be combined.

Shipping

Same-day shipping on USA orders placed before 12PM EST.

View Shipping Policy →
Returns

30-day hassle-free returns on unopened products.

View Returns Policy →
Lab Tested

Every batch is tested for purity, potency and quality.

View Lab Results →
Support

Have a question? Chat with us on Telegram.

Open the chat →

NSI-189 free base is a synthetic benzylpiperazine-aminopyridine derivative investigated for its effects on neural progenitor cell proliferation and neurogenesis-associated pathways. Research has focused on progenitor cell expansion, neuronal differentiation markers, and intracellular signalling mechanisms distinct from classical monoaminergic compounds.

Applications include neural progenitor proliferation assays, neurogenesis biomarker studies, and structure-activity relationship (SAR) research. The free-base powder format supports flexible stock-solution preparation and precise concentration-response studies.

  • High Purity – 99% Purity Guaranteed
  • Independently Lab Tested
  • Research Grade Quality
  • For Laboratory Research Use Only

3D Molecular Structure

Drag to rotate · scroll to zoom
Loading 3D structure…
Chemical Formula C22H30N4O
Synonyms 270138-41-4 UNII-HX0VO60T62 HX0VO60T62
Molar Mass 366.5 g/mol
CAS Number 1270138-40-3
PubChem CID 50922681
Total Compound Content 1 gram
Shelf Life 36 months
NSI-189 free base is studied for its activity in neural progenitor cell models, where in vitro assays have reported increased progenitor cell proliferation and modulation of neuronal differentiation markers following compound exposure. Experimental studies commonly utilize biomarkers such as doublecortin (DCX) and Ki-67 to characterize neurogenesis-associated activity and cellular turnover. Unlike classical monoaminergic pathway modulators, NSI-189 is investigated for its effects on intracellular signalling pathways associated with progenitor cell growth and survival. The free-base format is useful in research protocols where salt-form counter-ions are not desired in final solution preparation. Independently third-party HPLC-tested; COA available per batch.

Every batch is independently lab tested for identity, purity and potency. View our lab testing program →

How does the free-base format differ from the phosphate salt in solution preparation?

Free-base compounds do not contain the counter-ion present in salt forms, which can influence solubility, dissolution characteristics, and final solution pH. Selection between free-base and phosphate formats depends on the solvent system, assay requirements, and desired formulation conditions. When preparing solutions, molar concentration calculations should account for differences in molecular weight between the free base and salt forms.

What should be considered when comparing data generated using free-base versus phosphate formulations?

Comparisons should be normalized to the molar amount of the active compound rather than total mass, since salt forms contain additional molecular weight from the counter-ion. This approach allows direct comparison of concentration-response data across studies using different formulations of the same compound.

What solubility considerations apply to NSI-189 free base?

Free-base compounds may exhibit different aqueous solubility profiles than corresponding salt forms and can require co-solvents or adjusted solution conditions to achieve complete dissolution. Researchers should verify solubility at intended working concentrations and confirm the absence of precipitation before use in cell-based assays or preclinical research protocols.

Customer Reviews (7)

★★★★★ ★★★★★
5 / 5
5★
7
4★
0
3★
0
2★
0
1★
0
★★★★★ ★★★★★
Verified Buyer
Anonymous

Great product, customer service addressed my shipment issue immediately, and explained the process extremely well.

★★★★★ ★★★★★
Verified Buyer
Simon O.

Great service and very good quality. Thanks.

★★★★★ ★★★★★
Verified Buyer
Moore

Incredibly fast delivery, incredible quality. Thank you.

★★★★★ ★★★★★
Verified Buyer
Steven B.

Outstanding experience with the ordering process and purity exceeded my expectations. Our research results are completely exceeding expectations. Great value.

★★★★★ ★★★★★
Verified Buyer
CoreLab

Super happy with how fast it shipped. quality is stellar. Our research results are completely exceeding expectations. Will purchase again soon.