WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 522503

CAS#: 1240308-45-5

Description: A‑971432 is a potent, orally bioavailable, selective Sphingosine-1-Phosphate Receptor 5 (S1P5) agonist for the potential treatment of neurodegenerative disorders. A‑971432 is highly selective for S1P5 and has excellent plasma and CNS exposure after oral dosing in preclinical species. A‑971432 improves blood−brain barrier integrity in an in vitro model and reverses age-related cognitive decline in mice. S1P5 agonism is an innovative approach with potentialbenefit in neurodegenerative disorders involving lipid imbalance and/or compromised blood−brain barrier such as Alzheimer’s disease or multiple sclerosis.

Chemical Structure

CAS# 1240308-45-5

Theoretical Analysis

MedKoo Cat#: 522503
Name: A‑971432
CAS#: 1240308-45-5
Chemical Formula: C18H17Cl2NO3
Exact Mass: 365.05855
Molecular Weight: 366.238
Elemental Analysis: C, 59.03; H, 4.68; Cl, 19.36; N, 3.82; O, 13.11

Size Price Shipping out time Quantity
Inquire bulk and customized quantity

Pricing updated 2021-03-04. Prices are subject to change without notice.

A‑971432 is not in stock, may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to sales@medkoo.com to inquire quote.

Synonym: A‑971432; A 971432; A971432.

IUPAC/Chemical Name: 1-(4-((3,4-Dichlorobenzyl)oxy)benzyl)azetidine-3-carboxylic Acid


InChi Code: InChI=1S/C18H17Cl2NO3/c19-16-6-3-13(7-17(16)20)11-24-15-4-1-12(2-5-15)8-21-9-14(10-21)18(22)23/h1-7,14H,8-11H2,(H,22,23)

SMILES Code: O=C(C1CN(CC2=CC=C(OCC3=CC=C(Cl)C(Cl)=C3)C=C2)C1)O

Solid powder

>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).

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:

Handling Instructions:

Preparing Stock Solutions

The following data is based on the product molecular weight 366.238 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.

Select a batch to recalculate based on the batch molecular weight:
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

Molarity Calculator

Calculate the mass, volume, or concentration required for a solution.

*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Dilution Calculator

Calculate the dilution required to prepare a stock solution.

1: Hobson AD, Harris CM, van der Kam E, Turner SC, Abibi A, Aguirre AL, Bousquet P, Kebede T, Konopacki DB, Gintant G, Kim Y, Larson K, Maull J, Moore NS, Shi D, Shrestha A, Tang X, Zhang P, Sarris KK. Discovery of A-971432, an Orally Bioavailable Selective Sphingosine-1-Phosphate Receptor 5 (S1P5) Agonists for the Potential Treatment of Neurodegenerative Disorders. J Med Chem. 2015 Oct 28. [Epub ahead of print] PubMed PMID: 26509640.