Shipping services continue despite COVID-19 outbreak ! Click here to view COVID-19 related products


For research use only.

Catalog No.S2906

1 publication

Ki16198 Chemical Structure

CAS No. 355025-13-7

Ki16198 is the methyl ester of Ki16425, which is a LPA antagonist and inhibits LPA1- and LPA3-induced inositol phosphate production with Ki of 0.34 μM and 0.93 μM, respectively, shows weaker inhibition for LPA2, no activity at LPA4, LPA5, LPA6.

Size Price Stock Quantity  
10mM (1mL in DMSO) EUR 520 In stock
EUR 265 In stock
EUR 363 In stock
EUR 1051 In stock
EUR 2427 In stock
Bulk Discount

Free Overnight Delivery on orders over $ 500
Next day delivery by 10:00 a.m. Order now.

Selleck's Ki16198 has been cited by 1 publication

1 Customer Review

  • Pain behavior and EDG2 and Nav1.8 expression after intrathecal injection of LPA. A LPA decreased PWTs (n = 8), and this was attenuated by the EDG2 antagonist Ki16198. B, C LPA up regulated EDG2 expression in L4-6 DRGs (n = 6). D, E Nav1.8 expression on L4-6 DRGs increased after LPA injection (n = 6). *P<0.05, **P<0.01, ***P<0.001.

    Neurosci Bull, 2016, 32(5):445-54.. Ki16198 purchased from Selleck.

Purity & Quality Control

Choose Selective LPA Receptor Inhibitors

Biological Activity

Description Ki16198 is the methyl ester of Ki16425, which is a LPA antagonist and inhibits LPA1- and LPA3-induced inositol phosphate production with Ki of 0.34 μM and 0.93 μM, respectively, shows weaker inhibition for LPA2, no activity at LPA4, LPA5, LPA6.
LPA1 [1] LPA3 [1]
0.34 μM(Ki) 0.93 μM(Ki)
In vitro

Ki16198 or Ki16425 substantially inhibits LPA1- and LPA3-mediated responses with a similar potency, with low potency to LPA2 and no activity to LPA4, LPA5 and LPA6. Ki16198 (10 μM) is also effective to inhibit migration and invasion responses to LPA in YAPC-PD cancer cell line with a potency similar to that of Ki16425. Ki16198 (10 μM) inhibits the LPA-induced expression of proMMP-9 protein and mRNA in YAPC-PD cells. [1] Ki16198 (1 μM) inhibits the proliferation of lpa1Δ-1 and lpa1Δ+-1 cells by about 70%. [2]

In vivo Ki16198 (2 mg/kg) significantly decreases the total metastatic node weight in the peritoneal cavity and ascites formation by 50% in YAPC-PD xenograft mouse model. [1] Ki16198 (60 mg/kg orally) significantly inhibits lactate-induced limb lesions in rats. [3]


Kinase Assay:[1]
- Collapse

Inositolphosphate response:

RH7777 cells expressing LPA1, LPA2, LPA3, LPA4, or LPA5 are cultured on collagen-coated 12-well dishes in the growth medium, and then the medium is changed to TCM199 containing 2 μCi/mL [3H]inositol and 0.1% (w/v) BSA (fraction V). After 24 h later, the cells are washed three times with HEPES-buffered medium, which consisted of 20 mM Hepes (pH 7.4), 134 mM NaCl, 4.7 mM KCl, 1.2 mM KH2PO4, 1.2 mM MgSO4, 2 mM CaCl2, 2.5 mM NaHCO3, 5 mM glucose, and 0.1% (w/v) BSA, and incubated for 30 min with the indicated concentrations of Ki16425 or Ki16198 with or without 1 μM LPA in the presence of 10 mM LiCl in the same medium at final volume of 0.5 mL. The reaction is terminated by adding 1 N HCl (0.1 mL) and freezing the cells. The supernatant (acid extract in 0.5 mL) of the thawed cells is used for the separation of [3H]inositol phosphate fractions. The results are normalized to 105 dpm of the total radioactivity incorporated into the cellular inositol lipids. The radioactivity of the trichloroacetic acid (5%)-insoluble fraction is measured as the total radioactivity.
Cell Research:[1]
- Collapse
  • Cell lines: YAPC-PD cells or Panc-1 cells
  • Concentrations: 10 μM
  • Incubation Time: 24 hours
  • Method: YAPC-PD cells or Panc-1 cells are seeded on 12-well plates at 1 × 104 cells in 1 mL. Sixteen hours before experiments, the medium is changed to RPMI1640 containing 0.1% BSA. Then, the cells are stimulated for 24 h in the same medium in the presence or absence of Ki16198. The proliferation activity is measured by the cellular ability to reduce MTT (3-(4,5-Dimethyl-2-thiazoyl)-2,5-diphenyltetrazolium bromide
    (Only for Reference)
Animal Research:[1]
- Collapse
  • Animal Models: YAPC-PD xenograft mouse model
  • Dosages: 2 mg/kg
  • Administration: Orally
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 96 mg/mL (196.32 mM)
Ethanol 35 mg/mL (71.57 mM)
Water Insoluble
In vivo Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
1% DMSO+30% polyethylene glycol+1% Tween 80
For best results, use promptly after mixing.
30 mg/mL

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 488.98


CAS No. 355025-13-7
Storage powder
in solvent
Synonyms N/A

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
Dosage mg/kg Average weight of animals g Dosing volume per animal ul Number of animals
Step 2: Enter the in vivo formulation ()
% DMSO % % Tween 80 % ddH2O

Bio Calculators

Molarity Calculator

Molarity Calculator

Calculate the mass, volume or concentration required for a solution. The Selleck molarity calculator is based on the following equation:

Mass (mg) = Concentration (mM) × Volume (mL) × Molecular Weight (g/mol)

  • Mass
    Molecular Weight

*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and MSDS / COA (available on product pages).

Dilution Calculator

Dilution Calculator

Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:

Concentration (start) x Volume (start) = Concentration (final) x Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )

  • C1

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

The Serial Dilution Calculator Equation

  • Serial Dilutions

  • Computed Result

  • C1=C0/X C1: LOG(C1):
    C2=C1/X C2: LOG(C2):
    C3=C2/X C3: LOG(C3):
    C4=C3/X C4: LOG(C4):
    C5=C4/X C5: LOG(C5):
    C6=C5/X C6: LOG(C6):
    C7=C6/X C7: LOG(C7):
    C8=C7/X C8: LOG(C8):
Molecular Weight Calculator

Molecular Weight Calculator

Enter the chemical formula of a compound to calculate its molar mass and elemental composition:

Total Molecular Weight: g/mol

Tip: Chemical formula is case sensitive. C10H16N2O2 c10h16n2o2

Instructions to calculate molar mass (molecular weight) of a chemical compound:

To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.

Definitions of molecular mass, molecular weight, molar mass and molar weight:

Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.

Molarity Calculator

Mass Concentration Volume Molecular Weight

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

Tel: +1-832-582-8158 Ext:3

If you have any other enquiries, please leave a message.

  • * Indicates a Required Field

LPA Receptor Signaling Pathway Map

Related LPA Receptor Products

Tags: buy Ki16198 | Ki16198 supplier | purchase Ki16198 | Ki16198 cost | Ki16198 manufacturer | order Ki16198 | Ki16198 distributor
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID