2. Immunology/Inflammation
  3. Complement System
  4. Iptacopan

Iptacopan (LNP023) is a first-in-class, orally bioavailable, highly potent and highly selective factor B inhibitor with an IC50 value of 10 nM. Iptacopan shows direct, reversible, and high-affinity binding to human factor B with a KD of 7.9 nM. Iptacopan targets the underlying cause of complement 3 glomerulopathy (C3G).

For research use only. We do not sell to patients.

Iptacopan Chemical Structure

Iptacopan Chemical Structure

CAS No. : 1644670-37-0

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 440 In-stock
Solution
10 mM * 1 mL in DMSO USD 440 In-stock
Solid
1 mg USD 160 In-stock
5 mg USD 400 In-stock
10 mg USD 680 In-stock
50 mg USD 1900 In-stock
100 mg USD 2900 In-stock
200 mg   Get quote  
500 mg   Get quote  

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Customer Review

Based on 6 publication(s) in Google Scholar

Other Forms of Iptacopan:

Iptacopan Related Antibodies

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  • Purity & Documentation

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  • Customer Review

Description

Iptacopan (LNP023) is a first-in-class, orally bioavailable, highly potent and highly selective factor B inhibitor with an IC50 value of 10 nM. Iptacopan shows direct, reversible, and high-affinity binding to human factor B with a KD of 7.9 nM. Iptacopan targets the underlying cause of complement 3 glomerulopathy (C3G)[1][2].

IC50 & Target

KD: 7.9 nM (factor B)[2]
IC50: 10 nM (factor B)[2]
In Vitro

Iptacopan (LNP023) demonstrates potent inhibition of alternative complement pathway (AP)-induced membrane attack complex (MAC) formation in 50% human serum (IC50 value of 130 nM)[2].
? Iptacopan (LNP023) exhibits excellent selectivity over other proteases affording IC50 values of >30 μM across a panel of 41 human proteases, including the AP protein factor D (>100 μM)[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Iptacopan Related Antibodies
In Vivo

Iptacopan (LNP023; 20-180 mg/kg; oral administration) prevents KRN (150 μL)-induced arthritis in mice and is effective upon prophylactic and therapeutic dosing in an experimental model of membranous nephropathy in rats[2].
? LNP023 exhibits moderate half-lives (T1/2; Wistar Han rats 3.4 h, beagle dogs 5.5 h) and Cmax (Wistar Han rats 410 nM, beagle dogs 2200 nM) following oral administration (rat 30 and, dog 10 mg/kg)[3].
? Iptacopan exhibits terminal elimination half-lives (T1/2; Wistar Han rats 7 h, beagle dogs 5.6 h) due to high plasma clearance (8, and 2 mL/min/kg respectively combined with large volumes of distribution (2.3, and 0.6 L/kg respectively) following intravenous administration (rat 1.0 and, dog 0.1 mg/kg)[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: C57BL/6 mice with KRN-induced arthritis[2]
Dosage: 20, 60, and 180 mg/kg
Administration: Orally gavaged; twice a day (b.i.d.) for 14 days
Result: Blocked KRN-induced arthritis.
Clinical Trial
Molecular Weight

422.52

Formula

C25H30N2O4
CAS No.
Appearance

Solid

Color

Off-white to gray

SMILES

O=C(O)C1=CC=C([C@H]2N(CC3=C(OC)C=C(C)C4=C3C=CN4)CC[C@H](OCC)C2)C=C1
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 1 year
-20°C 6 months
Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (118.34 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.3668 mL 11.8338 mL 23.6675 mL
5 mM 0.4734 mL 2.3668 mL 4.7335 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 5 mg/mL (11.83 mM); Clear solution

    This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 5 mg/mL (11.83 mM); Clear solution

    This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: 99.96%

COA (252 KB) HNMR (246 KB) RP-HPLC (255 KB) LCMS (94 KB)

Handling Instructions (2659 KB)
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.3668 mL 11.8338 mL 23.6675 mL 59.1688 mL
5 mM 0.4734 mL 2.3668 mL 4.7335 mL 11.8338 mL
10 mM 0.2367 mL 1.1834 mL 2.3668 mL 5.9169 mL
15 mM 0.1578 mL 0.7889 mL 1.5778 mL 3.9446 mL
20 mM 0.1183 mL 0.5917 mL 1.1834 mL 2.9584 mL
25 mM 0.0947 mL 0.4734 mL 0.9467 mL 2.3668 mL
30 mM 0.0789 mL 0.3945 mL 0.7889 mL 1.9723 mL
40 mM 0.0592 mL 0.2958 mL 0.5917 mL 1.4792 mL
50 mM 0.0473 mL 0.2367 mL 0.4734 mL 1.1834 mL
60 mM 0.0394 mL 0.1972 mL 0.3945 mL 0.9861 mL
80 mM 0.0296 mL 0.1479 mL 0.2958 mL 0.7396 mL
100 mM 0.0237 mL 0.1183 mL 0.2367 mL 0.5917 mL
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Iptacopan Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Iptacopan1644670-37-0LNP023LNP 023LNP-023Complement Systemfactor BalternativepathwayAPcomplementsystempathogenesisparoxysmalnocturnalhemoglobinuriaPNHatypicalhemolyticuremicsyndromeunderlyingcausecomplement 3glomerulopathyC3GInhibitorinhibitorinhibit

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