Cat. No.: HY-18963

Lavendustin A

(Synonyms: RG-14355)

1 Cited Publications

Customer Review

Based on 1 publication(s) in Google Scholar

Lavendustin A (RG-14355) is a potent, selective and ATP-competitive inhibitor of epidermal growth factor receptor (EGFR) tyrosine kinase, with an IC₅₀ of 11 nM. Lavendustin A does not inhibit protein kinase A or C. Lavendustin A can suppress VEGF-induced angiogenesis.

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

Purity: 98.95%
CAS No.: 125697-92-9
Formula: C₂₁H₁₉NO₆
Molecular Weight:381.38

Storage:

4°C, stored under nitrogen

* In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)

Lavendustin A Chemical Structure

CAS No.: 125697-92-9

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Use of MCE Products

Antibody-Drug Conjugates

One-stop solution for XDC (ADC/PDC/RDC/ApDC/FDC/ISAC/VDC/SMDC)

Biological Activity
- Description
- IC₅₀ & Target
- Cellular Effect
- In Vitro
- In Vivo
Chemical Information
Publications (1)
Solvent & Solubility
- In Vitro
- In Vivo
Purity & Documentation
References
Help & FAQs
Classifications
Bioz

Biological Activity

Description

IC₅₀ & Target

IC50: 11 nM (EGFR-associated tyrosine kinase)^[1]

All EGFR Isoforms :

Cellular Effect

Cell Line	Type	Value	Description	References
A-431	IC₅₀	4 ng/mL Compound: 76	Inhibition of EGFR in human A431 cells Inhibition of EGFR in human A431 cells	[PMID: 1479375]
A-431	IC₅₀	4 x 10^-3 μg/mL Compound: 76	Inhibition of EGFR in human A431 cells Inhibition of EGFR in human A431 cells	[PMID: 1479375]
A-431	IC₅₀	26 μg/mL Compound: 1	Cytotoxicity against human A431 cells Cytotoxicity against human A431 cells	[PMID: 2614420]
HaCaT	IC₅₀	>100 μM Compound: 1	Inhibitory activity of HaCaT keratinocyte cell line Inhibitory activity of HaCaT keratinocyte cell line	[PMID: 7990108]
L1210	IC₅₀	28 μg/mL Compound: 1	Cytotoxicity against mouse L1210 cells Cytotoxicity against mouse L1210 cells	[PMID: 2614420]
NIH3T3	IC₅₀	19.5 μg/mL Compound: 1	Cytotoxicity against RSV transformed mouse NIH/3T3 cells Cytotoxicity against RSV transformed mouse NIH/3T3 cells	[PMID: 2614420]
NIH3T3	IC₅₀	22 μg/mL Compound: 1	Cytotoxicity against mouse NIH/3T3 cells Cytotoxicity against mouse NIH/3T3 cells	[PMID: 2614420]
P388	IC₅₀	21.5 μg/mL Compound: 1	Cytotoxicity against mouse P388 cells Cytotoxicity against mouse P388 cells	[PMID: 2614420]

In Vitro

Lavendustin A (5-50μM) dose-dependently inhibits progesterone production in cultures of ovarian dispersates^[3].

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

In Vivo

Lavendustin A (10 μg) reduces the 133Xe clearance of VEGF165-treated (250 ng) sponges and the total fibrovascular growth area^[2].

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

Chemical Information

CAS No. 125697-92-9
Appearance Solid
Molecular Weight 381.38
Formula C₂₁H₁₉NO₆
Color Off-white to light brown
SMILES

O=C(O)C1=CC(N(CC2=CC(O)=CC=C2O)CC3=CC=CC=C3O)=CC=C1O
Synonyms

RG-14355
Structure Classification
- Phenols
- Polyphenols
- Ketones, Aldehydes, Acids
Initial Source
- Microorganisms
Streptomyces griseolavendus
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, stored under nitrogen

* In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)

Publications (1)

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Journal Impact Factor

ISME J

Endophytic commensal bacteria capitalize on the AvrPto-FER pathway to enhance proliferation during early stages of pathogen invasion. [Abstract]

2025 Jan 2;19(1):wraf145. PMID: 40632106

Solvent & Solubility

In Vitro:

DMSO : 100 mg/mL (262.21 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

View the Complete Stock Solution Preparation Table

Preparing Stock Solutions

View the Complete Stock Solution Preparation Table

Concentration Solvent Mass

1 mg

5 mg

10 mg

Concentration

Solvent

Mass

1 mM

2.6221 mL

13.1103 mL

26.2206 mL

5 mM

0.5244 mL

2.6221 mL

5.2441 mL

10 mM

0.2622 mL

1.3110 mL

2.6221 mL

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, 6 months; -20°C, 1 month (stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Molarity Calculator

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

Mass Mass

Concentration Concentration

Volume Volume

Molecular Weight Molecular Weight

Dilution Calculator

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

Concentration _(start) Concentration _(start)

Volume _(start) Volume _(start)

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In Vivo:

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

Stock Solution Working Solution

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: 2.5 mg/mL (6.56 mM); Clear solution; Need ultrasonic

This protocol yields a clear solution of 2.5 mg/mL.

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.

Protocol 2

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

Solubility: 2.5 mg/mL (6.56 mM); Clear solution; Need ultrasonic

This protocol yields a clear solution of 2.5 mg/mL.

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil

Solubility: 2.5 mg/mL (6.56 mM); Clear solution; Need ultrasonic

This protocol yields a clear solution of 2.5 mg/mL. If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage Dosage
mg/kg
Animal Weight (Per Animal) Animal Weight (Per Animal)
g
Dosing Volume (Per Animal) Dosing Volume (Per Animal)
μL
Number of Animals Number of Animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

%
DMSO +

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
%
+
+
%
Tween-80 + +
%
Saline +

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).

Working solution concentration: 0.22 mg/mL

Purity & Documentation

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (280 KB)
SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Handling Instructions (2659 KB)

References

[1]. Onoda T, et, al. Isolation of a novel tyrosine kinase inhibitor, lavendustin A, from Streptomyces griseolavendus. J Nat Prod. 1989 Nov-Dec;52(6):1252-7. [Content Brief]

[2]. Hu DE, et, al. Suppression of VEGF-induced angiogenesis by the protein tyrosine kinase inhibitor, lavendustin A. Br J Pharmacol. 1995 Jan;114(2):262-8. [Content Brief]

[3]. Whitehead SA, et, al. Protein tyrosine kinase activity of lavendustin A and the phytoestrogen genistein on progesterone synthesis in cultured rat ovarian cells. Fertil Steril. 2000 Mar;73(3):613-9. [Content Brief]

Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO	1 mM	2.6221 mL	13.1103 mL	26.2206 mL	65.5514 mL
	5 mM	0.5244 mL	2.6221 mL	5.2441 mL	13.1103 mL
	10 mM	0.2622 mL	1.3110 mL	2.6221 mL	6.5551 mL
	15 mM	0.1748 mL	0.8740 mL	1.7480 mL	4.3701 mL
	20 mM	0.1311 mL	0.6555 mL	1.3110 mL	3.2776 mL
	25 mM	0.1049 mL	0.5244 mL	1.0488 mL	2.6221 mL
	30 mM	0.0874 mL	0.4370 mL	0.8740 mL	2.1850 mL
	40 mM	0.0656 mL	0.3278 mL	0.6555 mL	1.6388 mL
	50 mM	0.0524 mL	0.2622 mL	0.5244 mL	1.3110 mL
	60 mM	0.0437 mL	0.2185 mL	0.4370 mL	1.0925 mL
	80 mM	0.0328 mL	0.1639 mL	0.3278 mL	0.8194 mL
	100 mM	0.0262 mL	0.1311 mL	0.2622 mL	0.6555 mL

Keywords

Lavendustin A

1 Cited Publications

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Lavendustin A

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Publications Citing Use of MedChemExpress (MCE) Lavendustin A

All EGFR Isoforms

Biological Activity

Chemical Information

Publications (1)

Solvent & Solubility

Purity & Documentation

References

Help & FAQs

Complete Stock Solution Preparation Table

Lavendustin A Related Classifications

HY-18963 Related Classifications