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Olomorasib (Unassigned Enantiomer) KRAS G12C Inhibitor

Name: Olomorasib (Unassigned Enantiomer)
Brand: Selleck Chemicals
SKU: E1433
Availability: InStock
Rating: 5 (1 reviews)

Cat.No.E1433

Olomorasib (Unassigned Enantiomer) (LY3537982) is a highly selective and potent inhibitor of the KRAS-G12C protein. Olomorasib (Unassigned Enantiomer) (LY3537982) selectively inhibits the growth of KRAS G12C mutant cells H23 G12C, H358 G12C, and H2122 G12C with IC50s of 1.04 nM, 1.16 nM, and 11.38 nM, respectively.

Chemical Structure

Molecular Weight: 528.96

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Quality Control

Batch: E143301 DMSO]100 mg/mL]false]Water]Insoluble]false]Ethanol]Insoluble]false Purity: 99.01%

Cited in Nature Medicine for its top-tier quality
COA
NMR
HPLC
SDS/MSDS
Datasheet

99.01

Related Targets	CXCR Hedgehog/Smoothened PKA Adrenergic Receptor AChR 5-HT Receptor Histamine Receptor Dopamine Receptor Ras GPR
Other KRas Inhibitors	RMC-7977 Daraxonrasib (RMC-6236) MRTX1133 Zoldonrasib (RMC-9805) BI-2852 Adagrasib (MRTX849) HRS-4642 ARS-1620 BI-3406 ARS-853

Solubility

In vitro
Batch:

DMSO : 100 mg/mL (189.05 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	2.500mg/ml (4.73mM)	Taking the 1 mL working solution as an example, add 50 μL of 50 mg/ml clarified DMSO stock solution to 400 μL PEG300, mix evenly to clarify it; add 50 μL Tween80 to the above system, mix evenly to clarify it; then continue to add 500 μL ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	0.800mg/ml (1.51mM)	Taking the 1 mL working solution as an example, add 50 μL of 16 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.

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: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

% Tween 80

% ddH₂O

% DMSO

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Chemical Information, Storage & Stability

Molecular Weight	528.96	Formula	C₂₅H₁₉ClF₂N₄O₃S	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	2649788-46-3	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent

Read more about storage stability stock solution CAS number

Mechanism of Action

Targets/IC₅₀/Ki	KRAS-G12C
References	[1] https://pubmed.ncbi.nlm.nih.gov/34845311/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2026-08-24)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT06119581	RECRUITING	Carcinoma, Non-Small-Cell Lung; Neoplasm Metastasis	Eli Lilly and Company	2023-12-21	PHASE3
NCT04956640	ACTIVE_NOT_RECRUITING	Carcinoma, Non-Small-Cell Lung; Colorectal Neoplasms; Endometrial Neoplasms; Ovarian Neoplasms; Pancreatic Neoplasms; Biliary Tract Neoplasms	Eli Lilly and Company	2021-07-19	PHASE1; PHASE2
NCT07439250	COMPLETED	Healthy	Eli Lilly and Company	2026-03-02	PHASE1
NCT07137689	COMPLETED	Renal Insufficiency	Eli Lilly and Company	2025-08-18	PHASE1
NCT07124013	COMPLETED	Healthy	Eli Lilly and Company	2025-09-16	PHASE1
NCT07044271	COMPLETED	Healthy	Eli Lilly and Company	2025-07-11	PHASE1

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