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Cat. No. M9397
MS4078 Structure
Size Price Availability Quantity
5mg USD 350  USD350 In stock
10mg USD 550  USD550 In stock
25mg USD 985  USD985 In stock
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Quality Control & Documentation
Biological Activity

MS4078 is a PROTAC degrader of ALK which potently decreases cellular levels of oncogenic active ALK fusion proteins in SU-DHL-1 lymphoma and NCI-H2228 lung cancer cells, with a Kd of 19 nM for binding affinity to ALK. MS4078 potently reduces the ALK fusion protein levels and inhibits the ALK auto-phosphorylation and down-steam STAT3 phosphorylation in both SU-DHL-1 and NCI-H2228 cells in a concentration-dependent manner. In NCI-H2228 cells, MS4078 reduces the EML4-ALK protein levels with similar DC50 value of 59 ± 16 nM after 16-hour treatment. At the 100 nM concentration, NCI-H2228 cells reduces more than 90% of EML4-ALK protein levels

Chemical Information
Molecular Weight 914.47
Formula C45H52ClN9O8S
CAS Number 2229036-62-6
Solubility (25°C) DMSO ≥ 90 mg/mL
Storage Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Conversion of different model animals based on BSA (PMID: 27057123)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.


[1] Zhang C, et al. Eur J Med Chem. Proteolysis Targeting Chimeras (PROTACs) of Anaplastic Lymphoma Kinase (ALK).

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Abmole Inhibitor Catalog

Keywords: MS4078 supplier, ALK, inhibitors, activators

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