SJFα, potent and selective p38α PROTAC

Catalog No. Size PriceQuantity
M7227-2 2mg solid $195
M7227-10 10mg solid $780


SJFα is a novel isoform-selective PROTAC p38α degrader. SJFα comprises the multikinase inhibitor foretinib joined by a linker to a VHL ligand. Displays significantly lower potency degradation at p38δ (DC50 = 299 nM). Exhibits no significant degradation of p38β or γ. or related MAPKs, ERK1/2, or JNK1/2.

Product information

CAS Number: 2254609-27-1

Molecular Weight: 1120.27

Formula: C59H67F2N7O11S





Chemical Name: N-(3-Fluoro-4-((7-(4-(4-(2-(((S)-1-((2S,4R)-4-hydroxy-2-((4-(4-methylthiazol-5-yl)benzyl)carbamoyl)pyrrolidin-1-yl)-3,3-dimethyl-1-oxobutan-2-yl)amino)-2-oxoethoxy)butoxy)butoxy)-6-methoxyquinolin-4-yl)oxy)phenyl)-N-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide



InChi: InChI=1S/C59H67F2N7O11S/c1-36-52(80-35-65-36)38-12-10-37(11-13-38)32-64-54(71)46-29-42(69)33-67(46)55(72)53(58(2,3)4)66-51(70)34-77-26-7-6-24-76-25-8-9-27-78-50-31-45-43(30-49(50)75-5)47(20-23-63-45)79-48-19-18-41(28-44(48)61)68(40-16-14-39(60)15-17-40)57(74)59(21-22-59)56(62)73/h10-20,23,28,30-31,35,42,46,53,69H,6-9,21-22,24-27,29,32-34H2,1-5H3,(H2,62,73)(H,64,71)(H,66,70)/t42-,46+,53-/m1/s1

Technical Data

Appearance: Solid powder

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: Soluble in DMSO

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200


  1. Smith et al (2019) Differential PROTAC substrate specificity dictated by orientation of recruited E3 ligase. Nat. Commun. 10, 131.

Products are for research use only. Not for human use.

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