Shelf life (days): 1460.0
Formulation: A solid
Formal Name: N-[3-[5-(2-amino-4-pyrimidinyl)-2-[1,1-di(methyl-d3)ethyl-2,2,2-d3]-4-thiazolyl]-2-fluorophenyl]-2,6-difluoro-benzenesulfonamide
Purity: ≥99% deuterated forms (d1-d9)
Formula Markup: C23H11D9F3N5O2S2
Formula Weight: 528.619149
CAS Number: 1423119-98-5
Notes: Dabrafenib-d9 is intended for use as an internal standard for the quantification of dabrafenib (Item No. 16989) by GC- or LC-MS. Dabrafenib is an ATP-competitive inhibitor of Raf kinases (IC50s = 0.64, 0.68 and 5 nM for wild-type B-RAF kinase, mutant B-RAFV600E, and wild-type C-RAF kinase, respectively).{42963} It also inhibits the tyrosine kinase-like kinases ALK5 and LIMK1 (IC50s = 11 and 15 nM, respectively) and the calcium/calmodulin-dependent protein kinases SIK2 and PDK2 (IC50s = 27 and 57 nM, respectively), as well as NEK11, CK1, and BRK (IC50s = 20, 41, and 79 nM, respectively) in a panel of 270 kinases at 300 nM. Dabrafenib inhibits the growth of 16 cancer cell lines expressing mutant B-RAFV600E (GI50s = 50s = 50s = V600E, 133 cell lines expressing wild-type Ras and Raf, or 18 cell lines expressing mutant Ras (GI50s = >10 µM) in a panel of 195 cancer cell lines. Dabrafenib (8 nM) inhibits MAPK signaling, inhibiting phosphorylation of MEK and ERK, and activates caspase-3/7 in B-RAFV600E-expressing A375P melanoma cells but not in wild-type B-RAF-expressing human foreskin fibroblasts (EC200s =71 and >10,000 nM, respectively). It reduces tumor growth in an A375P mouse xenograft model when administered at doses ranging from 3 to 100 mg/kg. Formulations containing dabrafenib have been used in the treatment of B-RAFV600E-expressing cancers.
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