Date published: 2026-3-6

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XL 388 (CAS 1251156-08-7)

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Alternate Names:
[7-(6-Amino-3-pyridinyl)-2,3-dihydro-1,4-benzoxazepin-4(5H)-yl][3-fluoro-2-methyl-4-(methylsulfonyl)phenyl]-methanone
CAS Number:
1251156-08-7
Molecular Weight:
455.50
Molecular Formula:
C23H22FN3O4S
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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XL 388 is a mTOR inhibitor that inhibits in an ATP-competitive manner. Exhibits >300-fold selectivity for mTOR over PI 3-K and a range of other kinases. Displays antitumor activity in athymic nude mice implanted with tumor xenografts.

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

XL 388, 10 mg

sc-396199
10 mg
$259.00