AS-99
- Availability: 24/48H Stock Items & 2 to 6 Weeks non Stock Items.
- Dry Ice Shipment: No


AS-99
Description :
AS-99 is a first-in-class, potent, and selective ASH1L histone methyltransferase inhibitor (IC50= 0.79 μM, Kd= 0.89 μM) with anti-leukemic activity. AS-99 blocks cell proliferation, induces apoptosis and differentiation, downregulates MLL fusion target genes, and reduces the leukemia burden in vivo[1].UNSPSC :
12352005Target :
Apoptosis; Histone MethyltransferaseType :
Reference compoundRelated Pathways :
Apoptosis; EpigeneticsField of Research :
CancerAssay Protocol :
https://www.medchemexpress.com/as-99-1.htmlSolubility :
10 mM in DMSOSmiles :
O=C(C1CN(C)C1)NCC2=CC3=C(C=C2)C(C4=CC=CC(C(N)=S)=C4)=CN3C5CCN(S(=O)(C(F)(F)F)=O)CC5.[H]ClMolecular Formula :
C27H31ClF3N5O3S2Molecular Weight :
630.14References & Citations :
[1]Rogawski DS, et al. Discovery of first-in-class inhibitors of ASH1L histone methyltransferase with anti-leukemic activity. Nat Commun. 2021 May 14;12 (1) :2792.Shipping Conditions :
Room temperatureScientific Category :
Reference compound1Clinical Information :
No Development ReportedIsoform :
ASH1L/KMT2HCitation 01 :
Adv Sci (Weinh) . 2024 Dec;11 (45) :e2404756.|Nat Commun. 2025 May 20;16 (1) :4681.

