WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 407907

CAS#: 1943733-16-1

Description: YU238259 Is a Novel Inhibitor of Homology-Dependent DNA Repair. YU238259 exhibits potent synthetic lethality in the setting of DNA damage response and DNA repair defects. YU238259 specifically inhibits homology-dependent DNA repair, but not non-homologous end-joining, in cell-based GFP reporter assays. Treatment with YU238259 is not only synergistic with ionizing radiation, etoposide, and PARP inhibition, but this synergism is heightened by BRCA2 deficiency.

Price and Availability

Size Price Shipping out time Quantity
50mg USD 350 2 Weeks
100mg USD 650 2 Weeks
200mg USD 950 2 Weeks
500mg USD 1650 2 Weeks
1g USD 2650 2 Weeks
2g USD 3850 2 Weeks
5g USD 5950 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-01-20. Prices are subject to change without notice.

YU238259, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 407907
Name: YU238259
CAS#: 1943733-16-1
Chemical Formula: C22H22ClN3O4S
Exact Mass: 459.102
Molecular Weight: 459.945
Elemental Analysis: C, 57.45; H, 4.82; Cl, 7.71; N, 9.14; O, 13.91; S, 6.97

Synonym: YU238259; YU-238259; YU 238259;

IUPAC/Chemical Name: N-(2-(5-chloropyridin-2-yl)ethyl)-4-(((4-methoxyphenyl)sulfonamido)methyl)benzamide


InChi Code: InChI=1S/C22H22ClN3O4S/c1-30-20-8-10-21(11-9-20)31(28,29)26-14-16-2-4-17(5-3-16)22(27)24-13-12-19-7-6-18(23)15-25-19/h2-11,15,26H,12-14H2,1H3,(H,24,27)


Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:

Additional Information

Further, growth of BRCA2-deficient human tumor xenografts in nude mice is significantly delayed by YU238259 treatment even in the absence of concomitant DNA-damaging therapy. The cytotoxicity of these small molecules in repair-deficient cells results from an accumulation of unresolved DNA double-strand breaks. YU238259 or related small molecules may have clinical benefit to patients with advanced BRCA2-negative tumors, either as a monotherapy or as an adjuvant to radiotherapy and certain chemotherapies.


1: Stachelek GC, Peterson-Roth E, Liu Y, Fernandez RJ 3rd, Pike LR, Qian JM,
Abriola L, Hoyer D, Hungerford W, Merkel J, Glazer PM. YU238259 Is a Novel
Inhibitor of Homology-Dependent DNA Repair That Exhibits Synthetic Lethality and
Radiosensitization in Repair-Deficient Tumors. Mol Cancer Res. 2015
Oct;13(10):1389-97. doi: 10.1158/1541-7786.MCR-15-0036. Epub 2015 Jun 26. PubMed
PMID: 26116172; PubMed Central PMCID: PMC4618103.