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

MedKoo CAT#: 406355

CAS#: 1276110-06-5

Description: HS-173 is a potent PI3Kα inhibitor with potential anticancer activity. HS-173 inhibited the PI3K signaling pathway, and showed anti-proliferative effects on cancer cells. Also, HS-173 induced cell cycle arrest at the G(2)/M phase and apoptosis. In addition, HS-173 decreased the expression HIF-1α and VEGF which play an important role in angiogenesis. This effect was confirmed by the suppression of tube formation and migration assay in vitro. Furthermore, HS-173 diminished blood vessel formation in the Matrigel plug assay in mice. Therefore, HS-173 is considered as a novel drug candidate to treat cancer patients.

Chemical Structure

CAS# 1276110-06-5

Theoretical Analysis

MedKoo Cat#: 406355
Name: HS-173
CAS#: 1276110-06-5
Chemical Formula: C21H18N4O4S
Exact Mass: 422.10488
Molecular Weight: 422.46
Elemental Analysis: C, 59.70; H, 4.29; N, 13.26; O, 15.15; S, 7.59

Size Price Shipping out time Quantity
10mg USD 90 Same day
25mg USD 150 Same day
50mg USD 250 Same day
100mg USD 450 Same day
200mg USD 850 Same day
500mg USD 1850 Same day
1g USD 2750 Same day
2g USD 3950 2 weeks
5g USD 6950 2 weeks
Inquire bulk and customized quantity

Pricing updated 2021-03-01. Prices are subject to change without notice.

HS-173, purity > 98%, is in stock. The same day shipping out after order is received.

Synonym: HS173; HS 173; HS-173.

IUPAC/Chemical Name: ethyl 6-(5-(phenylsulfonamido)pyridin-3-yl)imidazo[1,2-a]pyridine-3-carboxylate


InChi Code: InChI=1S/C21H18N4O4S/c1-2-29-21(26)19-13-23-20-9-8-15(14-25(19)20)16-10-17(12-22-11-16)24-30(27,28)18-6-4-3-5-7-18/h3-14,24H,2H2,1H3

SMILES Code: O=C(C1=CN=C2C=CC(C3=CC(NS(=O)(C4=CC=CC=C4)=O)=CN=C3)=CN21)OCC

white to off-white 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:
0 – 4 C for short term (weeks to 1 month) or -20 C for long terms (months to years).

soluble in DMSO, not soluble in water.

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:

Preparing Stock Solutions

The following data is based on the product molecular weight 422.46 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Son MK, Ryu YL, Jung KH, Lee H, Lee HS, Yan HH, Park HJ, Ryu JK, Suh JK, Hong S, Hong SS. HS-173, a novel PI3K inhibitor, attenuates the activation of hepatic stellate cells in liver fibrosis. Sci Rep. 2013 Dec 11;3:3470. doi: 10.1038/srep03470. PubMed PMID: 24326778; PubMed Central PMCID: PMC3858860.

2: Lee H, Kim SJ, Jung KH, Son MK, Yan HH, Hong S, Hong SS. A novel imidazopyridine PI3K inhibitor with anticancer activity in non-small cell lung cancer cells. Oncol Rep. 2013 Aug;30(2):863-9. doi: 10.3892/or.2013.2499. Epub 2013 May 27. PubMed PMID: 23708425.

3: Jung KH, Ryu YL, Lee HS, Lee H, Son MK, Yan HH, Hong SW, Ryu JK, Hong S, Suh JK, Hong SS. A novel PI3K inhibitor alleviates fibrotic responses in fibroblasts derived from Peyronie's plaques. Int J Oncol. 2013 Jun;42(6):2001-8. doi: 10.3892/ijo.2013.1905. Epub 2013 Apr 16. PubMed PMID: 23588860.

4: Yun SM, Jung KH, Lee H, Son MK, Seo JH, Yan HH, Park BH, Hong S, Hong SS. Synergistic anticancer activity of HS-173, a novel PI3K inhibitor in combination with Sorafenib against pancreatic cancer cells. Cancer Lett. 2013 May 1;331(2):250-61. doi: 10.1016/j.canlet.2013.01.007. Epub 2013 Jan 20. PubMed PMID: 23340175.

5: Lee H, Jung KH, Jeong Y, Hong S, Hong SS. HS-173, a novel phosphatidylinositol 3-kinase (PI3K) inhibitor, has anti-tumor activity through promoting apoptosis and inhibiting angiogenesis. Cancer Lett. 2013 Jan 1;328(1):152-9. doi: 10.1016/j.canlet.2012.08.020. Epub 2012 Aug 26. PubMed PMID: 22929971.

Additional Information