MedKoo Cat#: 408029 | Name: SS-208
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Description:

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

SS-208 is a potent and selective HDAC6 inhibitor (IC50-12 nM). SS-208 showed Antitumor Activity in Syngeneic Melanoma Mouse Models. SS-208 induces minimal cell death and exhibits marginal effects on viability, cytotoxicity, and apoptosis, while significantly increasing the levels of Ac-α-Tubulin. SS-208 efficiently reduces the IL-6-mediated Y705 phosphorylation of STAT3 and downregulates the expression of PD-L1 at the mRNA levels in melanoma cells

Chemical Structure

SS-208
CAS#2245942-72-5

Theoretical Analysis

MedKoo Cat#: 408029

Name: SS-208

CAS#: 2245942-72-5

Chemical Formula: C13H11Cl2N3O4

Exact Mass: 343.0127

Molecular Weight: 344.15

Elemental Analysis: C, 45.37; H, 3.22; Cl, 20.60; N, 12.21; O, 18.60

Price and Availability

Size Price Availability Quantity
5mg USD 500.00 2 Weeks
10mg USD 850.00 2 Weeks
25mg USD 1,350.00 2 Weeks
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Related CAS #
No Data
Synonym
SS-208; SS 208; SS208;
IUPAC/Chemical Name
5-(2-(3,4-Dichlorobenzamido)ethyl)-N-hydroxyisoxazole-3-carboxamide
InChi Key
JFGOILLZIAIYGA-UHFFFAOYSA-N
InChi Code
InChI=1S/C13H11Cl2N3O4/c14-9-2-1-7(5-10(9)15)12(19)16-4-3-8-6-11(18-22-8)13(20)17-21/h1-2,5-6,21H,3-4H2,(H,16,19)(H,17,20)
SMILES Code
O=C(C1=NOC(CCNC(C2=CC=C(Cl)C(Cl)=C2)=O)=C1)NO
Appearance
Solid powder
Purity
>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).
Solubility
Soluble in DMSO
Shelf Life
>3 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
2934.99.9001
More Info
Product Data
Biological target:
SS-208 is a selective HDAC6 inhibitor with an IC50 of 12 nM.
In vitro activity:
To be determined
In vivo activity:
The findings of this study suggest that the antitumor activity of SS-208 is mainly mediated by immune-related antitumor activity. SS-208 had minimal effects on the viability of murine SM1 melanoma cells in vitro, but it significantly reduced in vivo tumor growth in a murine SM1 syngeneic melanoma mouse model. Reference: J Med Chem. 2019 Sep 26;62(18):8557-8577. https://pubmed.ncbi.nlm.nih.gov/31414801/
Solvent mg/mL mM comments
Solubility
DMSO 125.0 363.21
Note: There can be variations in solubility for the same chemical from different vendors or different batches from the same vendor. The following factors can affect the solubility of the same chemical: solvent used for crystallization, residual solvent content, polymorphism, salt versus free form, degree of hydration, solvent temperature. Please use the solubility data as a reference only. Warming and sonication will facilitate dissolving. Still have questions? Please contact our Technical Support scientists.

Preparing Stock Solutions

The following data is based on the product molecular weight 344.15 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.

Recalculate based on batch purity %
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
Formulation protocol:
1. Shen S, Hadley M, Ustinova K, Pavlicek J, Knox T, Noonepalle S, Tavares MT, Zimprich CA, Zhang G, Robers MB, Bařinka C, Kozikowski AP, Villagra A. Discovery of a New Isoxazole-3-hydroxamate-Based Histone Deacetylase 6 Inhibitor SS-208 with Antitumor Activity in Syngeneic Melanoma Mouse Models. J Med Chem. 2019 Sep 26;62(18):8557-8577. doi: 10.1021/acs.jmedchem.9b00946. Epub 2019 Sep 4. PMID: 31414801.
In vitro protocol:
To be determined
In vivo protocol:
1. Shen S, Hadley M, Ustinova K, Pavlicek J, Knox T, Noonepalle S, Tavares MT, Zimprich CA, Zhang G, Robers MB, Bařinka C, Kozikowski AP, Villagra A. Discovery of a New Isoxazole-3-hydroxamate-Based Histone Deacetylase 6 Inhibitor SS-208 with Antitumor Activity in Syngeneic Melanoma Mouse Models. J Med Chem. 2019 Sep 26;62(18):8557-8577. doi: 10.1021/acs.jmedchem.9b00946. Epub 2019 Sep 4. PMID: 31414801.
1: Shen S, Hadley M, Ustinova K, Pavlicek J, Knox T, Noonepalle S, Tavares MT, Zimprich CA, Zhang G, Robers MB, Bařinka C, Kozikowski AP, Villagra A. Discovery of a New Isoxazole-3-hydroxamate-Based Histone Deacetylase 6 Inhibitor SS-208 with Antitumor Activity in Syngeneic Melanoma Mouse Models. J Med Chem. 2019 Sep 4. doi: 10.1021/acs.jmedchem.9b00946. [Epub ahead of print] PubMed PMID: 31414801.