SML2161
STA-21
≥95% (HPLC)
Synonym(s):
(±)-Deoxytetrangomycin, (±)-Ochromycinone, 3,4-Dihydro-8-hydroxy-3-methylbenz[a]anthracene-1,7,12(2H)-trione, NSC 628869, STA 21, STA21
Sign Into View Organizational & Contract Pricing
All Photos(1)
About This Item
Empirical Formula (Hill Notation):
C19H14O4
CAS Number:
Molecular Weight:
306.31
MDL number:
UNSPSC Code:
12352200
Recommended Products
assay
≥95% (HPLC)
form
powder
color
yellow to brown
solubility
DMSO: 2 mg/mL, clear
storage temp.
−20°C
SMILES string
CC1CC(C(C(C(C(C=CC=C2O)=C2C3=O)=O)=C3C=C4)=C4C1)=O
Application
STA-21 has been used as a signal transducer and activator of transcription 3 (STAT3) inhibitor to study its effects on glioblastoma and primary glioblastoma cells. It has also been used as a STAT3 dimerization inhibitor to study its effects on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) production in human lung cancer cell line.
Biochem/physiol Actions
STA-21 is a STAT3 inhibitor that reduces the constitutively high STAT3 transcriptional activity in Caov-3 and MDA-MB-435s cultures (by 9.125- and 5.765-fold, respectively, post 48-hr 20 μM treatment) by disrupting STAT3 homodimerization, an essential process for STAT3 nuclear localization and DNA-binding activity. STA-21 selectively inhibits the growth and survival of breast carcinoma cells with constitutive Stat3 signaling (26%, 25%, 56% apoptotic cells, respectively, in MDA-MB-231, MDA-MB-435s, and MDA-MB-468 cultures, respectively, post 48-hr 20 μM treatment) but not those without (<10% apoptosis in MCF7, MDA-MB-453, HSF cultures post 48-hr 20 μM treatmen). STA-21 is reported to alleviate autoimmune inflammation in a murine model of rheumatoid arthritis (RA; 0.5 mg/kg; 3X i.p./week) and reduce airway inflammation in allergic mice with psoriatic inflammation (20 μg/mouse/day topically) in vivo.
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Chun-Liang Chen et al.
BMC cancer, 7, 111-111 (2007-06-30)
Stat3 has been classified as a proto-oncogene and constitutive Stat3 signaling appears to be involved in oncogenesis of human cancers. However, whether constitutive Stat3 signaling plays a role in the survival and growth of osteosarcomas, rhabdomyosarcomas, and soft-tissue sarcomas is
Hui Song et al.
Proceedings of the National Academy of Sciences of the United States of America, 102(13), 4700-4705 (2005-03-23)
This study focused on the screening of small-molecule inhibitors that target signal transducers and activators of transcription 3 (Stat3) in human breast carcinoma. The constitutive activation of Stat3 is frequently detected in human breast cancer cell lines as well as
Chun-Liang Chen et al.
Molecular cancer, 7, 78-78 (2008-10-23)
Constitutive activation of signal transducer and activator of transcription 3 (Stat3) signaling pathway plays an important role in several human cancers. Activation of Stat3 is dependent on the phosphorylation at the tyrosine residue 705 by upstream kinases and subsequent nuclear
Chaohao Huang et al.
Cancer science, 108(11), 2130-2141 (2017-08-11)
Dermokine (DMKN) was first identified in relation to skin lesion healing and skin carcinoma. Recently, its expression was associated with pancreatic cancer tumorigenesis, although its involvement remains poorly understood. Herein, we showed that DMKN loss of function in Patu-8988 and
Hye-Jin Son et al.
Journal of immunology (Baltimore, Md. : 1950), 198(4), 1484-1491 (2017-01-18)
Oncostatin M (OSM) is a pleiotropic cytokine and a member of the IL-6 family. It has both proinflammatory and anti-inflammatory functions and is involved in the activation of STAT3 and STAT5. Rheumatoid arthritis is an autoimmune disease that causes chronic
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service