For research use only. Not for therapeutic Use.
HS-27, a fluorescently-tethered Hsp90 inhibitor, assays surface Hsp90 expression on intact tissue specimens. HS-27 is made up of the core elements of SNX-5422, an Hsp90 inhibitor, tethered via a PEG linker to a fluorescein derivative (fluorescein isothiocyanate or FITC), that binds to ectopically expressed Hsp90. HS-27 has potential use in a see-and-treat paradigm in breast cancer[1].
HS-27 labels all receptor subtypes of breast cancer, but not normal cells, and specifically binds to Hsp90 expressed on the surface of breast cancer cells before being internalized. HS-27 fluorescence is greater in tumor than non-tumor tissue[1].
| Catalog Number | I016339 |
| CAS Number | 1562024-11-6 |
| Synonyms | 2-[3-[2-[2-[2-[2-[3-[(3′,6′-dihydroxy-3-oxospiro[2-benzofuran-1,9′-xanthene]-5-yl)carbamothioylamino]propoxy]ethoxy]ethoxy]ethoxy]ethoxy]propylamino]-4-(3,6,6-trimethyl-4-oxo-5,7-dihydroindazol-1-yl)benzamide |
| Molecular Formula | C52H60N6O12S |
| Purity | ≥95% |
| InChI | InChI=1S/C52H60N6O12S/c1-32-47-43(30-51(2,3)31-44(47)61)58(57-32)34-7-10-37(48(53)62)42(27-34)54-14-4-16-64-18-20-66-22-24-68-25-23-67-21-19-65-17-5-15-55-50(71)56-33-6-11-39-38(26-33)49(63)70-52(39)40-12-8-35(59)28-45(40)69-46-29-36(60)9-13-41(46)52/h6-13,26-29,54,59-60H,4-5,14-25,30-31H2,1-3H3,(H2,53,62)(H2,55,56,71) |
| InChIKey | QUGHMMYGFASWKI-UHFFFAOYSA-N |
| SMILES | CC1=NN(C2=C1C(=O)CC(C2)(C)C)C3=CC(=C(C=C3)C(=O)N)NCCCOCCOCCOCCOCCOCCCNC(=S)NC4=CC5=C(C=C4)C6(C7=C(C=C(C=C7)O)OC8=C6C=CC(=C8)O)OC5=O |
| Reference | [1]. Crouch BT, et al. Exploiting heat shock protein expression to develop a non-invasive diagnostic tool for breast cancer. Sci Rep. 2019 Mar 5;9(1):3461. |
