1. Cell Cycle/DNA Damage
    Metabolic Enzyme/Protease
  2. HSP
  3. HS-131


Cat. No.: HY-122878
Handling Instructions

HS-131, a near infrared dye tethered Hsp90 inhibitor, is able to detect oncogene-driven breast cancers, including multiple different molecular subtypes of human breast cancers.

For research use only. We do not sell to patients.

HS-131 Chemical Structure

HS-131 Chemical Structure

CAS No. : 2084850-40-6

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HS-131, a near infrared dye tethered Hsp90 inhibitor, is able to detect oncogene-driven breast cancers, including multiple different molecular subtypes of human breast cancers[1].

In Vitro


Cell Line: Tumor cells.
Concentration: 10 µM.
Incubation Time: 30 min.
Result: Tissues/organs, including eyes, brain, heart, lung, liver, spleen, kidney, gut, urinary bladder and skin, were imaged ex vivo by the IVIS imager machine, an imaging modality that detects IR at 640 nm.
In Vivo

HS131 (10 nmol/mouse) could label breast cancers with different molecular subtypes, including MCF-7 and T-47D for luminal type, BT474M1 and KPL-4 for HER2+ subtype, MDA-MB-231 and MDA-MB-468 for triple negative subtype were chosen after considering the tumorigenic capacities of breast cancer cell lines in SCID mice[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: SCID-beige mice bearing human breast cancer xenografts of different molecular subtypes[1].
Dosage: 10 nmol/mouse.
Administration: Injected intravenously.
Result: All breast cancer xenografts with different molecular subtypes showed stronger nIR signals in tumor by intravenous administration of HS131 compared to HS152, and the retention of the nIR signals was detectable even at the 24 h time point in HS131 injected mice.
Molecular Weight







Room temperature in continental US; may vary elsewhere.


Please store the product under the recommended conditions in the Certificate of Analysis.

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  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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