A fluorescent H2S probe
Technical Support & Resources

Information provided in the product description is from published literature. Due to the nature of scientific experimentation, your results (e.g., selectivity and effective concentrations) or specific application for this product may differ. If you have questions about how this product fits your application, please contact our technical support staff.

Visit our FAQ

Contact Us

Toll Free Phone (USA and Canada Only): (888) 526-5351
Direct Phone: (734) 975-3888

Request Technical Support

Technical Support Request

To streamline the process attach the appropriate questionnaire to your inquiry.

Download IHC QuestionnaireDownload WB Questionnaire

View Our Privacy Statement for details on how we use and protect your data. In addition, this site is protected by hCaptcha and its Privacy Policy and Terms of Service apply.

WSP-1

Item No. 11179

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
3'-methoxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthen]-6'-yl 2-(pyridin-2-yldisulfanyl)benzoate
CAS Number
1352750-34-5
Synonyms
  • Washington State Probe-1
Molecular Formula
C33H21NO6S2
Formula Weight
591.7
Purity
≥95%
Emission
515 nm
Excitation
465 nm
Formulation (Request formulation change)
A crystalline solid
Solubility(Learn about Variance in Solubility)
DMF: 20 mg/mlDMSO: 2 mg/ml
λmax
225 nm
SMILES
O=C(OC1=CC=C2C(OC3=C(C24C5=CC=CC=C5C(O4)=O)C=CC=C3)=C1)CO=C(OC1=CC=C2C(OC3=C(C24C5=CC=CC=C5C(O4)=O)C=CC(OC)=C3)=C1)C6=C(SSC7=NC=CC=C7)C=CC=C6
InChi Code
InChI=1S/C33H21NO6S2/c1-37-20-13-15-25-27(18-20)39-28-19-21(14-16-26(28)33(25)24-10-4-2-8-22(24)32(36)40-33)38-31(35)23-9-3-5-11-29(23)41-42-30-12-6-7-17-34-30/h2-19H,1H3
InChi Key
VHKQAUGSGQUCDU-UHFFFAOYSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
Recommended Products

Certificates of Analysis & Batch Specific Data

Provide batch numbers separated by commas to download or request available product inserts, QC sheets, certificates of analysis, data packs, and GC-MS data.

Download most recent Certificate of Analysis for this product

    1 mg

    $83

    Add

    5 mg

    $310

    Add

    10 mg

    $495

    Add
    Product Description

    WSP-1 is a reactive disulfide-containing, fluorescent probe designed to detect H2S in biological samples and cells. Through a reaction-based fluorescent turn-on strategy, WSP-1 selectively and rapidly reacts with H2S to generate benzodithiolone and a fluorophore with excitation and emission maxima of 465 and 515 nm, respectively.1

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Liu, C., Pan, J., Li, S., et al. Capture and visualization of hydrogen sulfide via a fluorescent probe. Angew. Chem. Int. Ed. Engl. 50(44), 10327-10329 (2011).

    Product Citations

    Zhou, Y., Mazur, F., Liang, K., et al. Sensitivity and selectivity analysis of fluorescent probes for hydrogen sulfide detection. Chem. Asian J. 17(5), e202101399 (2022).