A potent PDE4D inhibitor
Technical Support & Resources

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.

CP 671,305

Item No. 26743

Technical Information
Formal Name
(2R)-2-[4-[[[[2-(1,3-benzodioxol-5-yloxy)-3-pyridinyl]carbonyl]amino]methyl]-3-fluorophenoxy]-propanoic acid
CAS Number
445295-04-5
Molecular Formula
C23H19FN2O7
Formula Weight
Purity
≥98%
Formulation
A crystalline solid
DMF: 50 mg/mlDMSO: 25 mg/mlEthanol: 3 mg/mlPBS (pH 7.2): 2 mg/ml
λmax
279 nm
SMILES
OC([C@@H](C)OC1=CC(F)=C(CNC(C2=CC=CN=C2OC3=CC=C(OCO4)C4=C3)=O)C=C1)=O
InChi Code
InChI=1S/C23H19FN2O7/c1-13(23(28)29)32-15-5-4-14(18(24)9-15)11-26-21(27)17-3-2-8-25-22(17)33-16-6-7-19-20(10-16)31-12-30-19/h2-10,13H,11-12H2,1H3,(H,26,27)(H,28,29)/t13-/m1/s1
InChi Key
CNIGFESSDPOCKS-CYBMUJFWSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Wet ice 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.

    Add

    Add

    Add

    Cayman Chemical
    Neutrophil Biology Wall Poster

    Explore how neutrophils shape the immune response in health and disease. This poster highlights neutrophil pathogen defense mechanisms, including phagocytosis, degranulation, and NETosis, as well as neutrophil roles in inflammation and NET-associated pathologies.

    DOWNLOAD NOW
    Product Description

    CP 671,305 is a potent inhibitor of phosphodiesterase 4D (PDE4D; IC50 = 3 nM).1 It is selective for PDE4D over PDE4A, -B, and -C (IC50s = 310, 287, and 3,858 nM, respectively), as well as over PDE1-3 and 5 (IC50s = >5,000 nM for all). CP 671,305 inhibits release of leukotriene E4 (LTE4; Item No. 20410) from eosinophils (IC50 = 52 nM) and LTB4 (Item No. 20110) from neutrophils (IC50 = 106 nM). In vivo, CP 671,305 inhibits antigen-induced pulmonary eosinophil influx in cynomolgus monkeys in a dose-dependent manner.

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Kalgutkar, A.S., Choo, E., Taylor, T.J., et alDisposition of CP-671, 305, a selective phosphodiesterase 4 inhibitor in preclinical species. Xenobiotica 34(8), 755-770 (2004).