An Analytical Reference Standard
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.

Technical Information
Formal Name
2-(2-chlorophenyl)-1-(1-pentyl-1H-indol-3-yl)-ethanone
CAS Number
864445-54-5
Molecular Formula
C21H22ClNO
Formula Weight
Purity
≥98%
Formulation
A crystalline solid
DMF: 10 mg/mlDMSO: 5 mg/ml
λmax
212, 246, 304 nm
SMILES
CCCCCN1C=C(C(CC2=C(Cl)C=CC=C2)=O)C3=CC=CC=C31
InChi Code
InChI=1S/C21H22ClNO/c1-2-3-8-13-23-15-18(17-10-5-7-12-20(17)23)21(24)14-16-9-4-6-11-19(16)22/h4-7,9-12,15H,2-3,8,13-14H2,1H3
InChi Key
YDINKDBAZJOSLV-UHFFFAOYSA-N
Regulatory Information
DEA Schedule
I
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.

    Add

    Add

    Add

    Cayman Chemical
    Cayman Spectral Library

    Our free, searchable, GC-MS spectral database contains 70eV EI mass spectral data of 2,000+ of Cayman’s forensic drug standards.

    DOWNLOAD THE DATABASE
    Product Description

    JWH 203 is an analgesic chemical from the phenylacetylindole family that acts as a cannabinoid (CB) agonist with Ki values of 8.0 and 7.0 nM at the CB1 and CB2 receptors, respectively.1 Similar to the related 2'-methoxy compound JWH 250, JWH 203 has a phenylacetyl group in place of the naphthoyl ring used in most aminoalkylindole CB compounds. Compared to JWH 250, JWH 203 displays slightly more potent binding affinities for the CB1 and CB2 receptors (JWH 250 Kis = 11 and 33 nM, respectively).1 This product is intended for research and forensic applications.

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Huffman, J.W., Szklennik, P.V., Almond, A., et al1-Pentyl-3-phenylacetylindoles, a new class of cannabimimetic indoles. Bioorg. Med. Chem. Lett. 15(18), 4110-4113 (2005).

    Product Citations

    Ciolino, L.A. Quantitation of synthetic cannabinoids in plant materials using high performance liquid chromatography with UV detection (validated method). J. Forensic Sci. 60(5), 1171-1181 (2015).