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.

4-hydroxy EPT (hemifumarate)

Item No. 27006

Product Insert (PDF)GC-MS (PDF)Safety Data Sheet (SDS) (PDF)
Synonyms
Synonyms
  • 4-HO EPT
  • 4-hydroxy-N-ethyl-N-Propyltryptamine
Technical Information
Formal Name
3-[2-(ethylpropylamino)ethyl]-1H-indol-4-ol, 2E-butenedioate (2:1)
Molecular Formula
C15H22N2O • 1/2C4H4O4
Formula Weight
304.4
Purity
≥98%
Formulation
A crystalline solid
Solubility(Learn about Variance in Solubility)
DMSO: slightly solublePBS (pH 7.2): slightly soluble
λmax
223 nm
SMILES
CCN(CCC)CCC1=CNC2=CC=CC(O)=C21.OC(/C=C/C(O)=O)=O.CCN(CCC)CCC3=CNC4=CC=CC(O)=C43
InChi Code
InChI=1S/2C15H22N2O.C4H4O4/c2*1-3-9-17(4-2)10-8-12-11-16-13-6-5-7-14(18)15(12)13;5-3(6)1-2-4(7)8/h2*5-7,11,16,18H,3-4,8-10H2,1-2H3;1-2H,(H,5,6)(H,7,8)/b;;2-1+
InChi Key
BDVHDZSVBRTYRN-WXXKFALUSA-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

    $90

    Add

    5 mg

    $392

    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

    4-hydroxy EPT (hemifumarate) (Item No. 27006) is an analytical reference standard categorized as a tryptamine.1 4-hydroxy EPT induces the head-twitch response (HTR) in mice, indicating hallucinogenic potential. 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. Klein, A.K., Chatha, M., Laskowski, L.J., et al. Investigation of the structure−activity relationships of psilocybin analogues. ACS Pharmacol. Transl. Sci. 4(2), 533-542 (2020).