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4-Hydroxyindole-3-acetic Acid

Item No. 33632

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Synonyms
Synonyms
  • 4-HIAA
  • 41-IIAA
  • 4-hydroxy Indole-3-yl-acetic Acid
Technical Information
Formal Name
4-hydroxy-1H-indole-3-acetic acid
CAS Number
56395-08-5
Molecular Formula
C10H9NO3
Formula Weight
191.2
Purity
≥98%
Formulation
A crystalline solid
Solubility(Learn about Variance in Solubility)
DMF: 25 mg/mlDMSO: 25 mg/mlEthanol: 25 mg/mlPBS (pH 7.2): 0.1 mg/ml
λmax
223, 268 nm
SMILES
O=C(CC1=CNC2=C1C(O)=CC=C2)O
InChi Code
InChI=1S/C10H9NO3/c12-8-3-1-2-7-10(8)6(5-11-7)4-9(13)14/h1-3,5,11-12H,4H2,(H,13,14)
InChi Key
IGOSTOCJEXIQIA-UHFFFAOYSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Wet ice in continental US; may vary elsewhere
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    Product Description

    4-Hydroxyindole-3-acetic acid (Item No. 33632) is an analytical reference standard categorized as a tryptamine.1,2 4-Hydroxyindole-3-acetic acid is a metabolite of psilocybin (Item Nos. 9003134 | 14041) and psilocin (Item Nos. 9003135 | 11864 | 36971).1,2 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. Kolaczynska, K.E., Liechti, M.R., and Duthaler, U. Development and validation of an LC-MS/MS method for the bioanalysis of psilocybin’s main metabolites, psilocin and 4-hydroxyindole-3-acetic acid, in human plasma. J. Chromatogr. B. Analyt. Technol. Biomed. Life Sci. 1164, 122486 (2021).

    2. Passie, T., Seifert, J., Schneider, U., et al. The pharmacology of psilocybin. Addict. Biol. 7(4), 357-364 (2002).