A fungal metabolite
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Kotanin A

Item No. 24917

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
(8S)-4,4',7,7'-tetramethoxy-5,5'-dimethyl-[8,8'-bi-2H-1-benzopyran]-2,2'-dione
CAS Number
27909-08-6
Synonyms
  • (+)-Kotanin
Molecular Formula
C24H22O8
Formula Weight
438.4
Purity
≥95%
Formulation (Request formulation change)
A solid
Solubility(Learn about Variance in Solubility)
DMF: solubleDMSO: solubleEthanol: solubleMethanol: soluble
SMILES
O=C1C=C(OC)C2=C(C(C3=C(OC)C=C(C)C(C(OC)=C4)=C3OC4=O)=C(OC)C=C2C)O1
InChi Code
InChI=1S/C24H22O8/c1-11-7-13(27-3)21(23-19(11)15(29-5)9-17(25)31-23)22-14(28-4)8-12(2)20-16(30-6)10-18(26)32-24(20)22/h7-10H,1-6H3
InChi Key
CSJOUDOXDHMIAH-UHFFFAOYSA-N
Origin
Fungi/Aspergillus sp.
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    500 µg

    $164

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    2.5 mg

    $688

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    Product Description

    Kotanin A is a fungal metabolite produced by A. glaucus (A. clavatus), A. alliaceus, and A. niger.1,2 It is toxic to day-old chicks (LD100 = 62.5 mg/kg) but has no effect in rats.1

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Cutler, H.G., Crumley, F.G., Cox, R.H., et al. Orlandin: A nontoxic fungal metabolite with plant growth inhibiting properties. J. Agric. Food Chem. 27(3), 592-595 (1979).

    2. Buchi, G., Klaubert, D.H., Shank, R.C., et al. Structure and synthesis of kotanin and desmethylkotanin, metabolites of Aspergillus glaucus. The Journal of Organic Chemistry 36(8), 1143-1147 (1971).