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β-Amanitin from Amanita phalloides_Molecular_structure_CAS_21150-22-1)
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β-Amanitin from Amanita phalloides

Catalog No. A1304 Name Sigma Aldrich
CAS Number 21150-22-1 Website http://www.sigmaaldrich.com
M. F. C39H53N9O15S Telephone 1-800-521-8956
M. W. 919.95442 Fax
Purity ~90% (HPLC) Email
Storage Chembase ID: 132326


IUPAC name
2-[34-(butan-2-yl)-13-(3,4-dihydroxybutan-2-yl)-8,22-dihydroxy-2,5,11,14,27,30,33,36,39-nonaoxo-27λ4-thia-3,6,12,15,25,29,32,35,38-nonaazapentacyclo[,10.018,26.019,24]nonatriaconta-18(26),19,21,23-tetraen-4-yl]acetic acid
IUPAC Traditional name


EC Number 244-244-8
PubChem SID 24890528
CAS Number 21150-22-1
MDL Number MFCD00151212


Purity ~90% (HPLC)
GHS Pictograms GHS06
GHS Signal Word Danger
GHS Hazard statements H300-H310-H330
European Hazard Symbols Highly toxic Highly toxic (T+)
GHS Precautionary statements P260-P264-P280-P284-P302 + P350-P310
RID/ADR UN 3462 6.1/PG 1
Risk Statements 26/27/28
RTECS NJ8324000
Safety Statements 7-28-36/37/39-45
Storage Temperature -20°C
Hazard Class 6.1
UN Number 3462
Packing Group 1
German water hazard class 3


Description (English)
Biochem/physiol Actions
Toxic constituent of the mushroom, Amanita phalloides, inhibits eukaryotic RNA polymerase II and III, but not RNA polymerase I or bacterial RNA polymerase. Inhibits mammalian protein synthesis.