Ochratoxin A (CAS 303-47-9) Sigma-Aldrich

Ochratoxin A molecular structure — Molecular structure

The Sigma-Aldrich catalog lists 6 grades and pack sizes of Ochratoxin A (CAS 303-47-9). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS	303-47-9
Molecular formula	C20H18ClNO6
Molecular weight	403.81 g/mol
IUPAC name	(2S)-2-[[(3R)-5-chloro-8-hydroxy-3-methyl-1-oxo-3,4-dihydroisochromene-7-carbonyl]amino]-3-phenylpropanoic acid
Synonyms	Antibiotic 9663 · NCI-C56586 · Phenylalanine-ochratoxin A · 1779SX6LUY · RefChem:855386 · 3R14S-Ochratoxin A

Safety & Hazards (GHS) Danger

Acute toxic

Health hazard

H300 Fatal if swallowed
H351 Suspected of causing cancer
H413 May cause long lasting harmful effects to aquatic life

⚠️ For information only (source: EU CLP harmonised classification and ECHA notifications, via PubChem); not a substitute for the official Safety Data Sheet (SDS).

Catalog codes and grades

Brand	Product / grade	Code
Sigma	OCHRATOXIN A, FROM PETROMYCES ALBERT	O1877-1MG O1877-25MG O1877-5MG	Request Quote
Sigma	OCHRATOXIN A,1X1ML,50UG/ML,BENZENE/ACET	CRM46912	Request Quote
Sigma	OCHRATOXIN A-BSA CONJUGATE FROM ASPERGIL	O3007-5MG	Request Quote
Sigma	Ochratoxin A in Acetonitril , Oekanal, 1	34037-2ML-R	Request Quote

For information only; specifications and availability are confirmed at quotation. Prices are not listed.