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API Reference Standards

Ochratoxin A

Reference StandardAvailable on request

Ochratoxin A (CAS 303-47-9) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-033957.

Pack sizes
Ochratoxin A chemical structure
CAS number303-47-9
FormulaC20H18ClNO6
Molar mass403.8 g/mol
Physical formSolid
HS code38229090
InChIKeyRWQKHEORZBHNRI-BMIGLBTASA-N
IUPAC name(2S)-2-[[(3R)-5-chloro-8-hydroxy-3-methyl-1-oxo-3,4-dihydroisochromene-7-carbonyl]amino]-3-phenylpropanoic acid

About Ochratoxin A

Ochratoxin A belongs to the Ochratoxin a reference-standard family in the Zemixal catalogue. For your records (Reference Standard), the material is defined by CAS 303-47-9, formula C20H18ClNO6 and molar mass 403.8 g/mol. It is handled as a solid.

Common uses in the lab and plant

  • Identification & assay
  • Method development & validation
  • QC reference material

Storage and safety notes

It carries the GHS signal word Danger (H300, H319, H330 and H351), so wear gloves and eye protection and work with good ventilation.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. You receive a certificate of analysis with characterisation data with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Ochratoxin a

See every impurity, metabolite and related compound we list for this API.

Ochratoxin a standards

Typical uses

  • Identification & assay
  • Method development & validation
  • QC reference material

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Ochratoxin A
Product nameOchratoxin A
Catalogue numberZX-033957
CAS number303-47-9
IUPAC name(2S)-2-[[(3R)-5-chloro-8-hydroxy-3-methyl-1-oxo-3,4-dihydroisochromene-7-carbonyl]amino]-3-phenylpropanoic acid
Molecular formulaC20H18ClNO6
Molar mass403.8 g/mol
Exact mass403.0823
GradeReference Standard
Physical formSolid
XLogP34.7
H-bond donors / acceptors3 / 6
Topological polar surface area113 Ų
HS code38229090
InChIKeyRWQKHEORZBHNRI-BMIGLBTASA-N
SMILESC[C@@H]1CC2=C(C=C(C(=C2C(=O)O1)O)C(=O)N[C@@H](CC3=CC=CC=C3)C(=O)O)Cl
PubChem CID442530
SynonymsAntibiotic 9663, (-)-N-((5-Chloro-8-hydroxy-3-methyl-1-oxo-7-isochromanyl)carbonyl)-3-phenylalanine, Phenylalanine-ochratoxin A, N-(((3R)-5-Chloro-8-hydroxy-3-methyl-1-oxo-7-isochromanyl)carbonyl)-3-phenyl-L-alanine, Alanine, N-((5-chloro-8-hydroxy-3-methyl-1-oxo-7-isochromanyl)carbonyl)-3-phenyl-, (-)-, Alanine, N-[(5-chloro-8-hydroxy-3-methyl-1-oxo-7-isochromanyl)carbonyl]-3-phenyl-, (-)-, Phenylalanine - ochratoxin A, 3R14S-Ochratoxin A, Ochratoxin A-BSA conjugate from Aspergillus ochraceus, Ochratoxin A(OTA), Ochratoxin A from Aspergillus ochraceus

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS06 Acute toxicity
Acute toxicity
GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard

Signal word Danger

  • H300Fatal if swallowed
  • H319Causes serious eye irritation
  • H330Fatal if inhaled
  • H351Suspected of causing cancer
  • H361Suspected of damaging fertility or the unborn child
  • H413May cause long lasting harmful effects to aquatic life

Precautionary statements P203, P260, P264, P264 + P265, P270, P271, P273, P280, P284, P301 + P316, P304 + P340, P305 + P351 + P338, P316, P318, P320, P321, P330, P337 + P317, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Ochratoxin A
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Ochratoxin A

Which CAS number identifies Ochratoxin A?
Ochratoxin A is registered under CAS 303-47-9. You may also see it listed as Antibiotic 9663, (-)-N-((5-Chloro-8-hydroxy-3-methyl-1-oxo-7-isochromanyl)carbonyl)-3-phenylalanine, Phenylalanine-ochratoxin A. Our catalogue number for this item is ZX-033957.
What are the formula and molar mass of Ochratoxin A?
For Ochratoxin A, its formula is C20H18ClNO6 and its molar mass is 403.8 g/mol. The systematic (IUPAC) name is (2S)-2-[[(3R)-5-chloro-8-hydroxy-3-methyl-1-oxo-3,4-dihydroisochromene-7-carbonyl]amino]-3-phenylpropanoic acid. InChIKey RWQKHEORZBHNRI-BMIGLBTASA-N lets you match it in any structure database.
How is Ochratoxin A used in pharmaceutical QC?
Ochratoxin A is a characterised reference material linked to Ochratoxin a. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Ochratoxin A?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Ochratoxin A?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Ochratoxin A to my country?
Yes. Because Ochratoxin A is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

Other grades with CAS 303-47-9

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