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DL-Ethionine

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DL-Ethionine molecular structure
Molecular structure

The Sigma-Aldrich catalog lists 3 grades and pack sizes of DL-Ethionine (CAS 67-21-0). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS67-21-0
Molecular formulaC6H13NO2S
Molecular weight163.24 g/mol
IUPAC name2-amino-4-ethylsulfanylbutanoic acid
SynonymsAethionin · Ethionine, DL- · 2-Amino-4-(ethylthio)butyric acid · DL-2-Amino-4-(ethylthio)butyric acid · (+-)-Ethionine · Butyric acid, 2-amino-4-(ethylthio)-, DL-
Safety & Hazards (GHS) Warning
Irritant Irritant
  • H315 Causes skin irritation
  • H319 Causes serious eye irritation
  • H335 May cause respiratory irritation

⚠️ 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 DL-ETHIONINE E5139-1G
E5139-25G
E5139-5G		 Request Quote

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