ChemicalBook > CAS DataBase List > DL-ETHIONINE

DL-ETHIONINE

Product Name
DL-ETHIONINE
CAS No.
67-21-0
Chemical Name
DL-ETHIONINE
Synonyms
ETH;cn8676;nsc751;U-1434;CN 8676;NSC-751;OBA ETH;Ethionin;Aethionin;Ethionine
CBNumber
CB6165509
Molecular Formula
C6H13NO2S
Formula Weight
163.24
MOL File
67-21-0.mol
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DL-ETHIONINE Property

Melting point:
265-268 °C
Boiling point:
310℃
alpha 
[α]D20 0±0.5° (c=5, dil. HCl)
Density 
1.164
refractive index 
1.5500 (estimate)
Flash point:
142℃
storage temp. 
-20°C
solubility 
Methanol (Slightly, Heated), Water (Slightly)
pka
2.23±0.10(Predicted)
form 
Crystalline Powder or Flakes
color 
White to off-white
Water Solubility 
Soluble in water.
Merck 
14,3738
BRN 
1722529
CAS DataBase Reference
67-21-0(CAS DataBase Reference)
EPA Substance Registry System
S-Ethylhomocysteine (67-21-0)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26
WGK Germany 
3
RTECS 
ES6825200
TSCA 
Yes
HS Code 
29309090
Toxicity
The Sethyl analog of methionine. It is a carcinogen and hepatotoxic agent once proposed as an antineoplastic agent. It inhibits the incorporation of methionine and glycine into proteins and substitutes for methionine in transmethylation reactions, the ethyl group appearing in the products in place of the methyl groups of methionine (e.g., ethylcholine is formed instead of choline). Ethionine is currently used only as an experimental compound in studies of hepatotoxicity and methionine metabolism and nutrition.
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
E5139
Product name
DL-Ethionine
Purity
≥95% (TLC)
Packaging
1g
Price
$92.7
Updated
2024/03/01
Sigma-Aldrich
Product number
E5139
Product name
DL-Ethionine
Purity
≥95% (TLC)
Packaging
5g
Price
$318
Updated
2024/03/01
TCI Chemical
Product number
E0038
Product name
DL-Ethionine
Purity
>98.0%(T)
Packaging
5g
Price
$242
Updated
2024/03/01
TCI Chemical
Product number
E0038
Product name
DL-Ethionine
Purity
>98.0%(T)
Packaging
25g
Price
$845
Updated
2024/03/01
Alfa Aesar
Product number
A13154
Product name
DL-Ethionine, 98%
Packaging
1g
Price
$44.65
Updated
2024/03/01
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DL-ETHIONINE Chemical Properties,Usage,Production

Chemical Properties

Off-White Solid

Uses

antineoplastic; inhibitor DNA methylation

Uses

DL-Ethionine is used as a dietary supplement to accelerate cholangiocarcinogenesis in vivo. It is also used to induce oxidative stress in liver to study the levels and activities of anti-oxidative enzymes and compounds such as glutathione.

Definition

ChEBI: A non-proteinogenic alpha-amino acid that is methionine in which the S-methyl group is replaced by an S-ethyl group.

General Description

White crystalline flakes.

Air & Water Reactions

Slightly soluble in water.

Reactivity Profile

A synthetic thio-substituted amino acid.

Health Hazard

ACUTE/CHRONIC HAZARDS: When heated to decomposition DL-ETHIONINE emits toxic fumes of NOx and SOx.

Fire Hazard

Flash point data for DL-ETHIONINE are not available; however, DL-ETHIONINE is probably combustible.

Biochem/physiol Actions

DL-Ethionine is a racemic mixture of the anti-methylation agent L-Ethionine and its enantiomer D-Ethionine. DL-Ethionine is used as a dietary supplement to accelerate cholangiocarcinogenesis in vivo. DL-Ethionine is used to induce oxidative stress in liver to study the levels and activities of anti-oxidative enzymes and compounds such as glutathione.

Safety Profile

Mddly toxic by ingestion and intraperitoneal routes. Suspected carcinogen with experimental carcinogenic and tumorigenic data. An experimental teratogen. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of SOx and NOx.

DL-ETHIONINE Preparation Products And Raw materials

Raw materials

Preparation Products

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DL-ETHIONINE Suppliers

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J & K SCIENTIFIC LTD.
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View Lastest Price from DL-ETHIONINE manufacturers

Career Henan Chemical Co
Product
DL-ETHIONINE 67-21-0
Price
US $2.00/KG
Min. Order
1g
Purity
98%MIN
Supply Ability
ASK
Release date
2020-01-09

67-21-0, DL-ETHIONINERelated Search:

L-BUTHIONINE-(S,R)-SULFOXIMINE S-ADENOSYL-L-METHIONINE IODIDE SALT DL-BUTHIONINE-[S,R]-SULFOXIMINE D-ETHIONINE 5'-DEOXY-S-ADENOSYL-L-HOMOCYSTEINE L-ETHIONINE DL-ETHIONINE L-CYSTATHIONINE D,L-BUTHIONINE N-FORMYL-DL-ETHIONINE DL-Homocysteine S-Adenosyl-L-methionine D-CYSTATHIONINE S-BENZYL-DL-HOMOCYSTEINE L-BUTHIONINE L-BUTHIONINE SULFOXIDE DL-ETHIONINE SULFONE BOC-HOCYS(BZL)-OH

  • DL-ETHIONINE
  • DL-2-AMINO-4-(ETHYLTHIO)BUTYRIC ACID
  • S-ETHYL-DL-HOMOCYSTEINE
  • 2-AMINO-4-ETHYLMERCAPTOBUTYRIC ACID
  • 2-AMINO-4-(ETHYLTHIO) BUTYRIC ACID
  • (.+/-.)-Ethionine
  • (+-)-ethionine
  • )-Ethionine
  • Aethionin
  • Butyric acid, 2-amino-4-(ethylthio)-, DL-
  • Butyric acid, DL-2-amino-4-(ethylthio)-
  • CN 8676
  • cn8676
  • dl-2-amino-4-(ethylthio)-butyricaci
  • dl-ethionin
  • DL-Homocysteine, S-ethyl-
  • ETH
  • Ethionin
  • Ethionine
  • Ethionine, DL-
  • Ethylhomocysteine
  • Homocysteine, S-ethyl-
  • nsc751
  • NSC-751
  • s-ethyl-dl-homocystein
  • U-1434
  • DL-2-Amino-4-(ethylthio)butyric acid~S-Ethyl-DL-homocysteine
  • 2-Amino-4-(ethylthio)butanoic acid
  • DL-Ethionine,98%
  • S-Ethyl-homocysteine
  • rac-S-Ethylhomocysteine
  • DL-Ethionine,99%
  • DL-Ethionine,95%
  • DL-Ethionine,DL-2-Amino-4-(ethylthio)butyric acid
  • DL-ethionine DL-ethionine
  • DL-Ethionine&gt
  • DL-ETHIONINE USP/EP/BP
  • FLUORESCENT BRIGHTENER ETH
  • OBA ETH
  • OPTICAL BRIGHTENER ETH
  • OPTICAL BRIGHTENING AGENT ETH
  • 67-21-0
  • C12H26N2O4S2
  • C2H5SC2H4CHNH2COOH
  • C2H5SCH2CH2CHNH2COOH
  • A - H
  • Modified Amino Acids
  • Amino Acids and Peptides
  • Biochemicals and Reagents
  • BioChemical
  • Amino Acids 13C, 2H, 15N
  • Amino acids methyl、ethyl、t-butyl series
  • Amino Acids & Derivatives
  • Sulfur & Selenium Compounds
  • Sulphur Derivatives