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dl-ETHIONINE
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Name

dl-ETHIONINE

 EINECS N/A
CAS No. 67-21-0 Density 1.164
PSA 88.62000 LogP 1.24180
Solubility Soluble in water. Melting Point 265-268 °C
Formula C6H13 N O2 S Boiling Point 550.1oC at 760 mmHg
Molecular Weight 163.241 Flash Point 286.5oC
Transport Information N/A Appearance N/A
Safety Mildly 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. Risk Codes R40;
Molecular Structure Molecular Structure of 67-21-0 (DL-ETHIONINE) Hazard Symbols R40:Possible risks of irreversible effects.;
Synonyms

Butyricacid, 2-amino-4-(ethylthio)-, DL- (8CI); Butyric acid, a-amino-g-(ethylmercapto)- (4CI);DL-Homocysteine, S-ethyl-; (?à)-Ethionine; CN 8676; DL-2-Amino-4-(ethylthio)butyric acid; DL-Ethionine;NSC-751; S-Ethyl-DL-homocysteine; dl-Ethionine

Article Data 11

dl-ETHIONINE Chemical Properties

IUPAC: (2R)-2-azaniumyl-4-ethylsulfanylbutanoate
MF: C6H13NO2S 
MW: 163.24
EINECS: 200-647-0
MP: 265-268 °C 
General Description :White crystalline flakes
Synonyms: DL-ETHIONINE ; DL-2-AMINO-4-(ETHYLTHIO)BUTYRIC ACID ; 2-AMINO-4-ETHYLMERCAPTOBUTYRIC ACID ; 2-AMINO-4-(ETHYLTHIO) BUTYRIC ACID ; S-ETHYL-DL-HOMOCYSTEINE ; (.+/-.)-Ethionine;(+-)-ethionine ;)-Ethionine
Storage temp:  20°C
 dl-ETHIONINE (67-21-0) ;its Boiling Point is 310.4 °C at 760 mmHg; its Vapour Pressure: 0.000133 mmHg at 25°C; its Density is 1.164 g/cm3
Index of Refraction: 1.523
Enthalpy of Vaporization: 60.62 kJ/mol
Molar Volume: 140.2 cm3 
Polarizability: 17 10-24cm3
Following is the molecular structure of  dl-ETHIONINE (67-21-0):

                   

dl-ETHIONINE Toxicity Data With Reference

1.   

otr-rat:lvr 7500 µmol/L/12W-C

   ITCSAF    In Vitro. 20 (1984),291.
2.   

otr-mus:emb 9200 µmol/L

   MUREAV    Mutation Research. 152 (1985),113.
3.   

orl-rat LDLo:5000 mg/kg

   CNREA8    Cancer Research. 26 (1966),619.
4.   

ipr-mus LD50:4250 mg/kg

   NYKZAU    Nippon Yakurigaku Zasshi. Japanese Journal of Pharmacology. 62 (1966),333.

dl-ETHIONINE Consensus Reports

EPA Genetic Toxicology Program. Reported in EPA TSCA Inventory.

dl-ETHIONINE Safety Profile

Mildly 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.
Safety Information of dl-ETHIONINE (67-21-0):
Hazard Codes  Xi
Xi :Irritant 
Risk Statements  :36/37/38 ( Irritating to eyes, respiratory system and skin  )
Safety Statements : 26 (In case of contact with eyes, rinse immediately with plenty of water and seek medical advice)
WGK Germany  :3
RTECS  :ES6825200

dl-ETHIONINE Specification

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.
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