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L-ETHIONINE

L-ETHIONINE structure

CAS No.: 13073-35-3

Chemical Name:: L-ETHIONINE

Synonyms: S-ethyl-L-homocysteine;H-ETH-OH;Nsc82393;L-ETHIONINE;l-butyricaci;L-Ethionine>L-ETHIONINE 98+%;L -ETHIONINE 99%;s-ethyl-homocystein;L-Ethionine

CBNumber:: CB9426830

Molecular Formula:: C6H13NO2S

Molecular Weight:: 163.24

MDL Number:: MFCD00002626

MOL File:: 13073-35-3.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-06-02 09:21:32

Product description	Number	Pack Size	Price
L-Ethionine ≥99% (TLC)	E1260	1g	$593.25
L-Ethionine ≥99% (TLC)	E1260	250mg	$219
L-Ethionine >98.0%(T)	E0039	100mg	$58
L-Ethionine	FE22864	0.5g	$250.75
L-Ethionine	FE22864	1g	$351.05

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L-ETHIONINE Properties

Melting point	280 °C (dec.)(lit.)
alpha	D24 +25.1°; D23 +20.1° (1N HCl) (Armstrong, Lewis)
Density	1.085 (estimate)
refractive index	22 ° (C=1, 1mol/L HCl)
storage temp.	Keep in dark place,Sealed in dry,2-8°C
solubility	Aqueous Acid (Slightly), Water (Slightly)
form	solid
Boiling point	310.4±37.0 °C(Predicted)
pka	2.23±0.10(Predicted)
color	White to Off-White
optical activity	22.068°(C=0.01g/ml 1N HCL)
Merck	14,3738
InChI	1S/C6H13NO2S/c1-2-10-4-3-5(7)6(8)9/h5H,2-4,7H2,1H3,(H,8,9)/t5-/m0/s1
InChIKey	GGLZPLKKBSSKCX-YFKPBYRVSA-N
SMILES	CCSCC[C@H](N)C(O)=O
CAS DataBase Reference	13073-35-3(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	WX1BN24WZT
EPA Substance Registry System	L-Ethionine (13073-35-3)
UNSPSC Code	12352209
NACRES	NA.26

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H315-H319-H335

Precautionary statements

P261-P264-P271-P280-P302+P352-P305+P351+P338

target organs

Respiratory system

PPE

dust mask type N95 (US), Eyeshields, Gloves

Hazard Codes

Risk Statements

36/37/38

Safety Statements

WGK Germany

RTECS

ES6825300

TSCA

TSCA listed

HS Code

2930.90.4950

Storage Class

11 - Combustible Solids

Hazard Classifications

Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

Hazardous Substances Data

13073-35-3(Hazardous Substances Data)

Toxicity

rat,LD,intraperitoneal,> 1gm/kg (1000mg/kg),LIVER: OTHER CHANGESLIVER: CHANGES IN LIVER WEIGHT,Acta Pathologica Japonica. Vol. 39, Pg. 281, 1989.

NFPA 704

	0
2		0

L-ETHIONINE price More Price(29)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	E1260	L-Ethionine ≥99% (TLC)	13073-35-3	1g	$593.25	2026-04-30	Buy
Sigma-Aldrich	E1260	L-Ethionine ≥99% (TLC)	13073-35-3	250mg	$219	2025-07-31	Buy
TCI Chemical	E0039	L-Ethionine >98.0%(T)	13073-35-3	100mg	$58	2026-04-30	Buy
Biosynth	FE22864	L-Ethionine	13073-35-3	0.5g	$250.75	2026-06-04	Buy
Biosynth	FE22864	L-Ethionine	13073-35-3	1g	$351.05	2026-06-04	Buy

Product number	Packaging	Price	Buy
E1260	1g	$593.25	Buy
E1260	250mg	$219	Buy
E0039	100mg	$58	Buy
FE22864	0.5g	$250.75	Buy
FE22864	1g	$351.05	Buy

L-ETHIONINE Chemical Properties,Uses,Production

Chemical Properties

White Solid

Uses

Ethionine-induced inhibition of protein synthesis and lowering of ATP level in the liver.

Definition

ChEBI: An S-ethylhomocysteine that has S-configuration at the chiral centre.

Biological Activity

An analog of methionine th at interferes with the normal methylation of DNA and other methylation pathways, and induces pancreatic toxicity and liver cancer. However, in animal studies, it has also been shown to act synergistically with methionine-depletion to block the growth and metastasis of methionine-dependent tumors.

Purification Methods

Likely impurities are N-acetyl-(R and S)-ethionine, S-methionine, and R-ethionine. Crystallise it from water by adding 4volumes of EtOH or 85% aqueous EtOH. It sublimes at 196-216o/0.3mm with 99.1% recovery and unracemised [Gross & Gradsky J Am Chem Soc 77 1678 1955]. [Weiss & Stekol J Am Chem Soc 73 2399 1951, Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 pp 2658, 2659 1961, Beilstein 4 IV 3194.]

L-ETHIONINE synthesis

Synthesis of L-ETHIONINE from DL-ETHIONINE

L-ETHIONINE Preparation Products And Raw materials

Raw materials

N-Acetyl-DL-ethionine S-3,6-bis(2-chloroethyl)piperazine-2,5-dione N-FORMYL-DL-ETHIONINE O-ACETYL-L-HOMOSERINE HYDROCHLORIDE DL-ETHIONINE

Nsc164657 Ethanethiol Iodoethane

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Preparation Products

2-Oxopentanoic acid

L-ETHIONINE Suppliers

Global( 127)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49979	58
career henan chemical co	+86-0371-86658258 +8613203830695	factory@coreychem.com	China	29792	58
TargetMol Chemicals Inc.	+1-781-999-5354; +17819995354	marketing@targetmol.com	United States	32466	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58
BOC Sciences	16314854226; +16314854226	inquiry@bocsci.com	United States	19853	58
Dayang Chem (Hangzhou) Co.,Ltd.	+86-0571-88938639 +8617705817739	info@dycnchem.com	China	52705	58
Hangzhou MolCore BioPharmatech Co.,Ltd.	+86-057181025280; +8617767106207	sales@molcore.com	China	49734	58
Hebei Chuanghai Biotechnology Co., Ltd	+8615531151365	mina@chuanghaibio.com	China	18126	58
PT CHEM GROUP LIMITED	+86-85511178;	peter68@ptchemgroup.com	China	35425	58
GIHI CHEMICALS CO.,LIMITED	+86-571-86217390; +8618058761490	info@gihichemicals.com	China	49969	58

Supplier	Advantage
CONIER CHEM AND PHARMA LIMITED	58
career henan chemical co	58
TargetMol Chemicals Inc.	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
BOC Sciences	58
Dayang Chem (Hangzhou) Co.,Ltd.	58
Hangzhou MolCore BioPharmatech Co.,Ltd.	58
Hebei Chuanghai Biotechnology Co., Ltd	58
PT CHEM GROUP LIMITED	58
GIHI CHEMICALS CO.,LIMITED	58

View Lastest Price from L-ETHIONINE manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2026-06-01	Ethionine 13073-35-3			99.28%	10g	TargetMol Chemicals Inc.
	2020-02-11	L-ethionine 13073-35-3	$9.80	1g	＞98%	20 tons	Career Henan Chemical Co

Ethionine
13073-35-3
$0.00
99.28%
TargetMol Chemicals Inc.

L-ethionine
13073-35-3
$9.80
＞98%
Career Henan Chemical Co

L-ETHIONINE Spectrum

L-ETHIONINE(13073-35-3)MS L-ETHIONINE(13073-35-3)¹HNMR L-ETHIONINE(13073-35-3)IR1 L-ETHIONINE(13073-35-3)IR2 L-ETHIONINE(13073-35-3)Raman

13073-35-3(L-ETHIONINE)Related Search:

S-ADENOSYL-L-METHIONINE IODIDE SALT 5'-DEOXY-S-ADENOSYL-L-HOMOCYSTEINE L-ETHIONINE S-Adenosyl-L-methionine tosylate L-CYSTATHIONINE

Spirapril FMOC-HOMOCYS(TRT)-OH L-BUTHIONINE-(S,R)-SULFOXIMINE Ethionine ester D-ETHIONINE,D(-)-ETHIONINE,D-ETHIONINE 98%

S-Adenosyl-L-methionine Disulfate Tosylate Ademetionine S-(5'-Adenosyl)-L-methionine p-toluenesulfonate salt DL-ETHIONINE N-ALPHA-T-BUTOXYCARBONYL-L-ETHIONINE,BOC-L-ETHIONINE

L-BUTHIONINE L-BUTHIONINE SULFOXIDE N-ALPHA-(9-FLUORENYLMETHOXYCARBONYL)-L-ETHIONINE,FMOC-L-ETHIONINE

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s-ethyl-homocystein s-ethyl-l-homocystein L-ETHIONINE L-2-AMINO-4-(ETHYLTHIO)BUTYRIC ACID H-ETH-OH L -ETHIONINE 99% L-ETHIONINE 98+% L-ethionine L-ethionine (S)-2-Amino-4-(ethylthio)butyric acid [S,(+)]-2-Amino-4-(ethylthio)butyric acid Butanoic acid, 2-amino-4-(ethylthio)-, (S)- Butyric acid, 2-amino-4-(ethylthio)-, L- L-Homocysteine, S-ethyl- Nsc82393 (S)-2-Amino-4-(ethylthio)butanoic acid 2-amino-4-(ethylthio)-butanoicaci alpha-amino-gamma-(ethylmercapto)butyricacid homocysteines-ethylether l-butyricaci L-Ethionine> Prinomastat Impurity 7 L-Ethionine S-ethyl-L-homocysteine 13073-35-3 C2H5SCH2CH2CHNH2CO2H BioChemical Cancer Research Carcinogens Amino acids methyl、ethyl、t-butyl series Amino Acids & Derivatives Sulfur & Selenium Compounds Amino Acids 13C, 2H, 15N Amino Acids