S-(2-Carboxyethyl)-L-cysteine

Modify Date: 2025-08-25 08:39:11

S-(2-Carboxyethyl)-L-cysteine Structure
S-(2-Carboxyethyl)-L-cysteine structure
 Common Name S-(2-Carboxyethyl)-L-cysteine
CAS Number 4033-46-9 Molecular Weight 193.221
Density 1.4±0.1 g/cm3 Boiling Point 436.5±45.0 °C at 760 mmHg
Molecular Formula C6H11NO4S Melting Point 218°C
MSDS N/A Flash Point 217.8±28.7 °C

 Use of S-(2-Carboxyethyl)-L-cysteine


S-(2-Carboxyethyl)-L-cysteine (S-Carboxyethylcysteine) is a non-protein (modified) sulfur amino acid. S-(2-Carboxyethyl)-L-cysteine is present in Acacia seed. S-(2-Carboxyethyl)-L-cysteine can affect the seed’s protein use in rats. S-(2-Carboxyethyl)-L-cysteine suppresses the methionine-induced growth rate, and has a negative effect on the plasma amino acid levels in rats[1].

 Names

Name S-(2-Carboxyethyl)-L-cysteine
Synonym More Synonyms

 S-(2-Carboxyethyl)-L-cysteine Biological Activity

Description S-(2-Carboxyethyl)-L-cysteine (S-Carboxyethylcysteine) is a non-protein (modified) sulfur amino acid. S-(2-Carboxyethyl)-L-cysteine is present in Acacia seed. S-(2-Carboxyethyl)-L-cysteine can affect the seed’s protein use in rats. S-(2-Carboxyethyl)-L-cysteine suppresses the methionine-induced growth rate, and has a negative effect on the plasma amino acid levels in rats[1].
Related Catalog
In Vivo S-(2-Carboxyethyl)-L-cysteine significantly increases the plasma urea level in rats[1].
References

[1]. Falade OS, et al. S-Carboxyethylcysteine (a constituent of Acacia seed) negatively affects casein protein utilization by rats. Nutrition. 2012 Jul;28(7-8):785-92.

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Boiling Point 436.5±45.0 °C at 760 mmHg
Melting Point 218°C
Molecular Formula C6H11NO4S
Molecular Weight 193.221
Flash Point 217.8±28.7 °C
Exact Mass 193.040878
PSA 125.92000
LogP 0.08
Appearance of Characters solid
Vapour Pressure 0.0±2.2 mmHg at 25°C
Index of Refraction 1.573

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
AY4300000
CHEMICAL NAME :
Alanine, 3-((2-carboxyethyl)thio)-
CAS REGISTRY NUMBER :
4033-46-9
BEILSTEIN REFERENCE NO. :
1725406
LAST UPDATED :
199612
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C6-H11-N-O4-S
MOLECULAR WEIGHT :
193.24
WISWESSER LINE NOTATION :
QVYZ1S2VQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
520 mg/kg/52W-I
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Tumorigenic - tumors at site of application
REFERENCE :
BJCAAI British Journal of Cancer. (Macmillan Press Ltd., Houndmills, Basingstoke, Hants. RG21 2XS, UK) V.1- 1947- Volume(issue)/page/year: 15,85,1961

 Safety Information

RTECS AY4300000
HS Code 2930909090

 Synthetic Route

L-cysteine structure

L-cysteine

CAS#:52-90-4

Acrylic acid structure

Acrylic acid

CAS#:79-10-7

~73%

S-(2-Carboxyethyl)-L-cysteine Structure

S-(2-Carboxyeth...

CAS#:4033-46-9

Literature: Shiraiwa, Tadashi; Kubo, Motoki; Watanabe, Mitsuhiro; Nakatani, Hidemasa; Ohkubo, Masanori; Kurokawa, Hidemoto Bioscience, Biotechnology, and Biochemistry, 1998 , vol. 62, # 4 p. 818 - 820
β-Propiolactone structure

β-Propiolactone

CAS#:57-57-8

L-Cysteine hydrochloride anhydrous structure

L-Cysteine hydr...

CAS#:52-89-1

~%

S-(2-Carboxyethyl)-L-cysteine Structure

S-(2-Carboxyeth...

CAS#:4033-46-9

Literature: Zilkha,A.; Rappoport,S. Journal of Organic Chemistry, 1963 , vol. 28, p. 1105 - 1107
S-(2-methoxycarbonyl-ethyl)-L-cysteine structure

S-(2-methoxycar...

CAS#:1625-74-7

~%

S-(2-Carboxyethyl)-L-cysteine Structure

S-(2-Carboxyeth...

CAS#:4033-46-9

Literature: Jost,K.; Sorm,F. Collection of Czechoslovak Chemical Communications, 1971 , vol. 36, p. 2795 - 2808
L-cysteine structure

L-cysteine

CAS#:52-90-4

~%

S-(2-Carboxyethyl)-L-cysteine Structure

S-(2-Carboxyeth...

CAS#:4033-46-9

Literature: Schoeberl; Wagner Hoppe-Seyler's Zeitschrift fuer Physiologische Chemie, 1956 , vol. 304, p. 100,105 Full Text Show Details Schoeberl Chemische Berichte, 1947 , vol. 80, p. 381,384
3-Bromopropanoic acid structure

3-Bromopropanoi...

CAS#:590-92-1

L-cysteine structure

L-cysteine

CAS#:52-90-4

~%

S-(2-Carboxyethyl)-L-cysteine Structure

S-(2-Carboxyeth...

CAS#:4033-46-9

Literature: Schoeberl Chemische Berichte, 1947 , vol. 80, p. 381,384
3-Chloropropionic Acid structure

3-Chloropropion...

CAS#:107-94-8

N/A structure

N/A

CAS#:44521-10-0

~%

S-(2-Carboxyethyl)-L-cysteine Structure

S-(2-Carboxyeth...

CAS#:4033-46-9

Literature: Mamalis,P. et al. Journal of the Chemical Society, 1960 , p. 2906 - 2914
β-Propiolactone structure

β-Propiolactone

CAS#:57-57-8

L-cysteine structure

L-cysteine

CAS#:52-90-4

~%

S-(2-Carboxyethyl)-L-cysteine Structure

S-(2-Carboxyeth...

CAS#:4033-46-9

Literature: Black,D.K. Journal of the Chemical Society [Section] C: Organic, 1966 , p. 1123 - 1127
Cysteine,S-(2-carboxyethyl)- structure

Cysteine,S-(2-c...

CAS#:25635-80-7

~%

S-(2-Carboxyethyl)-L-cysteine Structure

S-(2-Carboxyeth...

CAS#:4033-46-9

CEC structure

CEC

CAS#:100429-59-2

Literature: Shiraiwa, Tadashi; Kubo, Motoki; Watanabe, Mitsuhiro; Nakatani, Hidemasa; Ohkubo, Masanori; Kurokawa, Hidemoto Bioscience, Biotechnology, and Biochemistry, 1998 , vol. 62, # 4 p. 818 - 820
L-cysteine structure

L-cysteine

CAS#:52-90-4

Water structure

Water

CAS#:7732-18-5

Acrylic acid structure

Acrylic acid

CAS#:79-10-7

~%

S-(2-Carboxyethyl)-L-cysteine Structure

S-(2-Carboxyeth...

CAS#:4033-46-9

Literature: Schoeberl; Wagner Hoppe-Seyler's Zeitschrift fuer Physiologische Chemie, 1956 , vol. 304, p. 100,105 Full Text Show Details Schoeberl Chemische Berichte, 1947 , vol. 80, p. 381,384

 Customs

HS Code 2930909090
Summary 2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

 Synonyms

S-(2-Carboxyethyl)-L-cysteine
(2R)-2-amino-3-(2-carboxyethylsulfanyl)propanoic acid
S-Carboxyethyl-L-cysteine
3-[(2-Carboxyethyl)thio]alanine
L-3-((2-Carboxyethyl)thio)alanine
L-Cysteine, S-(2-carboxyethyl)-
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