Amino Acids

Organic compounds composed of a central carbon atom, a carboxyl group, an amino group, and a unique side chain; precursors to other molecules including proteins, hormones, and neurotransmitters.

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7,021 – 7,035 of 36,033 results

7,021

STA PHARMACEUTICAL US LLC Fmoc-L-Cys-OtBu | 1 g | CAS 139592-37-3 | MDL MFCD08458535

Fmoc-L-Cys-OtBu is a Amino Acid reagent (Subcategory: Cys) sold by WuXi TIDES. Offered in 1 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 139592-37-3
- MDL: MFCD08458535
- InChIKey: IQCNHOFZFYLKLF-UWXQCODUSA-N
- Molecular Weight: 796.994
- Molecular Formula: C44H48N2O8S2
- Purity: ≥95%
- Container Type: 15 mL HDPE
- Pack Size: 1 g
- Net Weight: 1 g
- Gross Weight: 7.8 g
- Commodity Code: 29309016
- Country Of Origin: China
- IUPAC: di-tert-butyl 3,3'-disulfanediyl(2R,2'R)-bis(2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)propanoate)
- SMILES: CC(OC([C@H](CSSC[C@@H](C(OC(C)(C)C)=O)NC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)NC(OCC4C5=CC=CC=C5C6=CC=CC=C64)=O)=O)(C)C

Pricing & Availability

7,022

STA PHARMACEUTICAL US LLC Fmoc-L-Cys(PhAcm)-OH | 100 g | CAS 159680-21-4 | MDL MFCD00797550

Fmoc-L-Cys(PhAcm)-OH is a Amino Acid reagent (Subcategory: Cys) sold by WuXi TIDES. Offered in 100 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 159680-21-4
- MDL: MFCD00797550
- InChIKey: UBFAZPXACZPNQB-DEOSSOPVSA-N
- Molecular Weight: 490.574
- Molecular Formula: C27H26N2O5S
- Purity: ≥95%
- Container Type: 500 mL HDPE
- Pack Size: 100 g
- Net Weight: 100 g
- Gross Weight: 160.5 g
- Commodity Code: 29309016
- Country Of Origin: China
- IUPAC: N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-((2-phenylacetamido)methyl)-L-cysteine
- SMILES: O=C([C@H](CSCNC(CC1=CC=CC=C1)=O)NC(OCC2C3=CC=CC=C3C4=CC=CC=C42)=O)O

Pricing & Availability

7,023

Chem-Impex International, Inc. L-Cysteine hydrochloride anhydrous | 52-89-1 | MFCD00064553 | 250G

L-Cysteine hydrochloride anhydrous, 52-89-1, MFCD00064553, 250G

Pricing & Availability

7,024

Alkali Scientific L Cysteine Hydrochloride Monohydrate, 5 Kilograms

L Cysteine Hydrochloride Monohydrate, 5 kilograms, is a high-quality amino acid used extensively in biochemical research. This product serves as a source of sulfur for the synthesis of proteins, enzymes, and other molecules in the body. It is commonly used in laboratory experiments focusing on antioxidant activity, enzyme catalysis, and protein structure analysis. L Cysteine is also an important component in the production of glutathione, a major antioxidant in cells. Available in the monohydrate form, it offers stable, easy-to-handle conditions for laboratories that require bulk quantities of this critical amino acid for scientific studies.

Pricing & Availability

7,025

Alkali Scientific L Cystine, 100 G

L-Cystine (100g) is a sulfur-containing amino acid used in cell culture and biochemical research. L-Cystine plays an important role in cellular processes such as protein synthesis and the formation of disulfide bonds in proteins, contributing to the structural stability of enzymes and other proteins. This product is widely used in the growth media for cell culture and in research studies investigating the role of sulfur-containing amino acids in cellular metabolism. It is especially valuable in the study of oxidative stress, protein folding, and cellular defense mechanisms. L-Cystine is also used in the production of glutathione, a crucial antioxidant in cells.

Pricing & Availability

7,026

STA PHARMACEUTICAL US LLC Fmoc-L-Cys(StBu)-OH | 10 g | CAS 73724-43-3 | MDL MFCD00042617

Fmoc-L-Cys(StBu)-OH is a Amino Acid reagent (Subcategory: Cys) sold by WuXi TIDES. Offered in 10 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 73724-43-3
- MDL: MFCD00042617
- InChIKey: ZDUMTHLUTJOUML-IBGZPJMESA-N
- Molecular Weight: 431.565
- Molecular Formula: C22H25NO4S2
- Purity: ≥95%
- Container Type: 60 mL HDPE
- Pack Size: 10 g
- Net Weight: 10 g
- Gross Weight: 25 g
- Commodity Code: 29309016
- Country Of Origin: China
- IUPAC: N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-(tert-butylthio)-L-cysteine
- SMILES: CC(SSC[C@@H](C(O)=O)NC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)(C)C

Pricing & Availability

7,027

Medchemexpress LLC S-tert-butyl-L-cysteine hydrochloride | 2481-09-6 | MFCD00037426 | 98.0% | 213.73 g/mol | C7H16ClNO2S | 500 G

S-tert-butyl-L-cysteine hydrochloride is the hydrochloride salt of an S-tert-butyl substituted L-cysteine - an amino acid derivative used in synthetic chemistry and biochemical research. Supplied as a powder with reported purity of 98.0%, it is suitable for incorporation into peptide synthesis and studies of modified amino acids. Store powder at -20°C for long-term stability and at 4°C for shorter storage; in solution store at -80°C or -20°C depending on duration.

High purity (98.0%) for research use.
Powder form suitable for synthetic and analytical applications.
Useful as a modified amino acid in biochemical studies.
Defined storage conditions for long- and short-term stability.
Available in multiple pack sizes to support scale-up.

Pricing & Availability

7,028

Medchemexpress LLC S-1-Propenyl-L-cysteine | 52438-09-2 | 99.9% | 161.22 | 25 MG

S-1-Propenyl-L-cysteine is a stereoisomer of S-allyl-L-cysteine, extracted from garlic. It has immunomodulatory effects and reduces blood pressure in a hypertensive animal model. It exhibits antioxidative efficacy through a NO-dependent BACH1 signaling pathway and is orally active.

Immunomodulatory effects
Reduces blood pressure in a hypertensive animal model
Exhibits antioxidative efficacy through a NO-dependent BACH1 signaling pathway
It is orally active
Upregulates HMOX1
Inhibits TLR4 signaling
Reduces systolic blood pressure (SBP)
Alters histidine metabolism via the central histamine H3 receptor

Pricing & Availability

7,029

STA PHARMACEUTICAL US LLC Fmoc-L-Cys(Me)-OH | 1 g | CAS 138021-87-1 | MDL MFCD00237014

Fmoc-L-Cys(Me)-OH is a Amino Acid reagent (Subcategory: Cys) sold by WuXi TIDES. Offered in 1 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 138021-87-1
- MDL: MFCD00237014
- InChIKey: SKNJDZVHMNQAGO-KRWDZBQOSA-N
- Molecular Weight: 357.424
- Molecular Formula: C19H19NO4S
- Purity: ≥95%
- Container Type: 15 mL HDPE
- Pack Size: 1 g
- Net Weight: 1 g
- Gross Weight: 7.8 g
- Commodity Code: 29309016
- Country Of Origin: China
- IUPAC: N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-methyl-L-cysteine
- SMILES: CSC[C@@H](C(O)=O)NC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O

Pricing & Availability

7,030

Chem-Impex International, Inc. Na-Na-Bis-Z-L-cystine | 6968-11-2 | MFCD00022030 | 25G

Na-Na-Bis-Z-L-cystine, 6968-11-2, MFCD00022030, 25G

Pricing & Availability

7,031

Lkt Laboratories (+)-S-Methyl-L-cysteine-S-oxide, ≥98%, 5MG

Alliin analog found in cruciferous vegetables. CAS: 6853-87-8. Additional sizes available upon request. Ships from Saint Paul, MN.

Pricing & Availability

7,032

Cambridge Isotope Laboratories L-CYSTEINE, S-METHYL (S-METHYL-D3, 98%), 0.25 G

L-CYSTEINE, S-METHYL (S-METHYL-D3, 98%), 0.25 G

Pricing & Availability

7,033

Selleck Chemical LLC S-Methyl-L-cysteine S4786-25mg

S-Methyl-L-cysteine (S-Methylcysteine) is one of the identified number of bioactive substances in garlic that are water soluble that may exert some chemopreventive effects on chemical carcinogenesis

Pricing & Availability

7,034

Cambridge Isotope Laboratories L-CYSTEINE-N-T-BOC, S-P-MEBZ (15N, 98%), 0.25 G, 204523-23-9

L-CYSTEINE-N-T-BOC, S-P-MEBZ (15N, 98%), 0.25 G, 204523-23-9

Pricing & Availability

7,035

Medchemexpress LLC N-Acetyl-D-Cysteine 50Mg | HY-136386-50MG

N-Acetyl-D-Cysteine 50Mg

Pricing & Availability

Amino Acids

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Alkali Scientific L Cysteine Hydrochloride Monohydrate, 5 Kilograms Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Alkali Scientific L Cystine, 100 G Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC S-tert-butyl-L-cysteine hydrochloride | 2481-09-6 | MFCD00037426 | 98.0% | 213.73 g/mol | C7H16ClNO2S | 500 G Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC S-1-Propenyl-L-cysteine | 52438-09-2 | 99.9% | 161.22 | 25 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Lkt Laboratories (+)-S-Methyl-L-cysteine-S-oxide, ≥98%, 5MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Selleck Chemical LLC S-Methyl-L-cysteine S4786-25mg Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC N-Acetyl-D-Cysteine 50Mg | HY-136386-50MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More