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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4,966 – 4,980 of 35,791 results

4,966

STA Pharmaceutical Fmoc-DL-beta-Leu | 5 g | CAS 282524-93-0 | MDL MFCD01863209

Fmoc-DL-beta-Leu is a Amino Acid reagent (Subcategory: Beta AA) sold by WuXi TIDES. Offered in 5 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 282524-93-0
- MDL: MFCD01863209
- InChIKey: KFDMTAMWOIQTOB-UHFFFAOYSA-N
- Molecular Weight: 353.418
- Molecular Formula: C21H23NO4
- Purity: ≥95%
- Container Type: 30 mL HDPE
- Pack Size: 5 g
- Net Weight: 5 g
- Gross Weight: 16.5 g
- Commodity Code: 29242970
- Country Of Origin: China
- IUPAC: 3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-methylpentanoic acid
- SMILES: CC(C)C(CC(O)=O)NC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O

Pricing & Availability

4,967

STA Pharmaceutical Fmoc-4,5-Dehydro-L-Leu-OH | 5 g | CAS 87720-55-6 | MDL MFCD00237651

Fmoc-4,5-Dehydro-L-Leu-OH is a Amino Acid reagent (Subcategory: Alkenyl AA) sold by WuXi TIDES. Offered in 5 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 87720-55-6
- MDL: MFCD00237651
- InChIKey: YUPPKUMKKSBZRL-IBGZPJMESA-N
- Molecular Weight: 351.402
- Molecular Formula: C21H21NO4
- Purity: ≥95%
- Container Type: 30 mL HDPE
- Pack Size: 5 g
- Net Weight: 5 g
- Gross Weight: 16.5 g
- Commodity Code: 29242970
- Country Of Origin: China
- IUPAC: (S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-methylpent-4-enoic acid
- SMILES: C=C(C)C[C@@H](C(O)=O)NC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O

Pricing & Availability

4,968

Medchemexpress LLC L-leucine-13C6, 15N | 202406-52-8 | 99.9% | 138.12 g/mol | 13C6H1315NO2 | 10 MG

L-leucine-13C6,15N is the 13C- and 15N-labeled form of the essential branched-chain amino acid L-leucine, supplied as a high-purity stable isotope powder for use as a tracer and internal standard in quantitative NMR, GC-MS, and LC-MS studies. The material supports metabolic and pharmacokinetic research, including studies of mTOR signaling, and has defined storage recommendations for powder and solutions.

13C6 and 15N labeled leucine.
High purity (99.9%).
Supplied as a powder suitable for tracer and quantitative analysis.
Compatible with NMR, GC-MS, and LC-MS workflows.
Available in small research sizes (e.g., 1 mg, 5 mg, 10 mg).
Storage: powder at -20°C for long-term; in solvent at -80°C for extended storage.

Pricing & Availability

4,969

Medchemexpress LLC Boc-D-norleucine (Boc-D-Nle-OH) | 55674-63-0 | 98.0% | 231.29 | 10 G

Boc-D-norleucine (Boc-D-Nle-OH) is a leucine derivative that is utilized in peptide synthesis. It is intended for research use only and is not sold to patients.

Leucine derivative
Can be used for peptide synthesis
Available in various quantities from 1g to 100g

Pricing & Availability

4,970

eMolecules 869-19-2 | Glycyl-L-leucine | Combi-Blocks | MFCD00008127 | 188.227 | C8H16N2O3 | 95.000 | CC(C)C[C@H](NC(=O)CN)C(O)=O | 1g | 117565484

Glycyl-L-leucine | Combi-Blocks | 869-19-2 | MFCD00008127 | 188.227 | C8H16N2O3 | 95.000 | CC(C)C[C@H](NC(=O)CN)C(O)=O | 1g | 117565484

Pricing & Availability

4,971

Cayman Chemical L-Leu-AMC (hydrochloride), Purity: ≥98%, CAS: 62480-44-8, 100 mg

A fluorogenic substrate for leucine aminopeptidase; AMC is released upon enzymatic cleavage by leucine aminopeptidase and its fluorescence can be used to quantify leucine aminopeptidase activity; ex/em = 340-360/440-460 nm, respectively

Pricing & Availability

4,972

STA Pharmaceutical Fmoc-L-Leu-L-Ser[PSI(Me,Me)Pro]-OH | 25 g | CAS 339531-50-9 | MDL MFCD03490501

Fmoc-L-Leu-L-Ser[PSI(Me,Me)Pro]-OH is a Amino Acid reagent (Subcategory: Pseudo AA) sold by WuXi TIDES. Offered in 25 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 339531-50-9
- MDL: MFCD03490501
- InChIKey: BUYLKVIICSUHDX-GOTSBHOMSA-N
- Molecular Weight: 480.561
- Molecular Formula: C27H32N2O6
- Purity: ≥95%
- Container Type: 125 mL HDPE
- Pack Size: 25 g
- Net Weight: 25 g
- Gross Weight: 54.3 g
- Commodity Code: 29349990
- Country Of Origin: China
- IUPAC: (S)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)-L-leucyl)-2,2-dimethyloxazolidine-4-carboxylic acid
- SMILES: CC(C)C[C@@H](C(N1[C@@H](COC1(C)C)C(O)=O)=O)NC(OCC2C3=CC=CC=C3C4=CC=CC=C42)=O

Pricing & Availability

4,973

STA Pharmaceutical Fmoc-(S)-2-(Aminomethyl)-4-methylpentanoic acid | 100 g | CAS 193887-45-5 | MDL MFCD07372888

Fmoc-(S)-2-(Aminomethyl)-4-methylpentanoic acid is a Amino Acid reagent (Subcategory: Unusual AA) sold by WuXi TIDES. Offered in 100 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 193887-45-5
- MDL: MFCD07372888
- InChIKey: ONRQUNUKPSDFFF-HNNXBMFYSA-N
- Molecular Weight: 367.445
- Molecular Formula: C22H25NO4
- Purity: ≥95%
- Container Type: 500 mL HDPE
- Pack Size: 100 g
- Net Weight: 100 g
- Gross Weight: 160.5 g
- Commodity Code: 29242970
- Country Of Origin: China
- IUPAC: (S)-2-(((((9H-fluoren-9-yl)methoxy)carbonyl)amino)methyl)-4-methylpentanoic acid
- SMILES: O=C(O)[C@H](CNC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)CC(C)C

Pricing & Availability

4,974

eMolecules 1188-21-2 | N-Acetyl-L-leucine | Accela ChemBio (ASD) | MFCD00065131 | 173.212 | C8H15NO3 | 98.000 | CC(C)C[C@H](NC(C)=O)C(O)=O | 10g | 444757105

N-Acetyl-L-leucine | Accela ChemBio (ASD) | 1188-21-2 | MFCD00065131 | 173.212 | C8H15NO3 | 98.000 | CC(C)C[C@H](NC(C)=O)C(O)=O | 10g | 444757105

Pricing & Availability

4,975

STA Pharmaceutical Fmoc-(R)-2-(Aminomethyl)-4-methylpentanoic acid | 50 g | CAS 1018899-99-4 | MDL MFCD07372889

Fmoc-(R)-2-(Aminomethyl)-4-methylpentanoic acid is a Amino Acid reagent (Subcategory: Beta AA) sold by WuXi TIDES. Offered in 50 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 1018899-99-4
- MDL: MFCD07372889
- InChIKey: ONRQUNUKPSDFFF-OAHLLOKOSA-N
- Molecular Weight: 367.445
- Molecular Formula: C22H25NO4
- Purity: ≥95%
- Container Type: 250 mL HDPE
- Pack Size: 50 g
- Net Weight: 50 g
- Gross Weight: 89.8 g
- Commodity Code: 29242970
- Country Of Origin: China
- IUPAC: (R)-2-(((((9H-fluoren-9-yl)methoxy)carbonyl)amino)methyl)-4-methylpentanoic acid
- SMILES: CC(C)C[C@H](CNC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)C(O)=O

Pricing & Availability

4,976

Apexbio Technology LLC Fmoc-Leu-OH 35661-60-0 100g

Fmoc-Leu-OH (CAS 35661-60-0) is a small-molecule agonist targeting peroxisome proliferator-activated receptor gamma (PPAR ) It is designed to selectively activate PPAR signaling thereby modulating metabolic pathways related to insulin sensitivity and adipogenesis Fmoc-Leu-OH exerts its biological activity through controlled activation of PPAR In experimental animal models including high-fat diet-induced insulin resistance and diabetic db/db mice Fmoc-Leu-OH improves insulin sensitivity and induces lower adipogenic responses compared to classical PPAR agonists Based on these pharmacological properties Fmoc-Leu-OH holds research potential in the study of metabolic syndrome and PPAR -mediated therapeutic mechanisms

Pricing & Availability

4,977

STA Pharmaceutical Fmoc-N(HMB)-L-Leu-OH | 50 g | CAS 148515-81-5 | InChIKey PJUYKUVTRXNMBQ-SANMLTNESA-N

Fmoc-N(HMB)-L-Leu-OH is a Amino Acid reagent (Subcategory: Leu) sold by WuXi TIDES. Offered in 50 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 148515-81-5
- MDL: No data
- InChIKey: PJUYKUVTRXNMBQ-SANMLTNESA-N
- Molecular Weight: 489.568
- Molecular Formula: C29H31NO6
- Purity: ≥95%
- Container Type: 250 mL HDPE
- Pack Size: 50 g
- Net Weight: 50 g
- Gross Weight: 89.8 g
- Commodity Code: 29242970
- Country Of Origin: China
- IUPAC: N-(((9H-fluoren-9-yl)methoxy)carbonyl)-N-(2-hydroxy-4-methoxybenzyl)-L-leucine
- SMILES: COC1=CC=C(C(O)=C1)CN([C@H](C(O)=O)CC(C)C)C(OCC2C3=CC=CC=C3C4=C2C=CC=C4)=O

Pricing & Availability

4,978

Medchemexpress LLC N-(9-fluorenylmethoxycarbonyl)-L-leucine (13C-labeled) | 202114-53-2 | MFCD00190328 | 98.0% | 354.4 g/mol | C20(13C)H23NO4 | 10 MG

Fmoc-leucine-13C is an isotopically labeled N-(9-fluorenylmethoxycarbonyl)-L-leucine used as a protected, 13C-labeled amino acid building block for peptide synthesis and analytical applications. It provides a stable isotope tracer for mass spectrometry and structural studies, with high chemical purity suitable for research use.

Isotopically labeled with 13C for tracing and mass spectrometry.
Fmoc-protected L-leucine suitable for solid-phase peptide synthesis.
High chemical purity (≈98% by HPLC).
Molecular weight 354.4 g/mol and formula C20(13C)H23NO4.
Available in small research quantities for analytical standards and synthesis.

Pricing & Availability

4,979

Cayman Chemical L-Leucine-d10, Purity: ≥99% deuterated forms (d1-d10), CAS: 106972-44-5, 25 mg

An internal standard for the quantification of L-leucine by GC- or LC-MS

Pricing & Availability

4,980

eMolecules 1122017-35-9 | Benzyl-L-norleucine methyl ester hydrochloride | Chem-Impex271.790 | C14H22ClNO2 | 86.000 | Cl.CCCCC(NCc1ccccc1)C(=O)OC | 1g | 386893945

Benzyl-L-norleucine methyl ester hydrochloride | Chem-Impex | 1122017-35-9271.790 | C14H22ClNO2 | 86.000 | Cl.CCCCC(NCc1ccccc1)C(=O)OC | 1g | 386893945

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Amino Acids

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Medchemexpress LLC L-leucine-13C6, 15N | 202406-52-8 | 99.9% | 138.12 g/mol | 13C6H1315NO2 | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Boc-D-norleucine (Boc-D-Nle-OH) | 55674-63-0 | 98.0% | 231.29 | 10 G Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC N-(9-fluorenylmethoxycarbonyl)-L-leucine (13C-labeled) | 202114-53-2 | MFCD00190328 | 98.0% | 354.4 g/mol | C20(13C)H23NO4 | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC L-leucine-13C6, 15N | 202406-52-8 | 99.9% | 138.12 g/mol | 13C6H1315NO2 | 10 MG

Medchemexpress LLC Boc-D-norleucine (Boc-D-Nle-OH) | 55674-63-0 | 98.0% | 231.29 | 10 G

Medchemexpress LLC N-(9-fluorenylmethoxycarbonyl)-L-leucine (13C-labeled) | 202114-53-2 | MFCD00190328 | 98.0% | 354.4 g/mol | C20(13C)H23NO4 | 10 MG