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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5,986 – 6,000 of 36,055 results

5,986

STA PHARMACEUTICAL US LLC Fmoc-N-Me-L-Tert-Leucine | 1 g | CAS 1172579-62-2 | MDL MFCD27952009

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

Specifications
- CAS: 1172579-62-2
- MDL: MFCD27952009
- InChIKey: IMZRODMJJYKXHI-LJQANCHMSA-N
- Molecular Weight: 367.445
- Molecular Formula: C22H25NO4
- Purity: ≥95%
- Container Type: 15 mL HDPE
- Pack Size: 1 g
- Net Weight: 1 g
- Gross Weight: 7.8 g
- Commodity Code: 29242970
- Country Of Origin: China
- IUPAC: (S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)(methyl)amino)-3,3-dimethylbutanoic acid
- SMILES: CC(C)([C@H](N(C(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)C)C(O)=O)C

Pricing & Availability

5,987

Medchemexpress LLC Boc-Leu-Gly-Arg-AMC | 65147-09-3 | MFCD03788152 | 50 mg

Pricing & Availability

5,988

Medchemexpress LLC L-Leucine-7-amido-4-methylcoumarin hydrochloride | 62480-44-8 | 99.98% | 324.80 | 25 MG

L-Leucine-7-amido-4-methylcoumarin (Leu-AMC) hydrochloride is a bright blue fluorogenic peptidyl substrate for LAP3 (leucine aminopeptidase). It is utilized for leucine aminopeptidase inhibition assays in vitro.

Bright blue fluorogenic peptidyl substrate
Utilized for LAP3 (leucine aminopeptidase)
Can be used for leucine aminopeptidase inhibition assays in vitro
Hydrolyzed 7-amino-4-methylcoumarin (AMC) can be measured using a fluorescence spectrophotometer (Ex/Em=365/440 nm)

Pricing & Availability

5,989

STA PHARMACEUTICAL US LLC N-Fmoc-N-(3-buten-1-yl)-L-leucine | 5 g | CAS 1188391-88-9 | InChIKey PHBUOMPDTGHXAT-QHCPKHFHSA-N

N-Fmoc-N-(3-buten-1-yl)-L-leucine is a Amino Acid reagent (Subcategory: Leu) sold by WuXi TIDES. Offered in 5 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 1188391-88-9
- MDL: No data
- InChIKey: PHBUOMPDTGHXAT-QHCPKHFHSA-N
- Molecular Weight: 407.51
- Molecular Formula: C25H29NO4
- 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: N-(((9H-fluoren-9-yl)methoxy)carbonyl)-N-(but-3-en-1-yl)-L-leucine
- SMILES: C=CCCN([C@H](C(O)=O)CC(C)C)C(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O

Pricing & Availability

5,990

Medchemexpress LLC Fmoc-L-photo-leucine | 1360651-24-6 | MFCD31380715 | 99.7% | 365.38 g·mol⁻¹ | C20H19N3O4 | 100 MG

Fmoc-L-photo-leucine is an Fmoc-protected leucine derivative containing a photoreactive diazirine moiety that enables covalent photo-crosslinking when incorporated into peptides or proteins. It is supplied as a high-purity solid for use in solid-phase peptide synthesis, site-specific incorporation into proteins, and photoaffinity labeling to study protein-ligand and protein-protein interactions.

Contains diazirine photoreactive group for UV-activated crosslinking.
Suitable for solid-phase peptide synthesis and chemical incorporation.
Enables photoaffinity labeling and mapping of interaction sites.
High purity for analytical and preparative applications.
Soluble in DMSO; ultrasonic assistance recommended.
Stable when stored at -20°C under inert atmosphere.

Pricing & Availability

5,991

STA PHARMACEUTICAL US LLC Fmoc-4,5-Dehydro-L-Leu-OH | 50 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 50 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: 250 mL HDPE
- Pack Size: 50 g
- Net Weight: 50 g
- Gross Weight: 89.8 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

5,992

Medchemexpress LLC (±)-Leucine (DL-Leucine) | 328-39-2 | 99.95% | 50 G

(±)-Leucine (DL-Leucine) is an isomer of Leucine that acts as a chemosterilant and dietary additive. It has been shown to inhibit the growth of *Escherichia coli* HfrH by 92.08%. The product is a solid and appears white to off-white. It has a molecular weight of 131.17 and a formula of C6H13NO2.

Inhibits the growth of *Escherichia coli* HfrH
Chemosterilant and dietary additive
White to off-white solid appearance

Pricing & Availability

5,993

eMolecules 312624-65-0 | FMOC-ALFA-ME-LEU-OH | AstaTech | MFCD08458572 | 367.445 | C22H25NO4 | 97.000 | CC(C)C[C@](C)(NC(=O)OCC1c2ccccc2-c2ccccc12)C(O)=O | 0.25g | 434268875

FMOC-ALFA-ME-LEU-OH | AstaTech | 312624-65-0 | MFCD08458572 | 367.445 | C22H25NO4 | 97.000 | CC(C)C[C@](C)(NC(=O)OCC1c2ccccc2-c2ccccc12)C(O)=O | 0.25g | 434268875

Pricing & Availability

5,994

Medchemexpress LLC N-Boc-L-tert-Leucine | 62965-35-9 | 99.6% | C11H21NO4 | 500 G

N-Boc-L-tert-Leucine is a leucine derivative recognized as an ergogenic dietary substance. It influences the secretion of anabolic hormones, supports fuel supply during exercise, enhances mental performance during stress-related tasks, and helps prevent exercise-induced muscle damage.

Leucine derivative
Influences anabolic hormone secretion
Supports fuel supply during exercise
Enhances mental performance
Prevents exercise-induced muscle damage

Pricing & Availability

5,995

eMolecules 62965-35-9 | N-Boc-L-tert-leucine | Accela ChemBio (ASD)231.292 | C11H21NO4 | 98.000 | CC(C)(C)OC(=O)N[C@H](C(O)=O)C(C)(C)C | 100g | 445405938

N-Boc-L-tert-leucine | Accela ChemBio (ASD) | 62965-35-9231.292 | C11H21NO4 | 98.000 | CC(C)(C)OC(=O)N[C@H](C(O)=O)C(C)(C)C | 100g | 445405938

Pricing & Availability

5,996

Ambeed AMBEED

5000884879 FMOC-NLE-OH 25G

Pricing & Availability

5,997

Apexbio Technology LLC Fmoc-Cys(Trt)-OH 103213-32-7 25g

Fmoc-Cys(Trt)-OH (CAS 103213-32-7) is a cysteine derivative commonly used in Fmoc-based solid-phase peptide synthesis The compound features a cysteine residue with its thiol group protected by a trityl (Trt) group and the amino group transiently masked by a fluorenylmethyloxycarbonyl (Fmoc) group During peptide assembly standard deprotection and coupling protocols enable stepwise peptide elongation After synthesis mild acidic conditions selectively remove the Trt group to yield free thiols facilitating disulfide bond formation Based on these properties Fmoc-Cys(Trt)-OH is extensively applied to the synthesis of cyclic peptides disulfide-constrained peptide analogs and therapeutically relevant proteins with defined disulfide linkages

Pricing & Availability

5,998

eMolecules 347187-29-5 | [(tert-Butoxycarbonyl)amino](pyridin-3-yl)acetic acid | Combi-Blocks | MFCD02683173 | 252.270 | C12H16N2O4 | 97.000 | CC(C)(C)OC(=O)NC(C(O)=O)c1cccnc1 | 1g | 232335763

[(tert-Butoxycarbonyl)amino](pyridin-3-yl)acetic acid | Combi-Blocks | 347187-29-5 | MFCD02683173 | 252.270 | C12H16N2O4 | 97.000 | CC(C)(C)OC(=O)NC(C(O)=O)c1cccnc1 | 1g | 232335763

Pricing & Availability

5,999

STA PHARMACEUTICAL US LLC (R)-1-(((9H-fluoren-9-yl)methoxy)carbonyl)-2-allylpyrrolidine-2-carboxylic acid | 50 g | CAS 1631046-97-3 | InChIKey ZZYQUDUWULJEHG-QHCPKHFHSA-N

(R)-1-(((9H-fluoren-9-yl)methoxy)carbonyl)-2-allylpyrrolidine-2-carboxylic acid is a Amino Acid reagent (Subcategory: Alkenyl AA) sold by WuXi TIDES. Offered in 50 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 1631046-97-3
- MDL: No data
- InChIKey: ZZYQUDUWULJEHG-QHCPKHFHSA-N
- Molecular Weight: 377.44
- Molecular Formula: C23H23NO4
- Purity: ≥95%
- Container Type: 250 mL HDPE
- Pack Size: 50 g
- Net Weight: 50 g
- Gross Weight: 89.8 g
- Commodity Code: 29339980
- Country Of Origin: China
- IUPAC: (R)-1-(((9H-fluoren-9-yl)methoxy)carbonyl)-2-allylpyrrolidine-2-carboxylic acid
- SMILES: C=CC[C@]1(CCCN1C(OCC2C3=CC=CC=C3C4=CC=CC=C42)=O)C(O)=O

Pricing & Availability

6,000

eMolecules 2411590-74-2 | N-Fmoc-N-methyl-D-homophenylalanine | Acrotein ChemBio Inc.415.489 | C26H25NO4 | 97.000 | CN([C@H](CCc1ccccc1)C(O)=O)C(=O)OCC1c2ccccc2-c2ccccc12 | 0.25g | 570931532

N-Fmoc-N-methyl-D-homophenylalanine | Acrotein ChemBio Inc. | 2411590-74-2415.489 | C26H25NO4 | 97.000 | CN([C@H](CCc1ccccc1)C(O)=O)C(=O)OCC1c2ccccc2-c2ccccc12 | 0.25g | 570931532

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Amino Acids

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Medchemexpress LLC Boc-Leu-Gly-Arg-AMC | 65147-09-3 | MFCD03788152 | 50 mg Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC L-Leucine-7-amido-4-methylcoumarin hydrochloride | 62480-44-8 | 99.98% | 324.80 | 25 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Fmoc-L-photo-leucine | 1360651-24-6 | MFCD31380715 | 99.7% | 365.38 g·mol⁻¹ | C20H19N3O4 | 100 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC (±)-Leucine (DL-Leucine) | 328-39-2 | 99.95% | 50 G Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC N-Boc-L-tert-Leucine | 62965-35-9 | 99.6% | C11H21NO4 | 500 G Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Apexbio Technology LLC Fmoc-Cys(Trt)-OH 103213-32-7 25g Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More