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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5,701 – 5,715 of 36,046 results

5,701

Medchemexpress LLC (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)(methyl)amino)-4-oxo-4-(tritylamino)butanoic acid | 941296-80-6 | MFCD22200773 | 97.0% | 610.70 g·mol⁻¹ | C39H34N2O5 | 250 MG

(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)(methyl)amino)-4-oxo-4-(tritylamino)butanoic acid is an Fmoc- and Trt-protected N-methyl asparagine derivative intended as a building block for peptide chemistry. It is supplied as a solid and is used to introduce Nα-methylated asparagine residues in solid-phase peptide synthesis and peptide modification studies.

Protected N-methyl asparagine for peptide synthesis.
Includes Fmoc and trityl protecting groups compatible with standard deprotection protocols.
Enables introduction of Nα-methyl residues to modify peptide conformation.
Supplied as a solid with defined storage recommendations to preserve stability.
Suitable for research-scale synthesis and method development.

Pricing & Availability

5,702

STA PHARMACEUTICAL US LLC Fmoc-D-Phe(2,4-2Me)-OH | 10 g | CAS 1217627-86-5 | MDL MFCD06659133

Fmoc-D-Phe(2,4-2Me)-OH is a Amino Acid reagent (Subcategory: Phe) sold by WuXi TIDES. Offered in 10 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 1217627-86-5
- MDL: MFCD06659133
- InChIKey: MXBSNHLSKRVUBF-XMMPIXPASA-N
- Molecular Weight: 415.489
- Molecular Formula: C26H25NO4
- Purity: ≥95%
- Container Type: 60 mL HDPE
- Pack Size: 10 g
- Net Weight: 10 g
- Gross Weight: 25 g
- Commodity Code: 29242970
- Country Of Origin: China
- IUPAC: (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(2,4-dimethylphenyl)propanoic acid
- SMILES: CC1=CC(C)=C(C=C1)C[C@H](C(O)=O)NC(OCC2C3=CC=CC=C3C4=CC=CC=C42)=O

Pricing & Availability

5,703

STA PHARMACEUTICAL US LLC Fmoc-L-Cys(STmp)-OH | 50 g | CAS 1403834-74-1 | MDL MFCD27957369

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

Specifications
- CAS: 1403834-74-1
- MDL: MFCD27957369
- InChIKey: GADCBXMSWHDNAU-QFIPXVFZSA-N
- Molecular Weight: 541.633
- Molecular Formula: C27H27NO7S2
- Purity: ≥95%
- Container Type: 250 mL HDPE
- Pack Size: 50 g
- Net Weight: 50 g
- Gross Weight: 89.8 g
- Commodity Code: 29309016
- Country Of Origin: China
- IUPAC: N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-((2,4,6-trimethoxyphenyl)thio)-L-cysteine
- SMILES: O=C(O)[C@H](CSSC1=C(OC)C=C(OC)C=C1OC)NC(OCC2C3=C(C=CC=C3)C4=C2C=CC=C4)=O

Pricing & Availability

5,704

STA PHARMACEUTICAL US LLC Cbz-L-Dap(Fmoc)-OH | 50 g | CAS 142855-80-9 | MDL MFCD00274016

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

Specifications
- CAS: 142855-80-9
- MDL: MFCD00274016
- InChIKey: MVKNXKRRMCSKJJ-QHCPKHFHSA-N
- Molecular Weight: 460.486
- Molecular Formula: C26H24N2O6
- 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)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(((benzyloxy)carbonyl)amino)propanoic acid
- SMILES: O=C(NC[C@H](NC(OCC1=CC=CC=C1)=O)C(O)=O)OCC2C3=CC=CC=C3C4=CC=CC=C42

Pricing & Availability

5,705

STA PHARMACEUTICAL US LLC (1R,4S)-4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)cyclopent-2-enecarboxylic acid | 1 g | CAS 220497-65-4 | MDL MFCD01311756

(1R,4S)-4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)cyclopent-2-enecarboxylic acid is a Amino Acid reagent (Subcategory: Unusual AA) sold by WuXi TIDES. Offered in 1 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 220497-65-4
- MDL: MFCD01311756
- InChIKey: IWMUNNGMJRKNSV-UONOGXRCSA-N
- Molecular Weight: 349.386
- Molecular Formula: C21H19NO4
- 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: (1R,4S)-4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)cyclopent-2-ene-1-carboxylic acid
- SMILES: O=C([C@@H]1C[C@H](NC(OCC2C3=CC=CC=C3C4=CC=CC=C42)=O)C=C1)O

Pricing & Availability

5,706

STA PHARMACEUTICAL US LLC Fmoc-L-2-(5-Bromothienyl)alanine | 25 g | CAS 220497-50-7 | MDL MFCD01311745

Fmoc-L-2-(5-Bromothienyl)alanine is a Amino Acid reagent (Subcategory: Aryl AA) sold by WuXi TIDES. Offered in 25 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 220497-50-7
- MDL: MFCD01311745
- InChIKey: ABNLVFDGUSJGFG-IBGZPJMESA-N
- Molecular Weight: 472.353
- Molecular Formula: C22H18BrNO4S
- 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)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(5-bromothiophen-2-yl)propanoic acid
- SMILES: BrC1=CC=C(C[C@H](NC(OCC2C3=CC=CC=C3C4=CC=CC=C42)=O)C(O)=O)S1

Pricing & Availability

5,707

STA PHARMACEUTICAL US LLC Fmoc-beta-L-HomoGln(Trt)-OH | 1 g | CAS 401915-55-7 | MDL MFCD03427580

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

Specifications
- CAS: 401915-55-7
- MDL: MFCD03427580
- InChIKey: YWEDBQXENWAMAS-HKBQPEDESA-N
- Molecular Weight: 624.737
- Molecular Formula: C40H36N2O5
- 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)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-6-oxo-6-(tritylamino)hexanoic acid
- SMILES: O=C(C[C@H](CCC(NC(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3)=O)NC(OCC4C5=CC=CC=C5C6=CC=CC=C64)=O)O

Pricing & Availability

5,708

STA PHARMACEUTICAL US LLC Fmoc-(R)-3-Amino-3-(3-methyl-phenyl)propionic acid | 50 g | CAS 507472-28-8 | MDL MFCD03428010

Fmoc-(R)-3-Amino-3-(3-methyl-phenyl)propionic 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: 507472-28-8
- MDL: MFCD03428010
- InChIKey: QDIMUVCWIVIKLY-HSZRJFAPSA-N
- Molecular Weight: 401.462
- Molecular Formula: C25H23NO4
- 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)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(m-tolyl)propanoic acid
- SMILES: CC1=CC([C@@H](CC(O)=O)NC(OCC2C3=CC=CC=C3C4=CC=CC=C42)=O)=CC=C1

Pricing & Availability

5,709

eMolecules 2054339-01-2 | N-Boc-N-bis(PEG2-acid) | Broadpharm | MFCD29912844 | 437.486 | C19H35NO10 | 95.000 | CC(C)(C)OC(=O)N(CCOCCOCCC(O)=O)CCOCCOCCC(O)=O | 500mg | 336613441

N-Boc-N-bis(PEG2-acid) | Broadpharm | 2054339-01-2 | MFCD29912844 | 437.486 | C19H35NO10 | 95.000 | CC(C)(C)OC(=O)N(CCOCCOCCC(O)=O)CCOCCOCCC(O)=O | 500mg | 336613441

Pricing & Availability

5,710

Medchemexpress LLC Glycyl-L-tryptophan | 2390-74-1 | MFCD00065978 | >98.0% | 261.28 g/mol | C13H15N3O3 | 100 MG

H-Gly-Trp-OH (Glycyl-L-tryptophan) is a research-grade dipeptide composed of glycine and L-tryptophan. Supplied as a dry powder for laboratory use, it is intended for peptide synthesis, biochemical assays, and metabolite or biochemical pathway studies. Handle and store according to supplier instructions to maintain stability.

Composed of glycine and L-tryptophan.
High purity (>98.0%).
Molecular weight 261.28 g/mol.
Molecular formula C13H15N3O3.
Available in multiple sizes for research workflows.
Powder storage: -20°C for long-term; follow supplier guidelines.

Pricing & Availability

5,711

Medchemexpress LLC N-alpha-(9-fluorenylmethoxycarbonyl)-N-zeta-(tert-butoxycarbonyl)-homo-L-lysine | 194718-17-7 | MFCD01860606 | 98.7% | 482.57 | C27H34N2O6 | 1 G

Fmoc-hLys(Boc)-OH is a Fmoc- and Boc-protected homolysine derivative used as a building block in Fmoc-based solid-phase peptide synthesis. The α-amino group is protected with an Fmoc group and the ε-side chain with a Boc group, enabling orthogonal deprotection and controlled incorporation into peptide sequences.

Protected amino acid for solid-phase peptide synthesis.
Enables selective side-chain protection and deprotection.
Compatible with standard Fmoc coupling and deprotection chemistries.
Supplied as a stable solid powder for synthesis workflows.
High purity suitable for research use (batch purity ~98.7%).
Available in multiple pack sizes for small-scale and bulk synthesis.

Pricing & Availability

5,712

Cayman Chemical D-Ala-D-Ala 1g

A dipeptide moiety of bacterial peptidoglycan; its replacement with D-Ala-D-lactate in peptidoglycan reduces the affinity of vancomycin and is responsible for vancomycin resistance

Pricing & Availability

5,713

STA PHARMACEUTICAL US LLC Fmoc-L-Asp-pNA | 25 g | CAS 185547-52-8 | MDL MFCD02179637

Fmoc-L-Asp-pNA is a Amino Acid reagent (Subcategory: Beta AA) sold by WuXi TIDES. Offered in 25 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 185547-52-8
- MDL: MFCD02179637
- InChIKey: WIGASSLCYMGNEA-QFIPXVFZSA-N
- Molecular Weight: 475.457
- Molecular Formula: C25H21N3O7
- Purity: ≥95%
- Container Type: 125 mL HDPE
- Pack Size: 25 g
- Net Weight: 25 g
- Gross Weight: 54.3 g
- Commodity Code: 29242970
- Country Of Origin: China
- IUPAC: (S)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-((4-nitrophenyl)amino)-4-oxobutanoic acid
- SMILES: O=C(C[C@H](NC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)C(NC4=CC=C(C=C4)[N+]([O-])=O)=O)O

Pricing & Availability

5,714

Medchemexpress LLC Cyclo(Gly-Gln) | 52662-00-7 | 98.1% | 50 MG

Cyclo(Gly-Gln) is a cyclic dipeptide.

Molecular weight of 185.18
Chemical formula C7H11N3O3
Appears as a solid
Color ranges from white to off-white
Sequence is Cyclo(Gly-Gln)
Shortened sequence is Cyclo(GQ)
Solubility in H2O is 13.89 mg/mL (75.01 mM)
Powder can be stored at -80°C for 2 years or -20°C for 1 year
Solution can be stored at -80°C for 6 months or -20°C for 1 month

Pricing & Availability

5,715

PFALTZ & BAUER INC G-L-GLUTAMYL HYDRAZIDE 1G

50144692 G-L-GLUTAMYL HYDRAZIDE 1G

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Amino Acids

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Medchemexpress LLC Glycyl-L-tryptophan | 2390-74-1 | MFCD00065978 | >98.0% | 261.28 g/mol | C13H15N3O3 | 100 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC N-alpha-(9-fluorenylmethoxycarbonyl)-N-zeta-(tert-butoxycarbonyl)-homo-L-lysine | 194718-17-7 | MFCD01860606 | 98.7% | 482.57 | C27H34N2O6 | 1 G Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Cayman Chemical D-Ala-D-Ala 1g Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Cyclo(Gly-Gln) | 52662-00-7 | 98.1% | 50 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Glycyl-L-tryptophan | 2390-74-1 | MFCD00065978 | >98.0% | 261.28 g/mol | C13H15N3O3 | 100 MG

Medchemexpress LLC N-alpha-(9-fluorenylmethoxycarbonyl)-N-zeta-(tert-butoxycarbonyl)-homo-L-lysine | 194718-17-7 | MFCD01860606 | 98.7% | 482.57 | C27H34N2O6 | 1 G

Cayman Chemical D-Ala-D-Ala 1g

Medchemexpress LLC Cyclo(Gly-Gln) | 52662-00-7 | 98.1% | 50 MG