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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2,881 – 2,895 of 35,795 results

2,881

Medchemexpress LLC SuO-Val-Cit-PAB-MMAE | 99.2% | 1264.51 g/mol | C63H97N11O16 | 100 MG

SuO-Val-Cit-PAB-MMAE is a drug-linker conjugate for antibody-drug conjugate research that links the antimitotic payload monomethyl auristatin E (MMAE) to a protease-cleavable SuO-Val-Cit-PAB peptide linker, enabling intracellular release of the cytotoxic payload. The compound is supplied as a solid reagent for use as a building block in ADC synthesis and preclinical studies.

Protease-cleavable SuO-Val-Cit-PAB linker for targeted payload release.
Contains monomethyl auristatin E (MMAE) as the cytotoxic payload.
High purity suitable for research applications.
DMSO soluble; dissolve with ultrasonic and warming as needed.
Stored under inert atmosphere at -80°C to preserve stability.
Supplied in multiple package sizes for research flexibility.

Pricing & Availability

2,882

Medchemexpress LLC Z-Val-Ala-OH (Carbobenzoxy-L-valyl-L-alanine) | 24787-89-1 | 99.8% | 322.36 | 100 MG

Z-Val-Ala-OH is a dipeptide derivative of valine and alanine. It is intended for research use only.

Dipeptide derivative of valine and alanine.

Pricing & Availability

2,883

Medchemexpress LLC Val-cit-PAB-OH | 159857-79-1 | MFCD22381209 | 99.6% | 379.45 g/mol | C18H29N5O4 | 100 MG

Val-cit-PAB-OH is a protease-cleavable, degradable antibody-drug conjugate (ADC) linker (valine-citrulline-p-aminobenzyl alcohol) supplied as a white to off-white solid for research use. It is designed for incorporation into ADCs to enable payload release following enzymatic cleavage and is provided with supporting documentation including a datasheet, certificate of analysis, and safety data sheet.

Degradable protease-cleavable linker enabling controlled payload release.
Suitable for ADC synthesis and linker-drug conjugation workflows.
High purity appropriate for research applications.
Soluble in DMSO at ≥ 100 mg/mL for preparation of concentrated stocks.
Stable when stored at 4°C under inert atmosphere; in solution, store at -80°C for long-term storage.
Supplied as a white to off-white solid for handling and formulation flexibility.

Pricing & Availability

2,884

Medchemexpress LLC L-valine-1,2,3,4,4′-13C5 | 55443-52-2 | MFCD00144707 | 99.6% | 122.11 g/mol | 13C5H11NO2 | 10 MG

L-Valine-13C5 is the 13C-labeled isotopologue of the amino acid L-valine, supplied as a white to off-white powder for research and analytical use. It is commonly used as an internal standard, tracer, or labeled substrate in metabolic and mass-spectrometry studies.

Isotopically labeled (13C5) for tracer and mass-spectrometry applications.
High purity (99.6%) appropriate for analytical work.
Solid powder form, convenient for weighing and dissolution.
Small pack size (10 mg) suitable for low-consumption experiments.
Storage recommendations: powder -20°C for long-term stability.

Pricing & Availability

2,885

Medchemexpress LLC Glycyl-L-valine | 1963-21-9 | MFCD00066046 | 98.0% | 174.20 g/mol | C7H14N2O3 | 250 MG

Glycyl-L-valine is a dipeptide of glycine and L-valine provided as a research reagent and endogenous metabolite standard. It is supplied as a solid powder with a reported purity of 98.0% and is used for biochemical studies, metabolite identification, and as a reference standard in analytical assays. For research use only.

High purity (98.0%) suitable for analytical and research applications.
Available in multiple pack sizes to match experiment scale.
Solid powder form that is stable under standard storage conditions.
Suitable as an endogenous metabolite reference in biochemical assays.
Comes with product and safety documentation to support laboratory use.

Pricing & Availability

2,886

Medchemexpress LLC SuO-Glu-Val-Cit-PAB-MMAE | 1895916-24-1 | 95.0% | 1334.60 | C67H103N11O17 | 10 MG

SuO-Glu-Val-Cit-PAB-MMAE is a drug-linker conjugate combining a cleavable Glu-Val-Cit-PAB linker with the tubulin inhibitor MMAE for use in antibody-drug conjugate (ADC) synthesis. The product is supplied as a solid for research use only and requires low-temperature storage and protected handling.

Cleavable Glu-Val-Cit-PAB linker enabling enzymatic payload release.
Contains potent tubulin inhibitor payload (MMAE) for ADC development.
High purity (≈95.0%) suitable for conjugation and analytical work.
Soluble in DMSO; stock solution preparation guidance provided.
Store at -80°C and protect from light; unstable in solution, freshly prepare solutions before use.

Pricing & Availability

2,887

Biotium Amine Reactive Dyes Reactive CF Dyes Other Dyes Biotinylation Reagents Reactive CF Dyes CF505 1/EA

CF Dye Succinimidyl Esters (SE NHS esters) are Biotiums next-generation fluorescent dyes in amine-reactive form for labeling antibodies and other proteins CF505 is a green-fluorescent STORM-compatible dye that is structrually equivalent to ATTO 488 Ex/Em 505/519 nm 1 umol per vial

Pricing & Availability

2,888

eMolecules 15891-50-6 | Ac-Nva-OH | Combi-Blocks | MFCD00151963 | 159.185 | C7H13NO3 | 98.000 | CCC[C@H](NC(C)=O)C(O)=O | 5g | 117563712

Ac-Nva-OH | Combi-Blocks | 15891-50-6 | MFCD00151963 | 159.185 | C7H13NO3 | 98.000 | CCC[C@H](NC(C)=O)C(O)=O | 5g | 117563712

Pricing & Availability

2,889

STA Pharmaceutical Fmoc-L-Val-L-Pro-OH | 50 g | CAS 109425-49-2 | MDL MFCD00237675

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

Specifications
- CAS: 109425-49-2
- MDL: MFCD00237675
- InChIKey: PNFSGKNIZOXLKU-VXKWHMMOSA-N
- Molecular Weight: 436.508
- Molecular Formula: C25H28N2O5
- 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: (((9H-fluoren-9-yl)methoxy)carbonyl)-L-valyl-L-proline
- SMILES: CC([C@H](NC(OCC1C2=C(C3=C1C=CC=C3)C=CC=C2)=O)C(N4CCC[C@H]4C(O)=O)=O)C

Pricing & Availability

2,890

STA Pharmaceutical Fmoc-D-beta-HomoVal-OH | 10 g | CAS 266318-79-0 | MDL MFCD03095625

Fmoc-D-beta-HomoVal-OH is a Amino Acid reagent (Subcategory: Beta AA) sold by WuXi TIDES. Offered in 10 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 266318-79-0
- MDL: MFCD03095625
- InChIKey: KFDMTAMWOIQTOB-IBGZPJMESA-N
- Molecular Weight: 353.418
- Molecular Formula: C21H23NO4
- 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: (S)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-methylpentanoic acid
- SMILES: CC(C)[C@H](CC(O)=O)NC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O

Pricing & Availability

2,891

eMolecules 159857-79-1 | Val-cit-PAB-OH | Ambeed | MFCD22381209 | 379.461 | C18H29N5O4 | 97.000 | CC(C)[C@H](N)C(=O)N[C@@H](CCCNC(N)=O)C(=O)Nc1ccc(CO)cc1 | 1mg | 682927967

Val-cit-PAB-OH | Ambeed | 159857-79-1 | MFCD22381209 | 379.461 | C18H29N5O4 | 97.000 | CC(C)[C@H](N)C(=O)N[C@@H](CCCNC(N)=O)C(=O)Nc1ccc(CO)cc1 | 1mg | 682927967

Pricing & Availability

2,892

STA Pharmaceutical Fmoc-N-Me-D-Nva-OH | 1 g | CAS 1799443-42-7 | MDL MFCD07366866

Fmoc-N-Me-D-Nva-OH 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: 1799443-42-7
- MDL: MFCD07366866
- InChIKey: HKELUUGCKFRJQM-LJQANCHMSA-N
- Molecular Weight: 353.418
- Molecular Formula: C21H23NO4
- 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: (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)(methyl)amino)pentanoic acid
- SMILES: CCC[C@@H](N(C(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)C)C(O)=O

Pricing & Availability

2,893

Medchemexpress LLC D-Norvaline | 2013-12-9 | MFCD00038870 | 98.9% | 117.15 | 25 G

D-Norvaline is a valine derivative. Amino acids and amino acid derivatives have been commercially used as ergogenic supplements. They influence the secretion of anabolic hormones, supply fuel during exercise, improve mental performance during stress-related tasks, and prevent exercise-induced muscle damage. They are recognized to be beneficial as ergogenic dietary substances.

Amino acid derivative
Can be used as an ergogenic supplement
Influences secretion of anabolic hormones
Supplies fuel during exercise
Improves mental performance during stress-related tasks
Prevents exercise-induced muscle damage

Pricing & Availability

2,894

Medchemexpress LLC Benzyloxycarbonyl-L-valylglycine | 2790-84-3 | >98.0% | 308.33 g/mol | C15H20N2O5 | 10 G

Z-Val-Gly-OH is the N-benzyloxycarbonyl (Cbz, Z) protected dipeptide of valine and glycine supplied as a research reagent and synthetic intermediate. It is commonly used in peptide synthesis and biochemical studies.

Cbz-protected dipeptide of valine and glycine
Purity greater than 98.0%
Molecular weight 308.33 g/mol
Chemical formula C15H20N2O5
CAS number 2790-84-3
Available pack sizes: 1 g, 10 g, 25 g

Pricing & Availability

2,895

Medchemexpress LLC Boc-Val-Cit-PAB | 870487-09-5 | MFCD22381208 | 99.6% | 479.57 g/mol | C23H37N5O6 | 250 MG

Boc-Val-Cit-PAB is a cleavable peptide-based ADC linker that uses a valine-citrulline protease-cleavable dipeptide and a para-aminobenzyl (PAB) self-immolative spacer to release payloads after internalization. It is supplied as a powder with high purity for use in antibody-drug conjugate synthesis.

Cleavable valine-citrulline linker enabling enzyme-triggered payload release.
Para-aminobenzyl (PAB) self-immolative spacer for efficient payload liberation.
Boc-protected N-terminus for stability during conjugation workflows.
High purity suitable for research-grade ADC synthesis.
Available in multiple pack sizes, including 250 mg.
Store powder at -20°C for long-term stability, aliquot solutions to avoid freeze-thaw.

Pricing & Availability

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Medchemexpress LLC SuO-Val-Cit-PAB-MMAE | 99.2% | 1264.51 g/mol | C63H97N11O16 | 100 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Z-Val-Ala-OH (Carbobenzoxy-L-valyl-L-alanine) | 24787-89-1 | 99.8% | 322.36 | 100 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Val-cit-PAB-OH | 159857-79-1 | MFCD22381209 | 99.6% | 379.45 g/mol | C18H29N5O4 | 100 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC L-valine-1,2,3,4,4′-13C5 | 55443-52-2 | MFCD00144707 | 99.6% | 122.11 g/mol | 13C5H11NO2 | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Glycyl-L-valine | 1963-21-9 | MFCD00066046 | 98.0% | 174.20 g/mol | C7H14N2O3 | 250 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC SuO-Glu-Val-Cit-PAB-MMAE | 1895916-24-1 | 95.0% | 1334.60 | C67H103N11O17 | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC D-Norvaline | 2013-12-9 | MFCD00038870 | 98.9% | 117.15 | 25 G Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Benzyloxycarbonyl-L-valylglycine | 2790-84-3 | >98.0% | 308.33 g/mol | C15H20N2O5 | 10 G Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Boc-Val-Cit-PAB | 870487-09-5 | MFCD22381208 | 99.6% | 479.57 g/mol | C23H37N5O6 | 250 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More