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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6,526 – 6,540 of 35,791 results

6,526

Medchemexpress LLC Val-Ala-PABC-Exatecan (trifluoroacetate) | 2928571-45-1 | 868.83 g·mol⁻¹ | C42H44F4N6O10 | 5 MG

Val-Ala-PABC-Exatecan (trifluoroacetate) is a drug-linker conjugate that combines a cleavable Val-Ala-PABC peptide linker with the topoisomerase I inhibitor exatecan. Supplied as the trifluoroacetate salt in milligram quantities, it is intended for research use in antibody-drug conjugate (ADC) synthesis and conjugation workflows.

Contains a cleavable Val-Ala-PABC peptide linker.
Delivers exatecan, a topoisomerase I inhibitor payload.
Supplied as the trifluoroacetate salt for handling stability.
Available in milligram quantities suitable for conjugation workflows.
Intended for research use only; not for human or clinical use.

Pricing & Availability

6,527

Cambridge Isotope Laboratories L-Valine (13C5 99%) 0 1 g

L-Valine (13C5 99%) 0 1 g

Pricing & Availability

6,528

Medchemexpress LLC H-Pro-Val-OH | 52899-09-9 | 99.3% | 214.26 | 50 MG

H-Pro-Val-OH is a deprotonation dipeptide containing proline. It can catalyze the Michael addition reaction of acetone to trans-β-nitrostyrene. This compound can also act as a substrate for fibroblast enzymes and prolinase, offering potential applications in biochemical analysis.

Catalyzes Michael addition reactions
Acts as a substrate for fibroblast enzymes
Acts as a substrate for prolinase
Useful in biochemical analysis

Pricing & Availability

6,529

Medchemexpress LLC Mc-Pro-PAB-MMAE | 2766450-03-5 | 99.2% | 1214.49 | C64H95N9O14 | 10 MG

Mc-Pro-PAB-MMAE is a drug-linker conjugate used in the synthesis of antibody-drug conjugates (ADCs). It combines monomethyl auristatin E with a para-aminobenzyl (PAB)-type linker and is supplied as a solid for research use only.

Consists of monomethyl auristatin E and a PAB-type linker.
Molecular formula C64H95N9O14 and molecular weight 1214.49.
CAS number 2766450-03-5.
Purity approximately 99.2%.
White to off-white solid appearance.
Soluble in DMSO at ≥100 mg/mL.
Available in multiple milligram pack sizes for research applications.
Intended for research use only; not for human therapeutic use.

Pricing & Availability

6,530

eMolecules 863971-53-3 | FMOC-VAL-CIT-PAB-PNP | AstaTech | MFCD22200278 | 766.808 | C40H42N6O10 | 95.000 | CC(C)[C@H](NC(=O)OCC1c2ccccc2-c2ccccc12)C(=O)N[C@@H](CCCNC(N)=O)C(=O)Nc1ccc(COC(=O)Oc2ccc(cc2)[N+]([O-])=O)cc1 | 0.1g | 416218365

FMOC-VAL-CIT-PAB-PNP | AstaTech | 863971-53-3 | MFCD22200278 | 766.808 | C40H42N6O10 | 95.000 | CC(C)[C@H](NC(=O)OCC1c2ccccc2-c2ccccc12)C(=O)N[C@@H](CCCNC(N)=O)C(=O)Nc1ccc(COC(=O)Oc2ccc(cc2)[N+]([O-])=O)cc1 | 0.1g | 416218365

Pricing & Availability

6,531

eMolecules 863971-53-3 | Fmoc-Val-Cit-PAB-PNP | Combi-Blocks, Inc. | MFCD22200278 | 766.808 | C40H42N6O10 | 97.000 | CC(C)[C@H](NC(=O)OCC1c2ccccc2-c2ccccc12)C(=O)N[C@@H](CCCNC(N)=O)C(=O)Nc1ccc(COC(=O)Oc2ccc(cc2)[N+]([O-])=O)cc1 | 10g | 837466096

Fmoc-Val-Cit-PAB-PNP | Combi-Blocks, Inc. | 863971-53-3 | MFCD22200278 | 766.808 | C40H42N6O10 | 97.000 | CC(C)[C@H](NC(=O)OCC1c2ccccc2-c2ccccc12)C(=O)N[C@@H](CCCNC(N)=O)C(=O)Nc1ccc(COC(=O)Oc2ccc(cc2)[N+]([O-])=O)cc1 | 10g | 837466096

Pricing & Availability

6,532

eMolecules 863971-53-3 | FMOC-VAL-CIT-PAB-PNP | AstaTech | MFCD22200278 | 766.808 | C40H42N6O10 | 95.000 | CC(C)[C@H](NC(=O)OCC1c2ccccc2-c2ccccc12)C(=O)N[C@@H](CCCNC(N)=O)C(=O)Nc1ccc(COC(=O)Oc2ccc(cc2)[N+]([O-])=O)cc1 | 0.25g | 364323001

Pricing & Availability

6,533

Medchemexpress LLC Fmoc-val-ala-aminomethyl acetate | 2505045-86-1 | 97.3% | 481.54 | C26H31N3O6 | 100 MG

Fmoc-Val-Ala-aminomethyl acetate is an Fmoc-protected val-ala dipeptide used as a cleavable linker component for antibody-drug conjugate (ADC) synthesis in research settings. It provides an Fmoc-protected N-terminus and an aminomethyl acetate functional handle suitable for conjugation chemistry.

Cleavable dipeptide linker useful for ADC construction.
Fmoc-protected N-terminus compatible with peptide synthesis workflows.
Aminomethyl acetate functional handle for conjugation.
High purity suitable for research (97.3%).
Available in lab-scale quantities (25 mg-1 g).

Pricing & Availability

6,534

Medchemexpress LLC DL-Norvaline | 760-78-1 | 98.0% | 117.15 | 500 MG

DL-Norvaline, also known as 2-Aminopentanoic acid, is a derivative of L-norvaline. L-norvaline acts as a non-competitive inhibitor of arginase. This product is intended for research use only.

Functions as an endogenous metabolite.
Available as a white to off-white solid.
Detailed storage conditions for both powder and solution forms.
Solubility information provided for in vitro and in vivo applications.

Pricing & Availability

6,535

Broadpharm FMOC-VAL-CIT-PAB-PNP 1g

FMOC-VAL-CIT-PAB-PNP 1g

Pricing & Availability

6,536

Medchemexpress LLC H-Pro-Val-OH | 52899-09-9 | 99.3% | 214.26 | 250 MG

H-Pro-Val-OH is a deprotonation dipeptide containing proline, capable of catalyzing the Michael addition reaction of acetone to trans-β-nitrostyrene. It can also function as a substrate for fibroblast enzymes and prolinase, with potential uses in biochemical analysis.

Purity: 99.3%
Molecular weight: 214.26
Formula: C10H18N2O3
Appearance: Solid
Color: Off-white to light brown
Sequence: Pro-Val
Solubility in H2O: ≥ 25 mg/mL (116.68 mM)
Shipping: Room temperature in continental US; may vary elsewhere
Powder storage: -80°C for 2 years; -20°C for 1 year
In solvent storage: -80°C for 6 months; -20°C for 1 month (sealed storage, away from moisture)

Pricing & Availability

6,537

Medchemexpress LLC N-acetyl-D-valine | 17916-88-0 | MFCD00026457; MFCD03939895 | 97.0% | 159.18 g/mol | C7H13NO3 | 100 G

N-acetyl-D-valine is the N-acetylated derivative of the amino acid D-valine provided for research use. It is intended as a synthetic building block and analytical reagent for medicinal chemistry, peptide synthesis, and biochemical studies.

High chemical purity (97.0%).
Molecular formula C7H13NO3; molecular weight 159.18 g/mol.
Solid appearance; hygroscopic considerations for solvents.
Soluble in DMSO at approximately 100 mg/mL; may require sonication.
Recommended storage: powder at -20°C (long term) or 4°C (short term); in solvent at -80°C or -20°C as specified.
Suitable as a synthetic building block and reference standard for research applications.

Pricing & Availability

6,538

Chem-Impex International, Inc. L-Valine | 72-18-4 | MFCD00064220 | 250G

L-Valine, 72-18-4, MFCD00064220, 250G

Pricing & Availability

6,539

eMolecules 1394238-92-6 | Fmoc-Val-Ala-PAB-PNP | Combi-Blocks, Inc. | MFCD28557283 | 680.714 | C37H36N4O9 | 98.000 | CC(C)[C@H](NC(=O)OCC1c2ccccc2-c2ccccc12)C(=O)N[C@@H](C)C(=O)Nc1ccc(COC(=O)Oc2ccc(cc2)[N+]([O-])=O)cc1 | 1g | 797031067

Fmoc-Val-Ala-PAB-PNP | Combi-Blocks, Inc. | 1394238-92-6 | MFCD28557283 | 680.714 | C37H36N4O9 | 98.000 | CC(C)[C@H](NC(=O)OCC1c2ccccc2-c2ccccc12)C(=O)N[C@@H](C)C(=O)Nc1ccc(COC(=O)Oc2ccc(cc2)[N+]([O-])=O)cc1 | 1g | 797031067

Pricing & Availability

6,540

eMolecules 1394238-92-6 | Fmoc-Val-Ala-PAB-PNP | Combi-Blocks, Inc. | MFCD28557283 | 680.714 | C37H36N4O9 | 98.000 | CC(C)[C@H](NC(=O)OCC1c2ccccc2-c2ccccc12)C(=O)N[C@@H](C)C(=O)Nc1ccc(COC(=O)Oc2ccc(cc2)[N+]([O-])=O)cc1 | 10g | 869682383

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Amino Acids

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Medchemexpress LLC Val-Ala-PABC-Exatecan (trifluoroacetate) | 2928571-45-1 | 868.83 g·mol⁻¹ | C42H44F4N6O10 | 5 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC H-Pro-Val-OH | 52899-09-9 | 99.3% | 214.26 | 50 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Mc-Pro-PAB-MMAE | 2766450-03-5 | 99.2% | 1214.49 | C64H95N9O14 | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Fmoc-val-ala-aminomethyl acetate | 2505045-86-1 | 97.3% | 481.54 | C26H31N3O6 | 100 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC DL-Norvaline | 760-78-1 | 98.0% | 117.15 | 500 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC H-Pro-Val-OH | 52899-09-9 | 99.3% | 214.26 | 250 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC N-acetyl-D-valine | 17916-88-0 | MFCD00026457; MFCD03939895 | 97.0% | 159.18 g/mol | C7H13NO3 | 100 G Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More