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.

Search Within Results

6,976 – 6,990 of 36,043 results

6,976

STA PHARMACEUTICAL US LLC Fmoc-(S)-2-(Aminomethyl)-3-methylbutanoic acid | 25 g | CAS 203854-59-5 | MDL MFCD07372881

Fmoc-(S)-2-(Aminomethyl)-3-methylbutanoic acid 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: 203854-59-5
- MDL: MFCD07372881
- InChIKey: WVHQNPPGMKCPTP-GOSISDBHSA-N
- Molecular Weight: 353.418
- Molecular Formula: C21H23NO4
- 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)-2-(((((9H-fluoren-9-yl)methoxy)carbonyl)amino)methyl)-3-methylbutanoic acid
- SMILES: CC(C)[C@@H](CNC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)C(O)=O

Pricing & Availability

6,977

STA PHARMACEUTICAL US LLC Fmoc-L-Valinol | 5 g | CAS 160885-98-3 | MDL MFCD00235961

Fmoc-L-Valinol is a Amino Acid reagent (Subcategory: Building Block) sold by WuXi TIDES. Offered in 5 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 160885-98-3
- MDL: MFCD00235961
- InChIKey: MYMGENAMKAPEMT-LJQANCHMSA-N
- Molecular Weight: 325.408
- Molecular Formula: C20H23NO3
- 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: (9H-fluoren-9-yl)methyl (S)-(1-hydroxy-3-methylbutan-2-yl)carbamate
- SMILES: CC(C)[C@@H](CO)NC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O

Pricing & Availability

6,978

STA PHARMACEUTICAL US LLC Fmoc-L-Val-L-Thr[PSI(Me,Me)Pro]-OH | 10 g | CAS 168216-05-5 | MDL MFCD18427722

Fmoc-L-Val-L-Thr[PSI(Me,Me)Pro]-OH is a Amino Acid reagent (Subcategory: Pseudo AA) sold by WuXi TIDES. Offered in 10 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 168216-05-5
- MDL: MFCD18427722
- InChIKey: OPMOLWFENHTLNA-XARZLDAJSA-N
- Molecular Weight: 480.561
- Molecular Formula: C27H32N2O6
- Purity: ≥95%
- Container Type: 60 mL HDPE
- Pack Size: 10 g
- Net Weight: 10 g
- Gross Weight: 25 g
- Commodity Code: 29349990
- Country Of Origin: China
- IUPAC: (4S,5R)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)-L-valyl)-2,2,5-trimethyloxazolidine-4-carboxylic acid
- SMILES: CC([C@H](NC(OCC1C2=C(C3=C1C=CC=C3)C=CC=C2)=O)C(N4[C@H](C(O)=O)[C@H](OC4(C)C)C)=O)C

Pricing & Availability

6,979

eMolecules 2480-23-1 | N-Methyl-L-valine | MFCD00037754 | 1g

Medchem Express | Methyldopate | 5mg | 722714461 | HY-B1696 | 6014-30-8 | MFCD00865839 | 239.271 | C12H17NO4

If you are unable to find the chemical you are looking for, make sure you are logged into your fishersci.com account and click on the following link:
eMolecules Building Block Tool<|a>

Pricing & Availability

6,980

Medchemexpress LLC Fmoc-Val-Cit-PAB-MMAE | 1350456-56-2 | 98.9% | 1345.67 | C73H104N10O14 | 50 MG

Fmoc-Val-Cit-PAB-MMAE is an antibody-drug conjugate linker-payload conjugate that couples an Fmoc-protected Val-Cit-PAB cleavable linker to monomethyl auristatin E (MMAE) for use in antibody-drug conjugate research and development.

Contains a cleavable Val-Cit-PAB linker that is susceptible to proteolytic release.
Delivers monomethyl auristatin E (MMAE), a potent tubulin inhibitor.
High reported purity suitable for research applications.
Supplied as a white solid and available in multiple pack sizes.
Provided with supporting documents such as SDS and certificate of analysis for safe handling and quality verification.

Pricing & Availability

6,981

Medchemexpress LLC Bcn-PEG1-Val-Cit-PABC-OH | 95.0% | 670.80 g/mol | C34H50N6O8 | 5 MG

BCN-PEG1-Val-Cit-PABC-OH is a BCN-functionalized, cleavable PEG-based antibody-drug conjugate (ADC) linker containing a Val-Cit dipeptide and a para-aminobenzyl carbamate self-immolative spacer. It is supplied as a powder for conjugation and click chemistry with azide-functionalized payloads.

Cleavable Val-Cit dipeptide with PABC self-immolative spacer.
Single-unit PEG (PEG1) provides solubility and spacing.
BCN group enables strain-promoted azide-alkyne cycloaddition (SPAAC) conjugation.
Supplied as powder, soluble in DMSO, store at -20°C.
Purity typically 95.0% and molecular weight ~670.80 g/mol.

Pricing & Availability

6,982

Medchemexpress LLC Val-cit-PAB-OH | 159857-79-1 | 379.45 | C18H29N5O4 | 25 G

Val-cit-PAB-OH is a cleavable, protease-sensitive antibody-drug conjugate (ADC) linker that couples cytotoxic payloads to antibodies through a valine-citrulline dipeptide and a para-aminobenzyl (PAB) self-immolative spacer. It is designed to remain stable in circulation and release payloads upon intracellular protease cleavage, supporting targeted delivery in ADC synthesis.

Cleavable by intracellular proteases via valine-citrulline mechanism.
Stable in systemic circulation, reducing premature payload release.
Enables self-immolative payload release through a PAB spacer.
Compatible with common conjugation chemistries for ADC construction.
Available in gram-scale quantities for research and scale-up synthesis.
Supplied with manufacturer storage guidance for long-term stability.

Pricing & Availability

6,983

Medchemexpress LLC Val-Ala-PAB-MMAE | 1912408-92-4 | 98.9% | 1,037.33 g/mol | C55H88N8O11 | 10 MG

Val-Ala-PAB-MMAE is a drug-linker conjugate that couples the cleavable Val-Ala-PAB peptide linker to monomethyl auristatin E (MMAE), a potent tubulin inhibitor, and is supplied for antibody-drug conjugate research and development.

Drug-linker conjugate of Val-Ala-PAB and MMAE.
Purity 98.9%.
Molecular weight 1,037.33 g/mol; formula C55H88N8O11.
Supplied in multiple pack sizes, including 10 mg.
Intended for research use in antibody-drug conjugate development.

Pricing & Availability

6,984

Medchemexpress LLC Mc-Val-Cit-PAB-Gefitinib (chloride) | 98.7% | 1038.00 g·mol-1 | C50H63Cl2FN10O9 | 1 MG

Mc-Val-Cit-PAB-Gefitinib (chloride) is a drug-linker conjugate consisting of the EGFR inhibitor gefitinib coupled to an Mc-Val-Cit-PAB linker, supplied for research use only.

Drug-linker conjugate of gefitinib and Mc-Val-Cit-PAB linker.
White to off-white solid appearance.
Molecular formula C50H63Cl2FN10O9.
Molecular weight 1038.00 g·mol-1.
Reported purity 98.7%.
Intended for research use only; not for human or animal therapeutic use.
Store at -20°C in a sealed container, away from moisture and light.
Available in small milligram package sizes for laboratory research.

Pricing & Availability

6,985

Medchemexpress LLC Fmoc-Gly3-Val-Cit-PAB | 2647914-09-6 | 95.0% | 772.85 g/mol | C39H48N8O9 | 5 MG

Fmoc-Gly3-Val-Cit-PAB is a Fmoc-protected, cleavable peptide-based ADC linker used for the synthesis of antibody-drug conjugates (ADCs). It contains a Val-Cit cleavable dipeptide and a para-aminobenzyl (PAB) self-immolative spacer and is supplied at 95.0% purity.

Cleavable Val-Cit peptide linker.
Fmoc-protected for solid-phase synthesis compatibility.
Contains para-aminobenzyl (PAB) self-immolative spacer.
Molecular weight 772.85 g/mol.
Molecular formula C39H48N8O9.
Available in small-scale research quantities (e.g., 5 mg).

Pricing & Availability

6,986

Medchemexpress LLC Fmoc-Val-Cit-Pab-Mmae 100Mg | HY-19811-100MG

Fmoc-Val-Cit-Pab-Mmae 100Mg

Pricing & Availability

6,987

Medchemexpress LLC Fmoc-D-N-Me-Val-OH | 103478-58-6 | 99.3% | 353.42 | 10 G

Fmoc-D-N-Me-Val-OH is a valine derivative. Amino acids and amino acid derivatives, such as Fmoc-D-N-Me-Val-OH, are commercially used as ergogenic supplements. They can influence the secretion of anabolic hormones, the supply of fuel during exercise, mental performance during stress-related tasks, and can prevent exercise-induced muscle damage. These compounds are recognized as beneficial ergogenic dietary substances.

Valine derivative.
For research use only.
Influences secretion of anabolic hormones.
Supplies fuel during exercise.
Improves mental performance during stress-related tasks.
Prevents exercise-induced muscle damage.

Pricing & Availability

6,988

Medchemexpress LLC Boc-Val-Ala-PAB-PNP | 100mg

Boc-Val-Ala-PAB-PNP is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]

Pricing & Availability

6,989

Medchemexpress LLC Val-Cit-PAB-exatecan | 99.8% | 840.90 Da | C43H49FN8O9 | 25 MG

Val-Cit-PAB-Exatecan is an antibody-drug conjugate (ADC) agent-linker conjugate composed of an exatecan payload (a DNA topoisomerase I inhibitor) attached via a cathepsin-cleavable valine-citrulline para-aminobenzyl (Val-Cit-PAB) linker. It is supplied as a research reagent intended for ADC synthesis and linker-payload development.

Cathepsin-cleavable Val-Cit-PAB linker
Exatecan payload (topoisomerase I inhibitor)
High purity suitable for research applications
Available in multiple package sizes, including 25 MG
Useful for ADC linker-payload conjugation studies

Pricing & Availability

6,990

Medchemexpress LLC Hexa-His | 64134-30-1 | 99.8% | 840.85 | 1 ML

Hexa-His (6X His Tag) is a widely used affinity tag made up of six histidine residues. It facilitates protein purification and analysis by binding to affinity chromatography media that contain transition metal ions like nickel (Ni2+) or cobalt (Co2+).

Used for protein purification.
Binds to affinity chromatography media.
Supports in vitro protein purification and analysis.

Pricing & Availability

Amino Acids

Filtered Search Results

Narrow Results

Medchemexpress LLC Fmoc-Val-Cit-PAB-MMAE | 1350456-56-2 | 98.9% | 1345.67 | C73H104N10O14 | 50 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Bcn-PEG1-Val-Cit-PABC-OH | 95.0% | 670.80 g/mol | C34H50N6O8 | 5 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 | 379.45 | C18H29N5O4 | 25 G Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Val-Ala-PAB-MMAE | 1912408-92-4 | 98.9% | 1,037.33 g/mol | C55H88N8O11 | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Mc-Val-Cit-PAB-Gefitinib (chloride) | 98.7% | 1038.00 g·mol-1 | C50H63Cl2FN10O9 | 1 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Fmoc-Gly3-Val-Cit-PAB | 2647914-09-6 | 95.0% | 772.85 g/mol | C39H48N8O9 | 5 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Fmoc-Val-Cit-Pab-Mmae 100Mg | HY-19811-100MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Fmoc-D-N-Me-Val-OH | 103478-58-6 | 99.3% | 353.42 | 10 G Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Boc-Val-Ala-PAB-PNP | 100mg Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Val-Cit-PAB-exatecan | 99.8% | 840.90 Da | C43H49FN8O9 | 25 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Hexa-His | 64134-30-1 | 99.8% | 840.85 | 1 ML Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More