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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6,961 – 6,975 of 36,043 results

6,961

Medchemexpress LLC MEDCHEMEXPRESS LLC

5000807576 D-VAL-LEU-LYS-PNA 10MG

Pricing & Availability

6,962

BIOHIPPO InVivoMAb Anti-Human ARG1/Arginase-1 Antibody (Iv0120), 100 µg

ARG1/Arginase-1 Recombinant Antibody (clone Iv0120) is a recombinant Mouse IgG2a, kappa antibody specific for ARG1/Arginase-1. It reacts with Human. Suitable for ELISA, FCM, Neutralization. Recombinant production ensures high specificity and lot-to-lot reproducibility. Supplied as 100 ug.

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6,963

Ambeed AMBEED

5000892033 BOC-VAL-CIT-PAB-PNP 100MG

Pricing & Availability

6,964

Medchemexpress LLC Mal-peg2-val-cit-paba-pnp | 1345681-52-8 | 96.8% | 755.73 | C34H41N7O13 | 25 MG

Mal-PEG2-Val-Cit-PABA-PNP is a cleavable antibody-drug conjugate (ADC) linker used to attach cytotoxins to antibodies during ADC synthesis. It contains a maleimide reactive group for thiol conjugation, a PEG2 spacer to improve solubility, a cathepsin-cleavable valine-citrulline dipeptide, and a self-immolative p-aminobenzyl spacer with a p-nitrophenyl leaving group.

Cleavable linker for antibody-drug conjugate synthesis.
Maleimide functional group enables thiol reactivity.
Peg2 spacer increases aqueous solubility and hydrophilicity.
Val-Cit dipeptide is cleavable by lysosomal proteases.
PABA self-immolative spacer allows efficient payload release.
PNP leaving group facilitates conjugation chemistry.
Available in multiple small-scale pack sizes for research use.
Store protected from light and under inert gas for stability.

Pricing & Availability

6,965

Medchemexpress LLC DBCO-Val-Cit-PABC-PNP | 2994332-18-0 | 859.92 | C46H49N7O10 | 10 MG

DBCO-Val-Cit-PABC-PNP is a cleavable antibody-drug conjugate (ADC) linker containing a DBCO group for strain-promoted alkyne-azide cycloaddition (SPAAC) and a Val-Cit-PABC protease-cleavable spacer. It is supplied as a solid reagent for research use in ADC synthesis.

Contains DBCO for copper-free SPAAC click chemistry.
Protease-cleavable Val-Cit-PABC spacer for enzyme-triggered payload release.
Molecular weight 859.92 and formula C46H49N7O10.
Available in small pack sizes suitable for synthesis, including 10 mg.

Pricing & Availability

6,966

Medchemexpress LLC Azido-peg3-val-cit-pab-pnp | 2055047-18-0 | MFCD30527416 | 99.1% | 773.79 | C34H47N9O12 | 10 MG

Azido-PEG3-Val-Cit-PAB-PNP is a cleavable three-unit PEG linker bearing an azide functional group, designed for use in bioconjugation and the synthesis of antibody-drug conjugates and PROTACs. It contains a protease-cleavable Val-Cit dipeptide and a para-aminobenzyl spacer with a PNP leaving group, enabling enzymatic payload release and click-based conjugation.

Cleavable Val-Cit-PAB motif for enzyme-triggered payload release.
Azide functional group compatible with CuAAC and SPAAC click reactions.
Three-unit PEG spacer improves solubility and flexibility in conjugates.
Available in small laboratory quantities for synthetic applications.
High reported purity suitable for bioconjugation workflows.

Pricing & Availability

6,967

Medchemexpress LLC Acetylene-linker-Val-Cit-PABC-MMAE | 1411977-95-1 | 95.2% | 1307.62 g/mol | C67H106N10O16 | 10 MG

Acetylene-linker-Val-Cit-PABC-MMAE is an antibody-drug conjugate (ADC) linker-payload conjugate that couples an alkyne-bearing cleavable Val-Cit-PABC linker to the tubulin inhibitor MMAE. The acetylene handle enables copper-catalyzed azide-alkyne cycloaddition (CuAAC) for bioconjugation, while the Val-Cit-PABC motif permits proteolytic release of the payload after internalization.

Contains an alkyne handle for CuAAC click chemistry
Val-Cit-PABC motif enables proteolytic release of MMAE
Provides a cleavable linker-payload architecture for ADC development
Molecular formula C67H106N10O16 and molecular weight 1307.62 g/mol
Typical purity approximately 95.2%
Supplied as a 10 mg sample; store at 4°C under inert atmosphere

Pricing & Availability

6,968

Medchemexpress LLC Mal-amide-PEG8-Val-Ala-PAB-PNP | 2210247-59-7 | 95.7% | 1033.08 | C48H68N6O19 | 25 MG

Mal-amide-PEG8-Val-Ala-PAB-PNP is a cleavable antibody-drug conjugate (ADC) linker used to attach cytotoxic payloads to antibodies and enable enzymatic release inside target cells. It combines a maleimide reactive group, a PEG8 spacer, a Val-Ala protease-cleavable dipeptide, a para-aminobenzyl self-immolative spacer, and a p-nitrophenyl carbonate leaving group.

Cleavable by proteases to enable intracellular payload release.
Maleimide group enables thiol conjugation to antibody cysteines.
PEG8 spacer improves solubility and linker flexibility.
High purity suitable for research bioconjugation (~95.7%).
Available in small mg-scale packs for laboratory conjugation workflows.

Pricing & Availability

6,969

Medchemexpress LLC Fmoc-val-cit-pab-duocarmycin | 99.4% | 1050.59 g·mol⁻¹ | C58H60ClN7O10 | 1 MG

Fmoc-Val-Cit-PAB-Duocarmycin is a drug-linker conjugate intended for use in antibody-drug conjugate (ADC) research. It couples a Duocarmycin payload to an Fmoc-Val-Cit-PAB cleavable linker, and is supplied as a solid with reported high purity and defined storage conditions.

High purity (99.44%).
Molecular weight 1050.59 g·mol⁻¹.
Molecular formula C58H60ClN7O10.
Solid form, white to yellow.
Storage: powder -20 °C; in solvent -80 °C for 6 months or -20 °C for 1 month.

Pricing & Availability

6,970

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

Fmoc-Val-Ala-aminomethyl acetate is a valine-alanine protease-cleavable linker reagent used in the synthesis of antibody-drug conjugates (ADCs) for research applications. It is characterized by LCMS-reported purity and is used to introduce a cleavable spacer between antibody and payload in linker-drug constructs.

Protease-cleavable valine-alanine linker.
Suitable for ADC synthesis and linker-drug conjugation.
Purity 97.3% (LCMS).
Molecular weight 481.54 g/mol.
Molecular formula C26H31N3O6.
Supplied as a 1 G pack for research use.

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6,971

STA PHARMACEUTICAL US LLC Fmoc-N-methyl-L-norvaline | 10 g | CAS 252049-05-1 | MDL MFCD01861326

Fmoc-N-methyl-L-norvaline is a Amino Acid reagent (Subcategory: N-Me AA) sold by WuXi TIDES. Offered in 10 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 252049-05-1
- MDL: MFCD01861326
- InChIKey: HKELUUGCKFRJQM-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)-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

6,972

STA PHARMACEUTICAL US LLC Fmoc-L-IsoValine-OH | 1 g | CAS 857478-30-9 | MDL MFCD12031688

Fmoc-L-IsoValine-OH is a Amino Acid reagent (Subcategory: Alpha-alkylated) sold by WuXi TIDES. Offered in 1 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 857478-30-9
- MDL: MFCD12031688
- InChIKey: DZSLHAJXIQCMLR-FQEVSTJZSA-N
- Molecular Weight: 339.391
- Molecular Formula: C20H21NO4
- 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)amino)-2-methylbutanoic acid
- SMILES: CC[C@@](NC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)(C)C(O)=O

Pricing & Availability

6,973

Medchemexpress LLC Mc-val-cit-pab-clindamycin | 1639793-13-7 | 100.0% | 1016.08 g/mol | C46H72Cl2N8O11S | 5 MG

MC-Val-Cit-PAB-clindamycin is a drug-linker conjugate used in antibody-drug conjugate (ADC) research that links the protein-synthesis inhibitor clindamycin to a cleavable Val-Cit-PAB linker, producing a payload module with reported antitumor activity.

High reported purity: 99.99%.
Chemical formula: C46H72Cl2N8O11S.
Molecular weight: 1016.08 g/mol.
Intended for ADC research and preclinical evaluation.
Supplied as a 5 mg pack.

Pricing & Availability

6,974

Medchemexpress LLC Dmba-sil-mal-mmae | 2923885-49-6 | >98.0% | 1403.65 | C72H106N8O20 | 10 MG

A cytotoxin-linker conjugate pairing the antimitotic agent monomethyl auristatin E (MMAE) with a DMBA-SIL-Mal linker for use in antibody-drug conjugate (ADC) research, synthesis, and analytical characterization.

Contains monomethyl auristatin E (MMAE) tubulin inhibitor payload.
Designed for ADC synthesis and analytical characterization.
Available in multiple research-scale sizes, including 10 mg.
Recommended storage: sealed at -20°C; in solvent, -80°C for long-term storage.
Molecular weight 1403.65 and molecular formula C72H106N8O20.

Pricing & Availability

6,975

STA PHARMACEUTICAL US LLC Fmoc-3,4-dehydro-L-Val-OH | 5 g | CAS 1932087-73-4 | InChIKey KSDLNKHXKRYOST-SFHVURJKSA-N

Fmoc-3,4-dehydro-L-Val-OH is a Amino Acid reagent (Subcategory: Val) sold by WuXi TIDES. Offered in 5 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 1932087-73-4
- MDL: No data
- InChIKey: KSDLNKHXKRYOST-SFHVURJKSA-N
- Molecular Weight: 337.375
- Molecular Formula: C20H19NO4
- 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: (S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-methylbut-3-enoic acid
- SMILES: C=C([C@@H](C(O)=O)NC(OCC1C2=C(C3=C1C=CC=C3)C=CC=C2)=O)C

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Amino Acids

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Medchemexpress LLC MEDCHEMEXPRESS LLC Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

BIOHIPPO InVivoMAb Anti-Human ARG1/Arginase-1 Antibody (Iv0120), 100 µg Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Mal-peg2-val-cit-paba-pnp | 1345681-52-8 | 96.8% | 755.73 | C34H41N7O13 | 25 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC DBCO-Val-Cit-PABC-PNP | 2994332-18-0 | 859.92 | C46H49N7O10 | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Azido-peg3-val-cit-pab-pnp | 2055047-18-0 | MFCD30527416 | 99.1% | 773.79 | C34H47N9O12 | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Acetylene-linker-Val-Cit-PABC-MMAE | 1411977-95-1 | 95.2% | 1307.62 g/mol | C67H106N10O16 | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Mal-amide-PEG8-Val-Ala-PAB-PNP | 2210247-59-7 | 95.7% | 1033.08 | C48H68N6O19 | 25 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-duocarmycin | 99.4% | 1050.59 g·mol⁻¹ | C58H60ClN7O10 | 1 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 | 1 G Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Mc-val-cit-pab-clindamycin | 1639793-13-7 | 100.0% | 1016.08 g/mol | C46H72Cl2N8O11S | 5 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Dmba-sil-mal-mmae | 2923885-49-6 | >98.0% | 1403.65 | C72H106N8O20 | 10 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More