Carboxylic acids and derivatives

eMolecules​ 104839-00-1 | Ambeed | (S)-2-((tert-Butoxycarbonyl)amino)-3-ethoxypropanoic acid | 100mg | 491665418 | A404978 | MFCD06797558 | 233.264 | C10H19NO5

Medchem Express | FH535 | 10mg | 446266435 | HY-15721 | 108409-83-2 | MFCD01212888 | 361.190 | C13H10Cl2N2O4S

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eMolecules​ 2128735-21-5 | Boc-aminooxy-ethyl-SS-propanol | Broadpharm269.370 | C9H19NO4S2 | 98.000 | CC(C)(C)OC(=O)NOCCSSCCO | 500mg | 550804399

Boc-aminooxy-ethyl-SS-propanol | Broadpharm | 2128735-21-5269.370 | C9H19NO4S2 | 98.000 | CC(C)(C)OC(=O)NOCCSSCCO | 500mg | 550804399

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eMolecules​ 2007910-58-7 | acetic acid;tert-butyl exo-3-amino-8-azabicyclo[3.2.1]octane-8-carboxylate | Pharmablock | MFCD30471659 | 286.372 | C14H26N2O4 | 97.000 | CC(O)=O.CC(C)(C)OC(=O)N1[C@H]2CC[C@@H]1C[C@@H](N)C2 | 25mg | 551053902

acetic acid;tert-butyl exo-3-amino-8-azabicyclo[3.2.1]octane-8-carboxylate | Pharmablock | 2007910-58-7 | MFCD30471659 | 286.372 | C14H26N2O4 | 97.000 | CC(O)=O.CC(C)(C)OC(=O)N1[C@H]2CC[C@@H]1C[C@@H](N)C2 | 25mg | 551053902

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Medchemexpress LLC Maleimido-tri(ethylene glycol)-propionic acid | 518044-40-1 | 98.0% | 301.29 | C13H19NO7 | 100 MG

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Maleimido-tri(ethylene glycol)-propionic acid is a PEG-based maleimide linker used as a cleavable linker in antibody-drug conjugate (ADC) synthesis and as a PROTAC linker. It has formula C13H19NO7, molecular weight 301.29 g·mol⁻¹, and is supplied at 98.0% purity. Recommended storage: pure form -20°C (up to 3 years) or 4°C (up to 2 years); in solution -80°C (6 months) or -20°C (1 month).

• Cleavable maleimide PEG3 linker for site-specific cysteine conjugation.
• Suitable for ADC and PROTAC synthesis.
• High purity, 98.0%.
• Molecular weight 301.29 g·mol⁻¹.
• CAS number 518044-40-1.
• Available in quantities from milligram to gram scale, including 100 mg.
• Store frozen or refrigerated according to storage guidance.

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eMolecules​ 1158751-03-1 | Ambeed | 1-[(tert-Butoxy)carbonyl]-3-ethylpyrrolidine-3-carboxylic acid | 100mg | 528573199 | A978814 | MFCD12406578 | 243.303 | C12H21NO4

ChemScene | Methyl 2-(2-chloropyrimidin-4-yl)acetate | 100mg | 654765247 | CS-0214712 | 1216129-71-3 | MFCD13705339 | 186.600 | C7H7ClN2O2

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eMolecules​ 135904-71-1 | H-D-Asp(OtBu)-OtBu??HCl | Ambeed | MFCD09263345 | 281.780 | C12H24ClNO4 | 95.000 | Cl.CC(C)(C)OC(=O)C[C@@H](N)C(=O)OC(C)(C)C | 1g | 570567224

H-D-Asp(OtBu)-OtBu??HCl | Ambeed | 135904-71-1 | MFCD09263345 | 281.780 | C12H24ClNO4 | 95.000 | Cl.CC(C)(C)OC(=O)C[C@@H](N)C(=O)OC(C)(C)C | 1g | 570567224

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eMolecules​ 179605-63-1 | (S)-Octahydro-pyrido[1,2-a]pyrazine | J & W PharmLab LLC | MFCD11858492 | 140.230 | C8H16N2 | 96.000 | C1CCN2CCNC[C@@H]2C1 | 5g | 415670883

(S)-Octahydro-pyrido[1,2-a]pyrazine | J & W PharmLab LLC | 179605-63-1 | MFCD11858492 | 140.230 | C8H16N2 | 96.000 | C1CCN2CCNC[C@@H]2C1 | 5g | 415670883

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eMolecules​ 16343-08-1 | 1-Hexaneboronic acid | Oakwood Chemicals259.990 | C12H30B2O4 | 95.000 | CCCCCCB(O)O.CCCCCCB(O)O | 1g | 480168714

1-Hexaneboronic acid | Oakwood Chemicals | 16343-08-1259.990 | C12H30B2O4 | 95.000 | CCCCCCB(O)O.CCCCCCB(O)O | 1g | 480168714

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eMolecules​ 31161-71-4 | ChemScene | Benzyl tetradecanoate | 100mg | 599130007 | CS-0168205 | 318.501 | C21H34O2

ChemScene | 3-Chloro-1H-pyrazolo[34-c]pyridine | 100mg | 569145716 | CS-0101195 | 76006-14-9 | MFCD11846323 | 153.570 | C6H4ClN3

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Waters Corp Kairos Amino Acid Kit, High Throughput, Automation, Plasma and Urine Analysis

The Waters Kairos Amino Acid Kit – High Throughput (500+) Automation is a research-use-only kit designed for accurate and precise amino acid analysis in plasma and urine samples. Optimized for automation with liquid handling platforms, offering streamlined high-volume sample preparation and analysis.

• High throughput for analyzing over 500 samples.
• Automation ready for hands-free sample preparation.
• Accurate and precise amino acid analysis.
• Scalable reagents for automated platforms.
• Streamlined workflow with step-by-step protocol.
• Robust derivatization using AccQ·Tag chemistry.
• Stable derivatized samples for one week.
• Internal standards for reliable quantitation.
• Optimized LC and MS methods provided.

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eMolecules​ 2716849-27-1 | 2,2-Dimethyl-propionic acid 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-oxazol-2-ylmethyl ester | J & W PharmLab LLC309.170 | C15H24BNO5 | 96.000 | CC(C)(C)C(=O)OCc1ncc(o1)B1OC(C)(C)C(C)(C)O1 | 1g | 559837651

2,2-Dimethyl-propionic acid 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-oxazol-2-ylmethyl ester | J & W PharmLab LLC | 2716849-27-1309.170 | C15H24BNO5 | 96.000 | CC(C)(C)C(=O)OCc1ncc(o1)B1OC(C)(C)C(C)(C)O1 | 1g | 559837651

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eMolecules​ 2100306-74-7 | Methoxycarbonyl-PEG4-t-butyl ester | Broadpharm | MFCD30723232 | 364.435 | C17H32O8 | 95.000 | COC(=O)CCOCCOCCOCCOCCC(=O)OC(C)(C)C | 250mg | 343283749

Methoxycarbonyl-PEG4-t-butyl ester | Broadpharm | 2100306-74-7 | MFCD30723232 | 364.435 | C17H32O8 | 95.000 | COC(=O)CCOCCOCCOCCOCCC(=O)OC(C)(C)C | 250mg | 343283749

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eMolecules​ 2680539-11-9 | 6-Aza-bicyclo[3.1.1]heptane-1,6-dicarboxylic acid 6-tert-butyl ester | J&W PharmLab LLC241.287 | C12H19NO4 | 96.000 | CC(C)(C)OC(=O)N1C2CC1(CCC2)C(O)=O | 250mg | 705609409

6-Aza-bicyclo[3.1.1]heptane-1,6-dicarboxylic acid 6-tert-butyl ester | J&W PharmLab LLC | 2680539-11-9241.287 | C12H19NO4 | 96.000 | CC(C)(C)OC(=O)N1C2CC1(CCC2)C(O)=O | 250mg | 705609409

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Medchemexpress LLC 3-[(2-aminoethyl)dithio]propionic acid | 15579-00-7 | MFCD07357249 | 98.0% | 181.28 g/mol | C5H11NO2S2 | 25 MG

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Aminoethyl-SS-propionic acid is a cleavable disulfide-containing linker used in the synthesis of antibody-drug conjugates (ADCs). It provides a reducible linkage that allows intracellular release of cytotoxic payloads under reducing conditions; the compound is supplied as a solid with analytical documentation (COA, SDS, HNMR, LCMS).

• Cleavable disulfide linker enabling intracellular payload release.
• High purity suitable for research use (≈98% by HPLC).
• Multiple pack sizes available from milligram to gram scale.
• Characterized by HNMR and LCMS, with COA and SDS available.
• Functional groups: primary amine, carboxylic acid, and disulfide for bioconjugation.

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eMolecules​ 186800-61-3 | 16:0 Succinyl PE | Broadpharm814.027 | C41H77NNaO11P | 0.000 | [Na+].CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCCNC(=O)CCC(O)=O)OC(=O)CCCCCCCCCCCCCCC | 25mg | 718091969

16:0 Succinyl PE | Broadpharm | 186800-61-3814.027 | C41H77NNaO11P | 0.000 | [Na+].CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCCNC(=O)CCC(O)=O)OC(=O)CCCCCCCCCCCCCCC | 25mg | 718091969

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