Phenol esters
eMolecules Fmoc-(R)-3-Amino-4-(2-thienyl)-butyric acid | 269726-90-1 | MFCD01860985 | 1g
WuXi ChemSupply | Fmoc-(R)-3-Amino-4-(2-thienyl)-butyric acid | 1g | 599164383 | LN00145479 | 95.000 | 269726-90-1 | MFCD01860985 | 407.480 | C23H21NO4S
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eMolecules Guacetisal | 55482-89-8 | MFCD00864354 | 100mg
Ambeed | Guacetisal | 100mg | 491168435 | A158767 | | 55482-89-8 | MFCD00864354 | 286.283 | C16H14O5
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Medchemexpress LLC Acetylsalicylic acid-d4 | 97781-16-3 | MFCD06658866 | 97.7% | 184.18 g/mol | C9H4D4O4 | 5 MG
Aspirin-d4 (acetylsalicylic acid-d4) is a deuterium-labeled analogue of aspirin intended for use as an internal standard in quantitative GC-MS and LC-MS assays. Supplied in small vials, it provides a stable isotopic reference for analytical and pharmacokinetic studies requiring accurate measurement of aspirin levels.
- Deuterium-labeled internal standard for aspirin quantification.
- Suitable for GC-MS and LC-MS analytical methods.
- High purity (97.7%) for reliable analytical performance.
- Molecular formula C9H4D4O4; molecular weight 184.18 g/mol.
- Available in small vial package sizes, including 5 mg.
- CAS number 97781-16-3 for unambiguous identification.
Medchemexpress LLC Acetylsalicylic acid-d3 | 921943-73-9 | MFCD09752106 | 98.5% | C9H5D3O4 | 10MG
Aspirin-d3 (acetylsalicylic acid-d3) is the deuterium-labeled analogue of aspirin used as a stable isotope internal standard in analytical and research workflows. It is provided in small research-scale quantities and is intended for use in quantitative mass spectrometry, method development, and pharmacokinetic or metabolic studies.
- Deuterium-labeled internal standard for mass spectrometry.
- Chemical formula C9H5D3O4.
- High purity suitable for analytical workflows (≈98.5%).
- White to off-white solid, stable under standard storage conditions.
- Available in small milligram quantities for method development.
Sigma Aldrich Fine Chemicals Biosciences Acetaminophen Related Compound A United States Pharmacopeia (USP) Reference Standard | 2623-33-8 | 15MG
Acetaminophen Related Compound A United States Pharmacopeia (USP) Reference Standard | Mol Wt: 193.2 | 2623-33-8 | 15MG
eMolecules Pentafluorophenyl 5-bromo-thiophene-2-sulfonate | 885949-67-7 | MFCD06659553 | 1g
Oakwood Chemicals | Pentafluorophenyl 5-bromo-thiophene-2-sulfonate | 1g | 480120460 | 024755 | | 885949-67-7 | MFCD06659553 | 409.140 | C10H2BrF5O3S2
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