| Category | m-PEGn-acid |
| Molecular Formula | C4H8O3 |
| Molecular Weight | 104.10 |
| Appearance | Pale Yellow or Colorless Oily Matter |
| Storage | Store at 2-8°C |
3-Methoxypropionic acid
3-Methoxypropionic acid is a short-chain ether-containing carboxylic acid used as a synthetic building block for ester, amide, and spacer derivatization. The carboxyl group provides a convenient site for activation and coupling, while the methoxyethyl portion contributes a compact, moderately polar structural element to the resulting derivative. The compound can be incorporated into multistep organic synthesis when a small carboxylic acid with an ether substituent is required. Coupling reagent selection, solvent, activation method, and compatibility with other functional groups should be considered for the intended transformation.
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| Synonyms | Propanoic acid, 3-methoxy-; β-Methoxypropionic acid; m-PEG1-COOH |
| IUPACName | 3-methoxypropanoic acid |
| CanonicalSMILES | COCCC(=O)O |
| InChI | InChI=1S/C4H8O3/c1-7-3-2-4(5)6/h2-3H2,1H3,(H,5,6) |
| InChIKey | YSIKHBWUBSFBRZ-UHFFFAOYSA-N |
| BoilingPoint | 116°C at 9 mmHg |
| Purity | ≥95% |
| Density | 1.108 g/mL at 25°C |
| Solubility | Soluble in Chloroform, Methanol |
| ExactMass | 104.047344113 |
| LogP | 0.10750 |
| Pictogram | Irritant |
| Signal | Warning |
| PrecautionaryStatementCodes | P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 |
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