2,4-Dimethoxybenzoic acid
- CAS NO.：91-52-1
- Empirical Formula: C9H10O4
- Molecular Weight: 182.17
- MDL number: MFCD00002434
- EINECS: 202-074-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-05-25 18:01:09
What is 2,4-Dimethoxybenzoic acid?
Chemical properties
white to off-white powder
The Uses of 2,4-Dimethoxybenzoic acid
Yttrium and heavy lanthanide complexes is synthesised with 2, 4-dimethoxybenzoic acid and thermal and spectral features is studied. In the case of the electron-rich aromatic system 2,4-dimethoxybenzoic acid reduction of the intermediate HOBt ester is slow, and good.
Purification Methods
Crystallise the acid from water and dry it in a vacuum desiccator over H2SO4.. The S-benzylisothiuronium salt has m 158-159o (from CHCl3). [Beilstein 10 H 379, 10 I 177, 10 II 252, 10 III 1371, 10 IV 1422.] Aromatic acid impurities (to <0.05%) can be removed via the (±)--methylbenzylamine salt as described for 2,4-dichlorobenzoic acid [Ley & Yates Organic Process Research & Development 12 120 2008.]
Properties of 2,4-Dimethoxybenzoic acid
| Melting point: | 107-109 °C (lit.) |
| Boiling point: | 275.56°C (rough estimate) |
| Density | 1.2481 (rough estimate) |
| refractive index | 1.4500 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| pka | 4.36±0.10(Predicted) |
| form | Powder |
| color | White to off-white |
| Water Solubility | slightly soluble |
| BRN | 2210860 |
| CAS DataBase Reference | 91-52-1(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzoic acid, 2,4-dimethoxy-(91-52-1) |
| EPA Substance Registry System | Benzoic acid, 2,4-dimethoxy- (91-52-1) |
Safety information for 2,4-Dimethoxybenzoic acid
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 2,4-Dimethoxybenzoic acid
| InChIKey | GPVDHNVGGIAOQT-UHFFFAOYSA-N |
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