3,5-Dinitro-2-methylbenzoic acid
- CAS NO.：28169-46-2
- Empirical Formula: C8H6N2O6
- Molecular Weight: 226.14
- MDL number: MFCD00007161
- EINECS: 248-880-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-12-25 13:23:17
What is 3,5-Dinitro-2-methylbenzoic acid?
Chemical properties
light yellow fine crystalline powder
The Uses of 3,5-Dinitro-2-methylbenzoic acid
2-Methyl-3,5-dinitrobenzoic acid was used to synthesis heterocyclic derivatives and in the synthesis of isoquinolone.
General Description
Synthesis of a series of heterocyclic derivatives of 3,5-dinitro-o-toluic acid has been reported.
Purification Methods
Crystallise the acid from H2O or aqueous EtOH. The ammonium salt forms yellow crystals from EtOH with m 218-219o, and the urea salt has m 189-190o (prisms from EtOH). [Beilstein 9 H 474, 9 II 323, 9 III 2316.]
Properties of 3,5-Dinitro-2-methylbenzoic acid
| Melting point: | 205-207 °C(lit.) |
| Boiling point: | 367.74°C (rough estimate) |
| Density | 1.6136 (rough estimate) |
| refractive index | 1.6000 (estimate) |
| pka | pK1:2.97 (25°C) |
| Water Solubility | Soluble in water. |
| BRN | 2622906 |
| CAS DataBase Reference | 28169-46-2(CAS DataBase Reference) |
| EPA Substance Registry System | Benzoic acid, 2-methyl-3,5-dinitro- (28169-46-2) |
Safety information for 3,5-Dinitro-2-methylbenzoic 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. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. 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 3,5-Dinitro-2-methylbenzoic acid
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