3-Methylsalicylic acid
Synonym(s):o-Cresotic acid;2-Hydroxy-3-methylbenzoic acid
- CAS NO.：83-40-9
- Empirical Formula: C8H8O3
- Molecular Weight: 152.15
- MDL number: MFCD00002448
- EINECS: 201-473-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-11-09 19:38:33
What is 3-Methylsalicylic acid?
Chemical properties
White To Slightly Reddish Crystalline Solid
The Uses of 3-Methylsalicylic acid
3-Methylsalicylic acid is used in manufacture of dyes.
The Uses of 3-Methylsalicylic acid
Toxicity is similar to salicylic acid. Used in manufacturing of dyes
The Uses of 3-Methylsalicylic acid
analgesic, antiseptic
Definition
ChEBI: A monohydroxybenzoic acid consisting of salicylic acid carrying a methyl group at the 3-position.
Synthesis Reference(s)
Synthesis, p. 758, 1984 DOI: 10.1055/s-1984-30960
General Description
3-Methylsalicylic acid reacts with WOCl4 to yield tungsten(VI) oxo-salicylate complexes.
Purification Methods
Crystallise the acid from water. [Beilstein 10 H 220, 10 II 131, 10 III 505, 10 IV 601.]
Properties of 3-Methylsalicylic acid
| Melting point: | 163-165 °C (lit.) |
| Boiling point: | 234.6°C (rough estimate) |
| Density | 1.2143 (rough estimate) |
| vapor pressure | 0.065-0.307Pa at 25℃ |
| refractive index | 1.4945 (estimate) |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | methanol: soluble5%, clear to slightly hazy (colorlessto faint brown) |
| form | Fine Powder |
| pka | pK1:2.99 (25°C) |
| color | Almost white |
| PH | 2.8 (1.5g/l, H2O, 20℃) |
| Water Solubility | 1.5 g/L (20 ºC) |
| Merck | 14,2581 |
| BRN | 2086811 |
| CAS DataBase Reference | 83-40-9(CAS DataBase Reference) |
| NIST Chemistry Reference | Hydroxytoluic acid(83-40-9) |
| EPA Substance Registry System | 3-Methylsalicylic acid (83-40-9) |
Safety information for 3-Methylsalicylic acid
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H318: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. |
Computed Descriptors for 3-Methylsalicylic acid
| InChIKey | WHSXTWFYRGOBGO-UHFFFAOYSA-N |
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product: 83-40-9 3-Methylsalicylic acid 99%
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