5,5'-Methylenedisalicylic acid
- CAS NO.：122-25-8
- Empirical Formula: C15H12O6
- Molecular Weight: 288.25
- MDL number: MFCD00016506
- EINECS: 204-530-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-04-23 13:52:06
What is 5,5'-Methylenedisalicylic acid?
Chemical properties
cream powder
Purification Methods
Crystallise the acid from Me2CO, *C6H6 or CHCl3/MeOH (m 268-268o). It has max at 312nm ( 7530)in EtOH. [Cushman & Kanamathareddy Tetrahedron 46 1406 1990.]
Properties of 5,5'-Methylenedisalicylic acid
| Melting point: | 235-242 °C |
| Boiling point: | 350.49°C (rough estimate) |
| Density | 1.2709 (rough estimate) |
| refractive index | 1.4413 (estimate) |
| pka | 2.94±0.10(Predicted) |
| form | Powder |
| color | Cream |
| Water Solubility | insoluble |
| CAS DataBase Reference | 122-25-8(CAS DataBase Reference) |
| EPA Substance Registry System | 5,5'-Methylenedisalicylic acid (122-25-8) |
Safety information for 5,5'-Methylenedisalicylic acid
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral 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. 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 5,5'-Methylenedisalicylic acid
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