5,5-BIS(HYDROXYMETHYL)-2-PHENYL-1,3-DIOXANE
- CAS NO.：2425-41-4
- Empirical Formula: C12H16O4
- Molecular Weight: 224.25
- MDL number: MFCD00085385
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-07-04 15:30:06
What is 5,5-BIS(HYDROXYMETHYL)-2-PHENYL-1,3-DIOXANE?
Preparation
To a flask containing a solution of 136.0 gm (1.0 mole) of pentaerythritol in 1 liter of water (25-29°C) is added 5.0 ml of concentrated hydrochloric acid and then 106 gm (1.0 mole) of benzaldehyde is dropwise added (approx. 2 - 3 hr). The mixture is stirred for 3-5 hr and then the precipitated product is filtered, recrystallized from 1500 ml of slightly alkaline water ( N a 2C03) , filtered, and dried. The product is again recrystallized from toluene (1.3-1.5 liters) to afford 175 gm (80%), m.p. 133.5°C.
Properties of 5,5-BIS(HYDROXYMETHYL)-2-PHENYL-1,3-DIOXANE
| Melting point: | 135 °C |
| Boiling point: | 325.65°C (rough estimate) |
| Density | 1.1697 (rough estimate) |
| refractive index | 1.5130 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| form | powder to crystal |
| pka | 14.27±0.10(Predicted) |
| color | White to Almost white |
| CAS DataBase Reference | 2425-41-4(CAS DataBase Reference) |
Safety information for 5,5-BIS(HYDROXYMETHYL)-2-PHENYL-1,3-DIOXANE
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
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-BIS(HYDROXYMETHYL)-2-PHENYL-1,3-DIOXANE
| InChIKey | DHWCGYXHBIWIPM-UHFFFAOYSA-N |
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