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CAS RN: 126-30-7 | Product Number: D0791
2,2-Dimethyl-1,3-propanediol
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Purity: >98.0%(GC)
Synonyms:
- 2,2-Bis(hydroxymethyl)propane
- 2,2-Dihydroxy-2,2-dimethylpropane
- Neopentyl Glycol
Product Documents:
| Size | Unit Price | Philadelphia, PA | Portland, OR | Japan* | Quantity |
|---|---|---|---|---|---|
| 25G |
$18.00
|
2 | 2 | ≥60 |
|
| 500G |
$30.00
|
6 | 4 | ≥100 |
|
* Items in stock locally ship in 1-2 business days. Items from Japan stock are able to ship from a US warehouse within 2 weeks. Please contact TCI for lead times on items not in stock. Excludes regulated items and items that ship on ice.
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| Product Number | D0791 |
| Purity / Analysis Method | >98.0%(GC) |
| Molecular Formula / Molecular Weight | C__5H__1__2O__2 = 104.15 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature | Room Temperature (Recommended in a cool and dark place, <15°C) |
| Store Under Inert Gas | Store under inert gas |
| Condition to Avoid | Hygroscopic |
| CAS RN | 126-30-7 |
| Reaxys Registry Number | 605291 |
| PubChem Substance ID | 87567416 |
| SDBS (AIST Spectral DB) | 2229 |
| Merck Index (14) | 6458 |
| MDL Number | MFCD00004685 |
Specifications
| Appearance | White to Almost white powder to crystal |
| Purity(GC) | min. 98.0 % |
| Melting point | 127.0 to 130.0 °C |
| Solubility in Methanol | almost transparency |
Properties (reference)
| Melting Point | 128 °C |
| Boiling Point | 210 °C |
| Solubility in water | Soluble |
| Degree of solubility in water | 830 g/l 20 °C |
GHS
| Pictogram |
|
| Signal Word | Warning |
| Hazard Statements | H315 : Causes skin irritation. H319 : Causes serious eye irritation. |
| Precautionary Statements | P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ eye protection/ face protection. P337 + P313 : If eye irritation persists: Get medical advice/ attention. P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P302 + P352 : IF ON SKIN: Wash with plenty of soap and water. P332 + P313 : If skin irritation occurs: Get medical advice/ attention. P362 : Take off contaminated clothing and wash before reuse. |
Related Laws:
| RTECS# | TY5775000 |
Transport Information:
| HS Number | 2905.39.2000 |
Application
TCI Practical Example: Acetal Protection of an Aldehyde
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Used Chemicals
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Procedure
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Furfural (1.66 mL, 20 mmol) was dissolved in toluene (30 mL) and then 2,2-dimethyl-1,3-propanediol (2.6 g, 25 mmol) and p-TsOH·H2O (30 mg, 0.17 mmol) were added. A Dean-Stark apparatus was attached and the reaction mixture was stirred for 3 h at reflux temperature. After adding ethyl acetate (50 mL), the organic layer was washed with brine (30 mL). The organic layer was dried with anhydrous sodium sulfate and concentrated under reduced pressure. Purification of the crude product by silica gel chromatography (hexane:ethyl acetate = 10:1) afforded 1 (3.2 g, 88% yield) as a yellow oil.
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Experimenter’s Comments
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The reaction solution was monitored by UPLC.
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Analytical Data
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Compound 1
1H NMR (400 MHz, CDCl3); δ 7.45 (m, 1H), 6.46 (m, 1H), 6.37 (m, 1H,), 5.48 (s, 1H), 3.77 (d, J = 10.8 Hz, 2H), 3.64 (d, J = 10.6 Hz, 2H), 1.28 (s, 3H), 0.79 (s, 3H).
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Other Reference
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- Gold(i)-catalysed synthesis of conjugated trienes
PubMed Literature
Product Documents (Note: Some products will not have analytical charts available.)
Safety Data Sheet (SDS)
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Specifications
C of A & Other Certificates
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Analytical Charts
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