A2794526
2,2,5-Trimethyl-1,3-dioxane-4,6-dione , 97% , 3709-18-0
Synonym(s):
cycl-Isopropylidene methylmalonate;Methyl Meldrum’s acid;Methylmalonic acid cyclic isopropylidene ester
CAS NO.：3709-18-0
Empirical Formula: C7H10O4
Molecular Weight: 158.15
MDL number: MFCD00006637
EINECS: 223-050-7
| Pack Size | Price | Stock | Quantity |
| 1g | RMB64.80 | In Stock |
|
| 5g | RMB167.20 | In Stock |
|
| 10g | RMB288.80 | In Stock |
|
| 25g | RMB593.60 | In Stock |
|
| 50g | RMB1013.60 | In Stock |
|
| 100g | RMB2399.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 111-114 °C(lit.) |
| Boiling point: | 203.22°C (rough estimate) |
| Density | 1.1229 (rough estimate) |
| refractive index | 1.4610 (estimate) |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | Chloroform, Methanol |
| pka | 13.14±0.40(Predicted) |
| form | Solid |
| color | White to Off-White |
| BRN | 124044 |
| InChIKey | KJMCAXYHYPDRAV-UHFFFAOYSA-N |
Description and Uses
2,2,5-Trimethyl-1,3-dioxane-4,6-dione was used for trapping the adduct formed during the reaction between alkyl isocyanides and dialkyl acetylenedicarboxylates.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P305+P351+P338 |
| Safety Statements | 23-24/25 |
| WGK Germany | 3 |
| F | 10-21 |
| HS Code | 29171990 |
