Dimethyl methoxymethylenemalonate
- CAS No.
- 22398-14-7
- Chemical Name:
- Dimethyl methoxymethylenemalonate
- Synonyms
- DiMethyl 2-(MethoxyMethylene)Malonate;MMMM;Dimethyl 2-(methoxymethylene);Dimethylmethoxymethylenmalonat;DIMETHYL METHOXYMETHYLENEMALONATE;DimethylMethoxymethylenemalonate>Dimethyl methoxymethylenemalonate, 98+%;thyl 2-(methoxymethylidene)propanedioate;imethyl2-(methoxymethylidene)propanedioate;METHOXYMETHYLENEMALONIC ACID DIMETHYL ESTER
- CBNumber:
- CB7686827
- Molecular Formula:
- C7H10O5
- Molecular Weight:
- 174.15
- MDL Number:
- MFCD00038225
- MOL File:
- 22398-14-7.mol
- MSDS File:
- SDS
| Melting point | 40-44 °C |
|---|---|
| Boiling point | 98 °C (0.5 mmHg) |
| Density | 1.2311 (rough estimate) |
| refractive index | 1.4390 (estimate) |
| Flash point | 158 °C |
| storage temp. | Sealed in dry,Room Temperature |
| form | Crystalline Solid |
| color | White |
| InChI | InChI=1S/C7H10O5/c1-10-4-5(6(8)11-2)7(9)12-3/h4H,1-3H3 |
| InChIKey | RHFZTBSULNJWEI-UHFFFAOYSA-N |
| SMILES | C(OC)(=O)/C(=C\OC)/C(OC)=O |
| CAS DataBase Reference | 22398-14-7(CAS DataBase Reference) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS06,GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H301-H315-H317-H319-H334-H335 | |||||||||
| Precautionary statements | P261-P284-P301+P310a-P305+P351+P338-P405-P501a | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 43-36/38-22 | |||||||||
| Safety Statements | 37/39-26-24 | |||||||||
| HS Code | 29171990 | |||||||||
| NFPA 704 |
|
Dimethyl methoxymethylenemalonate price More Price(11)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | M1207 | Dimethyl Methoxymethylenemalonate >98.0%(GC) | 22398-14-7 | 25g | $32 | 2022-04-27 | Buy |
| TCI Chemical | M1207 | Dimethyl Methoxymethylenemalonate >98.0%(GC) | 22398-14-7 | 500g | $361 | 2021-12-16 | Buy |
| Alfa Aesar | B23803 | Dimethyl methoxymethylenemalonate, 98+% | 22398-14-7 | 10g | $32.4 | 2021-12-16 | Buy |
| Alfa Aesar | B23803 | Dimethyl methoxymethylenemalonate, 98+% | 22398-14-7 | 50g | $86.1 | 2021-12-16 | Buy |
| Alfa Aesar | B23803 | Dimethyl methoxymethylenemalonate 98+% | 22398-14-7 | 250g | $291 | 2021-12-16 | Buy |
Dimethyl methoxymethylenemalonate Chemical Properties,Uses,Production
Chemical Properties
white crystalline solid
Uses
Dimethyl 2-(Methoxymethylene)malonate is a useful synthetic intermediate. It is used in preparation of (phenoxyethoxy)quinolones with antimalarial activities. It is also a reagent used in the synthesis of bicyclic pyridones prepn. as oral selective CB2 agonists with anti-pruritic activity.
Synthesis
264.2 g (2.0 mol) of dimethyl malonate, 637 g (6 mol) of trimethyl orthoformate and 20.4 g (0.2 mol) of acetic anhydride containing 2 g of H2 SO4 -activated bentonite were initially introduced into a reaction flask provided with a stirrer, thermometer, dropping funnel, column and reflux condensor, and the mixture was heated to boiling. 40.8 g (0.4 mol) of acetic anhydride was continuously metered for6 hours. The low boiling component formed was distilled off at a head temperature of 62° to 67° C. The bottom temperature increased slowly from 109° to 133° C. After 8 hours; the excess orthoester was distilled off at reduced pressure. 40.8 g (0.4 mol) of acetic anhydride was added to the remaining reaction mixture, and the mixture was heated at 140° C. for 2 hours. The catalyst was filtered off, and the crude product was distilled in vacuo. 330.4 g of dimethyl methoxymethylenemalonate (98% pure), having a melting point of 44° to 46° C., were obtained at 0.5 mbar and a head temperature of 110° C.
Dimethyl methoxymethylenemalonate Preparation Products And Raw materials
Raw materials
Preparation Products
Dimethyl methoxymethylenemalonate Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| DSHare Pharmaceutical Science Technology Co.Ltd. | +8613962878782 | wei.zhu@dshare.com.cn | China | 42 | 58 |
| Shenzhen Nexconn Pharmatechs Ltd | +86-755-89396905 +86-15013857715 | admin@nexconn.com | China | 10312 | 58 |
| Shanghai Worldyang Chemical Co.,Ltd. | +86-021-56795779 +8613651600618 | sales@worldyachem.com | China | 1080 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49391 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29825 | 58 |
| SHANGHAI T&W PHARMACEUTICAL CO., LTD. | +86-021-61551413 +8618813727289 | contact@trustwe.com | China | 5738 | 58 |
| Neostar United (Changzhou) Industrial Co., Ltd. | +86-519-519-85557386 | marketing1@neostarunited.com | China | 10906 | 58 |
| Kindchem(Nanjing)Co.,Ltd | +86-025-025-85281586 +8618651653755 | sales@kindchem.cn | China | 1227 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | 0551-65418671 | sales@tnjchem.com | China | 34571 | 58 |
| WinWin Chemical CO., Limited | +86-0086-577-64498589 +86-15355981851 | sales@win-winchemical.com | China | 14278 | 58 |
View Lastest Price from Dimethyl methoxymethylenemalonate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2020-01-13 | DIMETHYL METHOXYMETHYLENEMALONATE
22398-14-7
|
US $9.80 / KG | 1g | ≥99% | 100kg | Career Henan Chemical Co |
-
- DIMETHYL METHOXYMETHYLENEMALONATE
22398-14-7
- US $9.80 / KG
- ≥99%
- Career Henan Chemical Co
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