diethyl oxopropanedioate
Diethyl ketomalonate
CAS: 609-09-6
Molecular Formula: C7H10O5
diethyl oxopropanedioate - Names and Identifiers
| Name | Diethyl ketomalonate |
| Synonyms | Diethyl mesoxalate Diethyloxomalonate Diethyl mesoxalate Diethyl oxomalonate Diethyl ketomalonate Oxomalonic acid diethyl diethyl oxopropanedioate Ketomalonic acid diethyl Diethyl KETOMALONATE ester 2-Oxopropanedioic acid diethyl Oxopropanedioic acid diethyl ester 2-Oxopropanedioic acid diethyl ester Diethyl ketomalonate, (Diethyl mesoxalate |
| CAS | 609-09-6 |
| EINECS | 210-176-2 |
| InChI | InChI=1/C7H10O5/c1-3-11-6(9)5(8)7(10)12-4-2/h3-4H2,1-2H3 |
| InChIKey | DBKKFIIYQGGHJO-UHFFFAOYSA-N |
diethyl oxopropanedioate - Physico-chemical Properties
| Molecular Formula | C7H10O5 |
| Molar Mass | 174.15 |
| Density | 1.142 g/mL at 25 °C (lit.) |
| Melting Point | -70°C |
| Boling Point | 208-210 °C (lit.) |
| Flash Point | >230°F |
| Water Solubility | Fully miscible with water. |
| Solubility | Chloroform (Slightly), Methanol |
| Vapor Presure | 0.208mmHg at 25°C |
| Appearance | liquid |
| Specific Gravity | 1.142 |
| Color | green-yellow |
| Merck | 14,5913 |
| BRN | 971873 |
| Storage Condition | Inert atmosphere,Room Temperature |
| Sensitive | Moisture Sensitive |
| Refractive Index | n20/D 1.415 |
| MDL | MFCD00009121 |
| Physical and Chemical Properties | Yellow liquid. Boiling point 208-210 ℃, relative density 1.142, refractive index 1.4150. Insoluble in water, soluble in alcohol, ether. |
diethyl oxopropanedioate - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 21 |
| TSCA | T |
| HS Code | 29183000 |
| Hazard Note | Irritant |
| Hazard Class | IRRITANT, MOISTURE S |
diethyl oxopropanedioate - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | for organic synthesis. |
| production method | nitrogen trioxide gas is introduced into the cooled diethyl malonate, the reactant is turned green, the reaction solution was gradually warmed to room temperature and then kept for 2 days or more. Distillation was performed under reduced pressure to collect a fraction at 103-108 ° C. (2.0kPa) to obtain diethyl ketomalonate. The yield ranged from 74% to 76%. |
Last Update：2024-04-09 21:21:28
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