dibutyl propanedioate
Malonic Acid Dibutyl Ester
CAS: 1190-39-2
Molecular Formula: C11H20O4
dibutyl propanedioate - Names and Identifiers
| Name | Malonic Acid Dibutyl Ester |
| Synonyms | DIBUTYL MALONATE DI-N-BUTYL MALONATE dibutyl propanedioate Malonicaciddinbutylester 2,2-dibutylpropanedioate Malonic Acid Dibutyl Ester Malonic acid, dibutyl ester MALONIC ACID DI-N-BUTYL ESTER Malonic acid di-n-butyl ester propanedioic acid dibutyl ester |
| CAS | 1190-39-2 |
| InChI | InChI=1/C11H20O4/c1-3-5-7-14-10(12)9-11(13)15-8-6-4-2/h3-9H2,1-2H3 |
dibutyl propanedioate - Physico-chemical Properties
| Molecular Formula | C11H20O4 |
| Molar Mass | 216.27 |
| Density | 1 g/cm3 |
| Melting Point | -83°C |
| Boling Point | 78°C 20mm |
| Flash Point | 63°C |
| Vapor Presure | 0.0204mmHg at 25°C |
| pKa | 11.82±0.46(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.4250-1.4280 |
| MDL | MFCD00053795 |
| Physical and Chemical Properties | Colorless liquid. Melting point -83 ℃, boiling point 251-252 ℃,137 ℃(1.86kPa), relative density 0.9824(20/4 ℃), refractive index 1.4162, flash point 88 ℃. Soluble in ethanol, ether, acetone, benzene, acetic acid and other organic solvents, insoluble in water. |
dibutyl propanedioate - Risk and Safety
| Safety Description | S23 - Do not breathe vapour. S24/25 - Avoid contact with skin and eyes. |
| HS Code | 29161900 |
dibutyl propanedioate - Nature
Open Data Verified Data
colorless liquid. The relative density was 0. 9824. Melting Point -83 °c. Boiling point 251~252 deg C. Refractive index 4162. Flash point 88 degrees Celsius. Insoluble in water, soluble in ethanol, ether, acetone, benzene, acetic acid and other organic solvents.
Last Update：2024-01-02 23:10:35
dibutyl propanedioate - Preparation Method
Open Data Verified Data
dibutyl malonate is produced by esterification of sodium malonate and butanol in the presence of sulfuric acid, and then the product is refined by neutralization, washing with water, distillation and the like. Sodium malonate is prepared by cyanation of chloroacetic acid followed by hydrolysis, and the process is the same as that of dimethyl malonate.
Last Update：2022-01-01 10:33:43
dibutyl propanedioate - Use
Open Data Verified Data
raw materials for organic synthesis. In the pharmaceutical industry for the synthesis of sulfonamine-6-methoxypyrimidine and other drugs.
Last Update：2022-01-01 10:33:42
dibutyl propanedioate - Safety
Open Data Verified Data
- This product has low toxicity, can stimulate the respiratory tract, and has slight corrosiveness. General chemical treatment.
- This product is packaged in an iron drum and stored and transported according to the regulations on combustible chemicals.
Last Update：2022-01-01 10:33:43
dibutyl propanedioate - Reference Information
| use | dibutyl malonate can be used as an intermediate in synthetic materials for scientific research and development and chemical experimental research. Organic synthetic raw materials are used in the pharmaceutical industry to synthesize drugs such as sulfa-6-methoxypyrimidine. |
| safety | dibutyl malonate has low toxicity, can stimulate respiratory tract, is slightly corrosive, and can be treated as general chemicals. |
| chemical properties | colorless liquid. Melting point -83 ℃, boiling point 251-252 ℃,137 ℃(1.86kPa), relative density 0.9824(20/4 ℃), refractive index 1.4162, flash point 88 ℃. Soluble in ethanol, ether, acetone, benzene, acetic acid and other organic solvents, insoluble in water. |
| production method | sodium malonate and butanol undergo esterification reaction in the presence of sulfuric acid to generate dibutyl malonate, which is then refined through neutralization, water washing, distillation and other refining processes to become finished products. Sodium malonate is prepared by hydrolysis after cyanidation of chloroacetic acid, and the process is the same as dimethyl malonate. Raw material consumption quota: chloroacetic acid (>95%)500kg/t, sodium cyanide 270kg/t, butanol 860kg/t. |
Last Update：2024-04-09 20:49:11
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