4-Ethyl-4-methyldihydro-2H-pyran-2,6(3H)-dione
3-Ethyl-3-methylglutaric anhydride
CAS: 6970-57-6
Molecular Formula: C8H12O3
4-Ethyl-4-methyldihydro-2H-pyran-2,6(3H)-dione - Names and Identifiers
| Name | 3-Ethyl-3-methylglutaric anhydride |
| Synonyms | 4-ethyl-4-methyloxane-2,6-dione 3-Ethyl-3-methylglutaric anhydride 3-ETHYL-3-METHYLGLUTARIC ANHYDRIDE 3-Ethyl-3-methylglutarec Anhydride beta-Methyl-beta-ethylglutaric anhydride 3-ETHYL-3-METHYLPENTANEDIOIC ACID ANHYDRIDE 4-Ethyl-4-methyldihydro-2H-pyran-2,6(3H)-dione 2H-Pyran-2,6(3H)-dione, 4-ethyldihydro-4-methyl- |
| CAS | 6970-57-6 |
| EINECS | 230-194-4 |
| InChI | InChI=1/C8H12O3/c1-3-8(2)4-6(9)11-7(10)5-8/h3-5H2,1-2H3 |
4-Ethyl-4-methyldihydro-2H-pyran-2,6(3H)-dione - Physico-chemical Properties
| Molecular Formula | C8H12O3 |
| Molar Mass | 156.18 |
| Density | 1.058g/mLat 25°C(lit.) |
| Boling Point | 185°C20mm Hg(lit.) |
| Flash Point | 203°F |
| Vapor Presure | 0.000565mmHg at 25°C |
| Specific Gravity | 1.058 |
| Refractive Index | 1.4519 (estimate) |
4-Ethyl-4-methyldihydro-2H-pyran-2,6(3H)-dione - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
4-Ethyl-4-methyldihydro-2H-pyran-2,6(3H)-dione - Introduction
3-Ethyl-3-methylglutaric anhydride is an organic compound with the chemical formula C8H12O3.
Nature:
-Appearance as a white crystalline solid.
-The melting point is about 70-72 degrees Celsius.
-In water decomposition, can be dissolved in organic solvents such as ethanol and dimethylformamide.
Use:
- 3-Ethyl-3-methylglutaric anhydride are mainly used as intermediates in chemical synthesis.
-It can be used to synthesize some organic compounds such as drugs, coatings, plastics and surfactants.
Preparation Method:
- 3-Ethyl-3-methylglutaric anhydride can be obtained by reacting 2-methyl succinic anhydride and ethyl bromide under alkaline conditions.
Safety Information:
-The compound may be irritating and sensitizing to the human body. Avoid inhalation and contact with skin or eyes when in contact.
-Use with appropriate protective measures, such as goggles, gloves and masks.
-During storage and handling, pay attention to prevent contact with oxidants, strong acids and strong alkalis to avoid fire or explosion accidents.
-In case of accidental contact or inhalation, immediately stay away from the scene and seek medical assistance.
Nature:
-Appearance as a white crystalline solid.
-The melting point is about 70-72 degrees Celsius.
-In water decomposition, can be dissolved in organic solvents such as ethanol and dimethylformamide.
Use:
- 3-Ethyl-3-methylglutaric anhydride are mainly used as intermediates in chemical synthesis.
-It can be used to synthesize some organic compounds such as drugs, coatings, plastics and surfactants.
Preparation Method:
- 3-Ethyl-3-methylglutaric anhydride can be obtained by reacting 2-methyl succinic anhydride and ethyl bromide under alkaline conditions.
Safety Information:
-The compound may be irritating and sensitizing to the human body. Avoid inhalation and contact with skin or eyes when in contact.
-Use with appropriate protective measures, such as goggles, gloves and masks.
-During storage and handling, pay attention to prevent contact with oxidants, strong acids and strong alkalis to avoid fire or explosion accidents.
-In case of accidental contact or inhalation, immediately stay away from the scene and seek medical assistance.
Last Update：2024-04-09 15:17:59
