134781-54-7
3,5-Dimethyl-3',5'-ditert-butyldiphenoquinone
CAS: 126657-30-5;134781-54-7
Molecular Formula: C22H28O2
134781-54-7 - Names and Identifiers
| Name | 3,5-Dimethyl-3',5'-ditert-butyldiphenoquinone |
| Synonyms | 3,5-Dimethyl-3',5'-ditert-butyldiphenoquinone 3,5-DIMETHYL-3',5'-DI-T-BUTYL-4,4'-DIPHENOQUINONE 3,5-Dimethyl-3',5'-ditert-butyl-4,4'-diphenoquinone 3,5-DIMETHYL-3'',5''-DI-T-BUTYL-4,4''-DIPHENOQUINONE 3,5-di-tert-butyl-3',5'-dimethyl-1,1'-bi(cyclohexa-2,5-dien-1-ylidene)-4,4'-dione 3,5-di-tert-butyl-3,,5,-dimethyl-[1,1,-bi(cyclohexylidene)]-2,2,,5,5,-tetraene-4,4,-dione 4-(3,5-ditert-butyl-4-oxo-1-cyclohexa-2,5-dienylidene)-2,6-dimethyl-1-cyclohexa-2,5-dienone 2,6-bis(1,1-dimethylethyl)-4-(3,5-dimethyl-4-oxo-2,5-cyclohexadien-1-ylidene)-2,5-Cyclohexadien-1-one 2,6-BIS(1,1-DIMETHYLETHYL)-4-(3,5-DIMETHYL-4-OXO-2,5-CYCLOHEXADIEN-1-YLIDENE)-2,5-CYCLOHEXADIEN-1-ONE 2,5-Cyclohexadien-1-one, 2,6-bis(1,1-dimethylethyl)-4-(3,5-dimethyl-4-oxo-2,5-cyclohexadien-1-ylidene)- |
| CAS | 126657-30-5 134781-54-7 |
| InChI | InChI=1/C22H28O2/c1-13-9-15(10-14(2)19(13)23)16-11-17(21(3,4)5)20(24)18(12-16)22(6,7)8/h9-12H,1-8H3 |
134781-54-7 - Physico-chemical Properties
| Molecular Formula | C22H28O2 |
| Molar Mass | 324.46 |
| Density | 1.058 |
| Melting Point | 180-181 ºC |
| Boling Point | 433.2°C at 760 mmHg |
| Flash Point | 161.7°C |
| Vapor Presure | 1.05E-07mmHg at 25°C |
| Refractive Index | 1.548 |
134781-54-7 - Introduction
3,5-Dimethyl -3 ',5'-di-tert-butyl-4, 4 '-diphenoquinone is an organic compound often abbreviated as DTBHQ. The following is a description of the nature, use, formulation and safety information of DTBHQ:
Nature:
1. Appearance: white to yellowish crystalline powder.
2. melting point: about 218-220 degrees Celsius.
3. Solubility: Soluble in organic solvents such as ether, acetone, methanol, and insoluble in water.
4. Stability: relatively stable at room temperature, but sensitive to light and air, easy to oxidize.
Use:
1. Antioxidant: DTBHQ is widely used in food, rubber and plastics industries as an antioxidant to prevent oxidative deterioration of food and materials.
2. polymer stabilizer: can be used for polymer stability, prolong its service life.
3. coatings and inks: as a peroxide stabilizer, it can delay the aging and discoloration of coatings and inks.
Method:
The preparation of DTBHQ is usually accomplished using a polycondensation reaction of benzoquinone and dimethylacetone. The specific method includes reacting benzoquinone with dimethylacetone in a suitable solvent, and then subjecting to a crystallization purification step to obtain the product.
Safety Information:
1. DTBHQ is relatively stable under normal use conditions, but it still needs to be kept dry and avoid direct sunlight.
2. when using the need to pay attention to protective gloves and goggles and other personal protective equipment.
3. Avoid contact with skin and eyes, and pay attention to avoid inhalation and intake.
4. in case of skin contact or inhalation, rinse immediately with plenty of water and seek medical help.
It is important to emphasize that the information provided here is for reference only and is not a substitute for detailed understanding of safety information and the taking of precautions prior to actual use. When using and operating DTBHQ, please observe the relevant chemical safety practices.
Nature:
1. Appearance: white to yellowish crystalline powder.
2. melting point: about 218-220 degrees Celsius.
3. Solubility: Soluble in organic solvents such as ether, acetone, methanol, and insoluble in water.
4. Stability: relatively stable at room temperature, but sensitive to light and air, easy to oxidize.
Use:
1. Antioxidant: DTBHQ is widely used in food, rubber and plastics industries as an antioxidant to prevent oxidative deterioration of food and materials.
2. polymer stabilizer: can be used for polymer stability, prolong its service life.
3. coatings and inks: as a peroxide stabilizer, it can delay the aging and discoloration of coatings and inks.
Method:
The preparation of DTBHQ is usually accomplished using a polycondensation reaction of benzoquinone and dimethylacetone. The specific method includes reacting benzoquinone with dimethylacetone in a suitable solvent, and then subjecting to a crystallization purification step to obtain the product.
Safety Information:
1. DTBHQ is relatively stable under normal use conditions, but it still needs to be kept dry and avoid direct sunlight.
2. when using the need to pay attention to protective gloves and goggles and other personal protective equipment.
3. Avoid contact with skin and eyes, and pay attention to avoid inhalation and intake.
4. in case of skin contact or inhalation, rinse immediately with plenty of water and seek medical help.
It is important to emphasize that the information provided here is for reference only and is not a substitute for detailed understanding of safety information and the taking of precautions prior to actual use. When using and operating DTBHQ, please observe the relevant chemical safety practices.
Last Update：2024-04-09 19:05:46
