6-tert-butyl-2-(3-tert-butyl-2-hydroxy-5,6-dimethylphenyl)-3,4-dimethylphenol
5,5′,6,6′-Tetramethyl-3,3′-di-tert-butyl-1,1′-biphenyl-2,2′-diol
CAS: 101203-31-0
Molecular Formula: C24H34O2
6-tert-butyl-2-(3-tert-butyl-2-hydroxy-5,6-dimethylphenyl)-3,4-dimethylphenol - Names and Identifiers
| Name | 5,5′,6,6′-Tetramethyl-3,3′-di-tert-butyl-1,1′-biphenyl-2,2′-diol |
| Synonyms | (S) BIPHEN H2 (R) BIPHEN H2 (S)-(-)-BIPHEN H2 (R)-(+)-BIPHEN H2 5,5′,6,6′-Tetramethyl-3,3′-di-tert-butyl-1,1′-biphenyl-2,2′-diol 3,3'-Di-tert-butyl-5,5',6,6'-tetramethyl-[1,1'-biphenyl]-2,2'-diol 6-tert-butyl-2-(3-tert-butyl-2-hydroxy-5,6-dimethylphenyl)-3,4-dimethylphenol raceMic-5,5',6,6'-TetraMethyl-3,3'-di- t-butyl-1,1'-biphenyl-2,2'-diol rac-BIPHEN H2 |
| CAS | 101203-31-0 |
6-tert-butyl-2-(3-tert-butyl-2-hydroxy-5,6-dimethylphenyl)-3,4-dimethylphenol - Physico-chemical Properties
| Molecular Formula | C24H34O2 |
| Molar Mass | 354.53 |
| Density | 1.012±0.06 g/cm3(Predicted) |
| Melting Point | 170-174°C |
| Boling Point | 420.8±45.0 °C(Predicted) |
| Appearance | crystal |
| Color | white to off-white |
| pKa | 10.95±0.50(Predicted) |
| Storage Condition | 2-8°C |
| MDL | MFCD01862439 |
6-tert-butyl-2-(3-tert-butyl-2-hydroxy-5,6-dimethylphenyl)-3,4-dimethylphenol - Risk and Safety
| 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. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| WGK Germany | 3 |
6-tert-butyl-2-(3-tert-butyl-2-hydroxy-5,6-dimethylphenyl)-3,4-dimethylphenol - Introduction
5,5 ′,6,6 ′-Tetramethyl-3,3 ′-di-tert-butyl-1,1 ′-biphenyl-2,2 ′-diol is an organic compound commonly abbreviated as TMBPH. Its structure contains a biphenyl ring and two alcohol groups. The following is its nature, use, preparation and safety information:
Nature:
-Appearance: TMBPH is generally a white crystalline solid.
-Melting point: Its melting point is in the range of 160-165°C.
-Solubility: TMBPH has good solubility in some organic solvents, such as chloroform, ethyl acetate and dichloromethane, but has poor solubility in water.
Use:
- TMBPH is commonly used as an antioxidant for chemicals and polymers. It can stabilize the performance of polymer materials under heat and light and extend the service life of polymers.
-Due to its antioxidant properties, TMBPH can also be used as a preservative in cosmetics and personal care products.
Preparation Method:
- TMBPH can be obtained by etherification of phenol. Specifically, phenol is reacted with di-tert-butyl hydroperoxide (DTBP) at an appropriate temperature to introduce methyl and tert-butyl groups.
Safety Information:
- TMBPH is generally a stable compound under normal conditions, but the following safety precautions still need to be paid attention:
-It is recommended to wear appropriate personal protective equipment, such as gloves and goggles, during operation.
-Avoid contact with strong oxidants and strong acids to prevent dangerous reactions.
-Handling, storage and disposal should be in accordance with the laboratory's safe practices.
Nature:
-Appearance: TMBPH is generally a white crystalline solid.
-Melting point: Its melting point is in the range of 160-165°C.
-Solubility: TMBPH has good solubility in some organic solvents, such as chloroform, ethyl acetate and dichloromethane, but has poor solubility in water.
Use:
- TMBPH is commonly used as an antioxidant for chemicals and polymers. It can stabilize the performance of polymer materials under heat and light and extend the service life of polymers.
-Due to its antioxidant properties, TMBPH can also be used as a preservative in cosmetics and personal care products.
Preparation Method:
- TMBPH can be obtained by etherification of phenol. Specifically, phenol is reacted with di-tert-butyl hydroperoxide (DTBP) at an appropriate temperature to introduce methyl and tert-butyl groups.
Safety Information:
- TMBPH is generally a stable compound under normal conditions, but the following safety precautions still need to be paid attention:
-It is recommended to wear appropriate personal protective equipment, such as gloves and goggles, during operation.
-Avoid contact with strong oxidants and strong acids to prevent dangerous reactions.
-Handling, storage and disposal should be in accordance with the laboratory's safe practices.
Last Update：2024-04-09 15:18:01
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