2,2-二羟基-4-甲氧基苯甲酮
2,2-dihydroxy-4-methoxybenzophenone
CAS: 131-53-3
Molecular Formula: CH3OC6H3(OH)COC6H4OH；
2,2-二羟基-4-甲氧基苯甲酮 - Names and Identifiers
| Name | 2,2-dihydroxy-4-methoxybenzophenone |
| Synonyms | BP-8 UV-24 Benzophenone 8 2,2-dihydroxy-4-methoxybenzophenone 2,2-Dihydroxy-4-Methoxy Benzophenone |
| CAS | 131-53-3 |
| EINECS | 205-026-8 |
| InChI | InChI=1/C14H12O4/c1-18-9-6-7-11(13(16)8-9)14(17)10-4-2-3-5-12(10)15/h2-8,15-16H,1H3 |
| InChIKey | MEZZCSHVIGVWFI-UHFFFAOYSA-N |
2,2-二羟基-4-甲氧基苯甲酮 - Physico-chemical Properties
| Molecular Formula | CH3OC6H3(OH)COC6H4OH； |
| Molar Mass | 244.24 |
| Density | 1.296g/cm3 |
| Melting Point | 73-75℃ |
| Boling Point | 375°C at 760 mmHg |
| Flash Point | 146°C |
| Vapor Presure | 3.73E-06mmHg at 25°C |
| Appearance | morphology neat |
| pKa | 7.11±0.35(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Refractive Index | 1.623 |
| MDL | MFCD00002218 |
| Physical and Chemical Properties | Melting Point 73-75°C boiling point 170-175°C |
| Use | Use of the product for the ultraviolet absorber, suitable for polyvinyl chloride, ABS resin, acrylic resin, polyurethane, melamine resin, cellulose resin and many other plastics. The product is benzophenone containing two Ortho hydroxyl groups, the strongest ability to absorb ultraviolet light, the wavelength of 330-370Nm ultraviolet light has a strong absorption effect, the disadvantage is also absorb part of the visible light, so that products slightly yellow. The compatibility of the product and the resin is good, the general dosage of 0.25-3%. In the paint also has good light stability effect. The oral administration of LD50 to rats was 10000mg/kg, which was not irritating to the skin and eyes. |
2,2-二羟基-4-甲氧基苯甲酮 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36/37/38 - 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 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| RTECS | DJ1049500 |
| HS Code | 29145090 |
2,2-二羟基-4-甲氧基苯甲酮 - Upstream Downstream Industry
| Raw Materials | Resorcinol |
2,2-二羟基-4-甲氧基苯甲酮 - Security information
| toxic substance data | 131-53-3(Hazardous Substances Data) |
Last Update：2024-04-10 22:29:15
2,2-二羟基-4-甲氧基苯甲酮 - Nature
| Merck | 14,3303 |
| NIST chemical information | Dioxybenzone(131-53-3) |
| EPA chemical information | Dioxybenzone (131-53-3) |
Last Update：2024-04-09 18:58:34
2,2-二羟基-4-甲氧基苯甲酮 - Uses and synthesis methods
introduction
2, 2-hydroxy-4-methoxybenzophenone is an ultraviolet absorber, suitable for many plastics such as polyvinyl chloride, ABS resin, acrylic resin, polyurethane, melamine resin, cellulose resin, etc.
biological activity
2,2-Dihydroxy-4-methoxybenzophenone (Dioxybenzone, Dioxybenzon, Advastab 47, Cyasorb UV 24, Benzophenone-8) is an organic sunscreen used to block UVB and short wavelength UVA rays.
chemical properties
Light yellow powder. Freezing point 68 ℃, boiling point 170-175 ℃(0.133kPa), relative density 1.382(25 ℃). Solubility at 25 ℃ (g/100g solvent): benzene 46.6, n-hexane 2.3,95% ethanol 21.4, carbon tetrachloride 22.2, methyl ethyl ketone 55.3, plasticizer DOP31.1, insoluble in water.
production method
It is obtained by condensation of resorcinol and salicylyl chloride, and then methylated with dimethyl sulfate.
Last Update：2024-04-09 01:59:50
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View History
2,2-二羟基-4-甲氧基苯甲酮
2-propylpiperidin-4-one HCl
CLODRONIC ACID
5-甲基磺酰基-3氰基吡啶
2,5-DIBROMO-3-NITRO-4-PICOLINE
DIETHYLAMINODIMETHYLSILANE
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2-propylpiperidin-4-one HCl
CLODRONIC ACID
5-甲基磺酰基-3氰基吡啶
2,5-DIBROMO-3-NITRO-4-PICOLINE
DIETHYLAMINODIMETHYLSILANE
2-甲基5-甲氧基苯甲酸
Raw Materials for 2,2-二羟基-4-甲氧基苯甲酮