2,2',4,4'-Tetrahydroxybenzophenone
- CAS NO.：131-55-5
- Empirical Formula: C13H10O5
- Molecular Weight: 246.22
- MDL number: MFCD00002278
- EINECS: 205-028-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-18 14:08:57
What is 2,2',4,4'-Tetrahydroxybenzophenone?
Chemical properties
yellow to brown crystalline powder
The Uses of 2,2',4,4'-Tetrahydroxybenzophenone
2,2',4,4'-Tetrahydroxybenzophenone is a uV-absorber that helps protect against product degradation because of uV-light exposure. It can also mask odor associated with a formulation’s composition.
The Uses of 2,2',4,4'-Tetrahydroxybenzophenone
2,2′,4,4′-Tetrahydroxybenzophenone are benzophenone-type UV filters with known or suspected endocrine disrupting properties detected in surface waters, sunscreens, personal care products, clothing and food packaging. It is used to protect the skin and materials from the adverse effects of UV-radiation.
The Uses of 2,2',4,4'-Tetrahydroxybenzophenone
2,2',4,4'-Tetrahydroxybenzophenone is used as the raw material of ultraviolet absorbers in cosmetics, plastics, resins and rubber. It is used as pharmaceutical intermediates and light-sensitive materials. It is also used as pharmaceutical adjuvant.
Preparation
Obtained (small amount) by melting a fluorescin chloride/sodium hydroxide mixture in the presence of a very few water at 230–240° for 2–3 h.
Contact allergens
BZP-2 is widely used in perfumes to prevent their degradation due to light. It can cause allergic contact dermatitis.
Safety Profile
Moderately toxic by ingestion. Aneye irritant. Mutation data reported. When heated todecomposition it emits toxic fumes of NOx.
Properties of 2,2',4,4'-Tetrahydroxybenzophenone
| Melting point: | 198-200 °C(lit.) |
| Boiling point: | 349.21°C (rough estimate) |
| Density | 1.216 |
| refractive index | 1.4825 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | DMSO (Slightly, Sonicated), Methanol (Slightly) |
| form | Solid |
| pka | 6.98±0.35(Predicted) |
| color | Needles from H2O |
| Water Solubility | Slightly soluble in water. |
| BRN | 1914746 |
| Stability: | Hygroscopic |
| CAS DataBase Reference | 131-55-5(CAS DataBase Reference) |
| NIST Chemistry Reference | 2,2',4,4'-Tetrahydroxybenzophenone(131-55-5) |
| EPA Substance Registry System | 2,2',4,4'-Tetrahydroxybenzophenone (131-55-5) |
Safety information for 2,2',4,4'-Tetrahydroxybenzophenone
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H317:Sensitisation, Skin H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 2,2',4,4'-Tetrahydroxybenzophenone
| InChIKey | WXNRYSGJLQFHBR-UHFFFAOYSA-N |
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