????-2
|
|
????-2 ??
- ???
- 198-200 °C(lit.)
- ?? ?
- 349.21°C (rough estimate)
- ??
- 1.216
- ???
- 1.4825 (estimate)
- ?? ??
- Sealed in dry,Room Temperature
- ???
- DMSO(?? ???, ??? ??), ???(?? ???)
- ??? ??
- ??
- ??? ??
- ??? ??
- ?? ?? (pKa)
- 6.98±0.35(Predicted)
- ??
- ??? ?? ?? ??? ??
- ???
- ?? ?? ?????.
- BRN
- 1914746
- ???
- ???
- ??? ?? ??
- FRAGRANCE
UV ABSORBER
LIGHT STABILIZER
- InChI
- 1S/C13H10O5/c14-7-1-3-9(11(16)5-7)13(18)10-4-2-8(15)6-12(10)17/h1-6,14-17H
- InChIKey
- WXNRYSGJLQFHBR-UHFFFAOYSA-N
- SMILES
- Oc1ccc(c(O)c1)C(=O)c2ccc(O)cc2O
- LogP
- 3.091 (est)
- CAS ??????
- 131-55-5(CAS DataBase Reference)
??
- ?? ? ?? ??
- ?? ? ???? ?? (GHS)
| ??? ?? | Xn,Xi | ||
|---|---|---|---|
| ?? ???? ?? | 22-36/37/38 | ||
| ????? | 26-36-37/39 | ||
| WGK ?? | 3 | ||
| RTECS ?? | DJ1892000 | ||
| TSCA | TSCA listed | ||
| HS ?? | 29145090 | ||
| ???? ??? | 11 - Combustible Solids | ||
| Hazard Classifications | Acute Tox. 4 Oral Eye Irrit. 2 Skin Sens. 1A |
||
| ?? ?? ??? | 131-55-5(Hazardous Substances Data) | ||
| ?? | LD50 oral in rat: 1220mg/kg | ||
| ???? ?? | KE-03032 |
????-2 C??? ??, ??, ??
??? ??
yellow to brown crystalline powder??
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.?? ??
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.?? ?? ??
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.Synthesis
2 mol of resorcinol dimethyl ether is added dropwise to a mixture of 1 mol of phosgene and 1 mol of aluminum chloride, and the mixture is heated to 65-80° C at a temperature of 30-40° C in the presence of a chlorinated hydrocarbon selected from aliphatic and aromatic chlorides, such as ethylene dichloride. It is then cooled to 40° C, 2 to 3 mol of aluminum chloride are added, the mixture is heated to 60-70° C, dilute hydrochloric acid is treated with aqueous sodium hydroxide solution, and 2,2',4,4'-Tetrahydroxybenzophenone is isolated by filtration.?? ??
[1] Jisuk Bae . (2016). Couples’ urinary concentrations of benzophenone-type ultraviolet filters and the secondary sex ratio. Science of the Total Environment, 543, Pages 28-36. https://doi.org/10.1016/j.scitotenv.2015.11.019????-2 ?? ?? ? ???
???
?? ??
????-2 ?? ??
???( 547)?? ??
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????-2 ?? ??:
2,4-????????? ???? 4-???????? 2,3,4-?????????? ???? 3,3-????? 2-[2-?????-3-???????-5-(1,1,3,3-???????)]-2H-?????? 2-???-3,3-???-2-??????, 2,2-??[[(2-???-1-??-3,3-???-2-????)??]??]-1,3-????? ???? ???, C=12-21 ? C=18-???, 2,2,6,6-?????-4-?????? ???? 2,3,4,4'-???????ENZO?? 1,2-?????????-5- ??? ????
2,2'-Dihydroxy-4,4'-dimethoxybenzophenone
3,4-Dihydroxybenzophenone
Benzophenone imine
4,4'-Dihydroxybenzophenone
UV Absorber 326
Octabenzone
2,2'-Thiobis(4-tert-octylphenolato)-n-butylamine nickel(II)
Poly[N,N'-bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine-co-2,4-dichloro-6-morpholino-1,3,5-triazine]