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| CAS No.: | 131-56-6 |
|---|---|
| Name: | 2,4-Dihydroxybenzophenone |
| Article Data: | 90 |
| Molecular Structure: | |
|
|
|
| Formula: | C13H10O3 |
| Molecular Weight: | 214.221 |
| Synonyms: | 2,4-dihydroxybenzophanene (UV adsorbent);UV absorbers BP-1;UV 0;Sunsafe-BP1 (2,4-Dihydroxy Benzophenone);Methanone, (2,4-dihydroxyphenyl)phenyl-;UV－0;Methanone,(2,4-dihydroxyphenyl)phenyl-;Inhibitor DHBP;UF 1;Uvinol 400;Seesorb 100;Uvistat 12;(2,4-dihydroxyphenyl)-phenyl-methanone;Benzophenone, 2,4-dihydroxy-;Aduvex 12;Uvinul 3000;Uvinul M 400;Syntase 100;2,4-Hydroxybenzophenone;Quansorb-1;Benzophenone-1 (UV-0);2,4-DihydroxyBenzophenone(Benzophenone-1); |
| EINECS: | 205-029-4 |
| Density: | 1.302 g/cm3 |
| Melting Point: | 144.5-147 °C(lit.) |
| Boiling Point: | 409 °C at 760 mmHg |
| Flash Point: | 215.3 °C |
| Solubility: | insoluble in water |
| Appearance: | yellow crystalline powder |
| Hazard Symbols: |
 Xi
|
| Risk Codes: | 26-36/37/38 |
| Safety: | 26-37/39 |
| PSA: | 57.53000 |
| LogP: | 2.32880 |
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| Conditions | Yield |
|---|---|
| With ethanol; water at 60 - 80℃; for 9h; Temperature; Green chemistry; | 99% |
| With water In ethanol at 40 - 50℃; for 4h; Temperature; Large scale; | 97.6% |
| With ethanol und Eintragen des Reaktionsgemisches in heisses Wasser; |
| Conditions | Yield |
|---|---|
| With phosphotungstic acid In 5,5-dimethyl-1,3-cyclohexadiene at 130℃; for 5h; Catalytic behavior; Temperature; Friedel-Crafts Acylation; | 99% |
| With aluminum oxide; methanesulfonic acid at 140℃; for 0.5h; | 85% |
| With bismuth(lll) trifluoromethanesulfonate In neat (no solvent) at 180℃; for 0.5h; Friedel-Crafts Acylation; Microwave irradiation; chemoselective reaction; | 85% |
| Conditions | Yield |
|---|---|
| With aluminum (III) chloride In chlorobenzene at 90℃; | 97.1% |
| With zinc at 50 - 52℃; for 0.0152778h; Friedel-Crafts acylation; microwave irradiation; | 70% |
| Conditions | Yield |
|---|---|
| With 5% CeO2 doped HZSM-5 zeolite In ethanol at 73℃; for 4h; Concentration; Reagent/catalyst; Green chemistry; | 96.58% |
| With sulfuric acid at 130℃; |
| Conditions | Yield |
|---|---|
| Stage #1: benzene With polymer-supported phenyliodine(III) diacetate; sulfuric acid In acetic acid at 20℃; for 60h; Substitution; Stage #2: 2,4-Dihydroxybenzaldehyde With sodium carbonate; lithium chloride; palladium dichloride In N,N-dimethyl-formamide at 60 - 70℃; for 4.5h; Substitution; | 67% |
| Conditions | Yield |
|---|---|
| With sodium carbonate; lithium chloride; palladium dichloride In N,N-dimethyl-formamide at 60℃; for 4h; Arylation; | 52% |
- 75697-71-1
2,4-diacetoxybenzophenone
A
- 131-56-6
2,4-dihydroxybenzophenone
| Conditions | Yield |
|---|---|
| With Candida cylindracea lipase In di-isopropyl ether; butan-1-ol at 28 - 30℃; for 40h; | A 50% B 35% |
| Conditions | Yield |
|---|---|
| With boron trifluoride diethyl etherate In benzene for 3h; crossover Friess rearrangement; Heating; | 40% |
| Conditions | Yield |
|---|---|
| With zinc(II) chloride at 120 - 130℃; for 7h; | 35% |
| Conditions | Yield |
|---|---|
| With zinc(II) chloride; trichlorophosphate at 65℃; for 3h; | 30% |
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Specification
1.Introduction of 2,4-Dihydroxybenzophenone
The 2,4-Dihydroxybenzophenone, with its CAS NO 131-56-6, is a kind of White or Light yellow crystalline powder. It has synonyms of 2,4-dihydroxybenzophanene (UV adsorbent);UV absorbers BP-1;UV 0;Sunsafe-BP1 (2,4-Dihydroxy Benzophenone);Methanone, (2,4-dihydroxyphenyl)phenyl-;UV－0 and Methanone,(2,4-dihydroxyphenyl)phenyl-. 2,4-Dihydroxybenzophenone should be stored in a closed system and be kept in a dark place without any light exposure and mainly used in plastics as light stabilizer, can effectively protect the organic glass and clothing, prevent deterioration due to sunlight, but also for intermediates in synthesis of other UV-absorbent .
2.Properties of 2,4-Dihydroxybenzophenone
(1) EINECS: 205-029-4 (2) Mol File: 131-56-6.mol (3)Index of Refraction: 1.647
(4) Molar Refractivity: 59.8 cm3 (5) Molar Volume: 164.4 cm3 (6) Surface Tension: 59.6 dyne/cm
(7) Density: 1.302 g/cm3 (8) Flash Point: 215.3 °C (9) Enthalpy of Vaporization: 68.68 kJ/mol
(10) Boiling Point: 409 °C at 760 mmHg (11) Vapour Pressure: 2.84E-07 mmHg at 25 °C
3.Structure descriptors of 2,4-Dihydroxybenzophenone
SMILES:O=C(c1ccc(O)cc1O)c2ccccc2
Std. InChI:InChI=1S/C13H10O3/c14-10-6-7-11(12(15)8-10)13(16)9-4-2-1-3-5-9/h1-8,14-15H
Std. InChIKey:ZXDDPOHVAMWLBH-UHFFFAOYSA-N
4.Safety information of 2,4-Dihydroxybenzophenone
Hazard Codes: 
Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements 26-37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39:Wear suitable gloves and eye/face protection.
WGK Germany: 2
RTECS: DJ0700000
Hazard Note: Irritant
5.Toxity data of 2,4-Dihydroxybenzophenone
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 100mg/kg (100mg/kg) | National Technical Information Service. Vol. AD277-689, | |
| mouse | LD50 | intravenous | 85mg/kg (85mg/kg) | British Journal of Pharmacology and Chemotherapy. Vol. 22, Pg. 221, 1964. | |
| rat | LD50 | oral | 8600mg/kg (8600mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: FOOD INTAKE (ANIMAL) GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA" | Roczniki Panstwowego Zakladu Higieny. Vol. 19, Pg. 179, 1968. |