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Cas Database

131-56-6

131-56-6

Identification

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);

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Safety information and MSDS view more

  • Pictogram(s):IrritantXi

  • Hazard Codes:Xi,T

  • Signal Word:Warning

  • Hazard Statement:H315 Causes skin irritationH319 Causes serious eye irritation H335 May cause respiratory irritation

  • First-aid measures: General adviceConsult a physician. Show this safety data sheet to the doctor in attendance.If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact Wash off with soap and plenty of water. Consult a physician. In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. If swallowed Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

  • Fire-fighting measures: Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Wear self-contained breathing apparatus for firefighting if necessary.

  • Accidental release measures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8. Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

  • Handling and storage: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2. Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

  • Exposure controls/personal protection:Occupational Exposure limit valuesBiological limit values Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. Eye/face protection Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Respiratory protection Wear dust mask when handling large quantities. Thermal hazards

Supplier and reference price

  • Manufacture/Brand
  • Product Description
  • Packaging
  • Price
  • Delivery
  • Purchase
  • Manufacture/Brand:Usbiological
  • Product Description:2,4-Dihydroxybenzophenone
  • Packaging:100mg
  • Price:$ 418
  • Delivery:In stock
  • Buy Now
  • Manufacture/Brand:TRC
  • Product Description:2,4-Dihydroxybenzophenone
  • Packaging:10 g
  • Price:$ 95
  • Delivery:In stock
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  • Manufacture/Brand:TCI Chemical
  • Product Description:2,4-Dihydroxybenzophenone >98.0%(GC)(T)
  • Packaging:25g
  • Price:$ 14
  • Delivery:In stock
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  • Manufacture/Brand:TCI Chemical
  • Product Description:2,4-Dihydroxybenzophenone >98.0%(GC)(T)
  • Packaging:500g
  • Price:$ 84
  • Delivery:In stock
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  • Manufacture/Brand:SynQuest Laboratories
  • Product Description:2,4-Dihydroxybenzophenone 99%
  • Packaging:500 g
  • Price:$ 157
  • Delivery:In stock
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  • Manufacture/Brand:SynQuest Laboratories
  • Product Description:2,4-Dihydroxybenzophenone 99%
  • Packaging:100 g
  • Price:$ 92
  • Delivery:In stock
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  • Manufacture/Brand:Sigma-Aldrich
  • Product Description:2,4-Dihydroxybenzophenone 99%
  • Packaging:100g
  • Price:$ 38.6
  • Delivery:In stock
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  • Manufacture/Brand:Sigma-Aldrich
  • Product Description:2,4-Dihydroxybenzophenone for synthesis. CAS 131-56-6, chemical formula 2,4-(OH) -C H COC H ., for synthesis
  • Packaging:8186520250
  • Price:$ 97.2
  • Delivery:In stock
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  • Manufacture/Brand:Sigma-Aldrich
  • Product Description:2,4-Dihydroxybenzophenone for synthesis
  • Packaging:250 g
  • Price:$ 93.42
  • Delivery:In stock
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  • Manufacture/Brand:Medical Isotopes, Inc.
  • Product Description:2,4-Dihydroxybenzophenone
  • Packaging:1 g
  • Price:$ 650
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Relevant articles and documentsAll total 43 Articles be found

Efficient microwave-assisted direct C-benzoylation of phenols and naphthols with benzoic acid catalyzed by bismuth triflate under solvent-free or ionic liquid conditions

Tran, Phuong Hoang,Phung, Huy Quang,Duong, Minh Nhat,Pham-Tran, Nguyen-Nguyen

, p. 1558 - 1563 (2017)

An efficient and simple route for the synthesis of ortho-hydroxyaryl ketones has been developed. The microwave-assisted direct C-benzoylation of phenols and naphthols in the presence of metal triflates afforded the corresponding ortho-hydroxyaryl ketones in moderate to excellent yields. Bismuth triflate showed the best catalytic performance compared to other metal triflates. The protocol has advantages including short reaction times, high chemoselectivity towards C-acylation, and simple work-up. Additionally, bismuth triflate can be easily recovered and reused several times without significant loss of catalytic performance.

Novel process for preparing sun-screening agent 2-hydroxy-4-n-octyloxy benzophenone

-

Paragraph 0092-0096, (2021/02/06)

The invention discloses a novel process for preparing a sun-screening agent 2-hydroxy-4-n-octyloxy benzophenone. According to the process, 2,4-dihydroxy benzophenone is prepared, and 2,4-dihydroxy benzophenone and 1-chloro-n-octane are used as raw materials, wherein the prepared 2,4-dihydroxy benzophenone is simple in method, has no need of posttreatment and can be directly used as a reaction rawmaterial for subsequent reaction, and the energy consumption is reduced from the source; 1-chloro-n-octane is taken as an alkylation reagent, inorganic base is taken as a catalyst, solvents are addedfor reaction, and the yield of the obtained product 2-hydroxy-4-octyloxybenzophenone is high and can reach 90% or above. According to the method, the raw material cost is reduced, the problem of industrial wastewater at present is solved, in addition, the whole process is mild in condition, few in three wastes, high in yield and good in product quality, the use requirements of the cosmetic industry are met, the technological process is simple to operate and easy to realize, the intermediate reaction process is simple and easy to control, and industrial production can be realized.

Selective Oxidation of Alkylarenes to the Aromatic Ketones or Benzaldehydes with Water

Du, Jihong,Duan, Baogen,Liu, Kun,Liu, Renhua,Yu, Feifei,Yuan, Yongkun,Zhang, Chenyang,Zhang, Jin

supporting information, (2022/02/09)

Here a palladium-catalyzed oxidation method for converting alkylarenes into the aromatic ketones or benzaldehydes with water as the only oxygen donor is reported. This C-H bond oxidation functionalization does not require other oxidants and hydrogen accep

Novel method for preparing intermediate of sun-screening agent, namely 2-hydroxy-4-methoxybenzophenone

-

Paragraph 0064-0078, (2020/05/11)

The invention provides a synthesis method for 2,4-dihydroxy benzophenone. The method synthesizes the 2,4-dihydroxy benzophenone by using benzoic acid as an acylating agent in the presence of a catalyst. According to the invention, the benzoic acid with low cost is used as the acylation agent, so a large amount of acidic phenolic wastewater is prevented from being generated on the premise of keeping a high conversion rate, and the environmental burden and the post-treatment cost are greatly reduced. A solid acid catalyst adopted in the method is high in reaction selectivity, can absorb by-product water, is recyclable, has mild recycling treatment condition, and is practicable to operate; an obtained product is high in purity; the conversion rate of raw materials is high; a mother liquor hasfew impurities and can be directly recycled; and industrial production can be achieved easily.

Clean production method of 2,4-dihydroxy benzophenone

-

Paragraph 0035-0052, (2021/01/15)

The invention discloses a clean production method of 2,4-dihydroxy benzophenone, wherein the method comprises the steps: by using trichlorotoluene and resorcinol as initial raw materials, reacting ina water/ethanol system to generate 2,4-dihydroxy benzophenone, and concentrating, alkalizing, decolorizing and acidifying a mother solution to implement zero discharge of wastewater. According to themethod, cheap and easily available trichlorotoluene and resorcinol are used as starting materials, the production method is simple in process, green and environment-friendly, the product yield and purity are relatively high, and the method has a wide industrial application prospect.

A SUNSCREEN FORMULATION

-

Paragraph 0045-0046; 0049-0050, (2020/06/10)

Disclosed herein are the synthesis of new classes of sunscreen agents, the usage of such sunscreen agents in sunscreen formulations aiming at reduction of sunscreen agents' skin penetration, and a formulation technology using existing sunscreen agents aiming at reduction of sunscreen agents's kin penetration, therefore improving the bio-safety of the sunscreen products.

Process route upstream and downstream products

Process route

benzoic acid anhydride
93-97-0

benzoic acid anhydride

recorcinol
108-46-3

recorcinol

2.4-dihydroxybenzophenone
131-56-6

2.4-dihydroxybenzophenone

Conditions
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 ℃;
benzoic acid
65-85-0,8013-63-6

benzoic acid

recorcinol
108-46-3

recorcinol

2.4-dihydroxybenzophenone
131-56-6

2.4-dihydroxybenzophenone

Conditions
Conditions Yield
With phosphotungstic acid; In 5,5-dimethyl-1,3-cyclohexadiene; at 130 ℃; for 5h; Temperature; Catalytic behavior;
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; chemoselective reaction; Microwave irradiation;
85%
With methanesulfonic acid; pyrographite; at 120 ℃; for 2.5h;
80%
benzoic acid; With trifluoromethylsulfonic anhydride; In nitromethane; at 20 - 60 ℃;
recorcinol; In nitromethane; at 60 ℃; for 0.0833333h; regiospecific reaction;
74%
With phosphorus pentoxide; silica gel; at 100 ℃; for 24h;
66%
With boron trifluoride; at 160 ℃;
With zinc(II) chloride;
With zinc(II) chloride; at 160 ℃;
boron trifluoride diethyl etherate; at 95 ℃; for 2h;
With sulfolane; aluminum (III) chloride; at 65 - 70 ℃; for 8h;
With zinc(II) chloride; trichlorophosphate; at 65 ℃; for 6h; Reagent/catalyst; Temperature;
8.7 g
With sodium montmorillonite; In 5,5-dimethyl-1,3-cyclohexadiene; at 150 ℃; for 8h;
46.13 g
2,4-Dihydroxybenzaldehyde
95-01-2

2,4-Dihydroxybenzaldehyde

2.4-dihydroxybenzophenone
131-56-6

2.4-dihydroxybenzophenone

Conditions
Conditions Yield
benzene; With polymer-supported phenyliodine(III) diacetate; sulfuric acid; In acetic acid; at 20 ℃; for 60h;
2,4-Dihydroxybenzaldehyde; With sodium carbonate; lithium chloride; palladium dichloride; In N,N-dimethyl-formamide; at 60 - 70 ℃; for 4.5h;
67%
benzoic acid
65-85-0,8013-63-6

benzoic acid

2.4-dihydroxybenzophenone
131-56-6

2.4-dihydroxybenzophenone

Conditions
Conditions Yield
With zinc(II) chloride; trichlorophosphate; at 65 ℃; for 3h;
30%
2,4-dihydroxy-benzophenone-imine
408531-49-7

2,4-dihydroxy-benzophenone-imine

2.4-dihydroxybenzophenone
131-56-6

2.4-dihydroxybenzophenone

Conditions
Conditions Yield
With water; at 80 ℃;
benzoic acid
65-85-0,8013-63-6

benzoic acid

recorcinol
108-46-3

recorcinol

2.4-dihydroxybenzophenone
131-56-6

2.4-dihydroxybenzophenone

benzoate d'hydroxy-3 phenyle
136-36-7

benzoate d'hydroxy-3 phenyle

Conditions
Conditions Yield
With Hierarchical-Beta zeolite; In 1,3,5-trimethyl-benzene; at 159.84 ℃; for 30h; Reagent/catalyst; Catalytic behavior; Green chemistry;
2,4-diacetoxybenzophenone
75697-71-1

2,4-diacetoxybenzophenone

2.4-dihydroxybenzophenone
131-56-6

2.4-dihydroxybenzophenone

2-acetoxy-4-hydroxybenzophenone

2-acetoxy-4-hydroxybenzophenone

Conditions
Conditions Yield
With Candida cylindracea lipase; In di-isopropyl ether; butan-1-ol; at 28 - 30 ℃; for 40h;
35%
50%
diphenyliodonium bromide
1483-73-4

diphenyliodonium bromide

2,4-Dihydroxybenzaldehyde
95-01-2

2,4-Dihydroxybenzaldehyde

2.4-dihydroxybenzophenone
131-56-6

2.4-dihydroxybenzophenone

Conditions
Conditions Yield
With sodium carbonate; lithium chloride; palladium dichloride; In N,N-dimethyl-formamide; at 60 ℃; for 4h;
52%
benzoic acid phenyl ester
93-99-2

benzoic acid phenyl ester

recorcinol
108-46-3

recorcinol

2.4-dihydroxybenzophenone
131-56-6

2.4-dihydroxybenzophenone

Conditions
Conditions Yield
With boron trifluoride diethyl etherate; In benzene; for 3h; Heating;
40%
recorcinol
108-46-3

recorcinol

3,6-dibenzoyloxy-1,2-pyridazine
848417-68-5

3,6-dibenzoyloxy-1,2-pyridazine

2.4-dihydroxybenzophenone
131-56-6

2.4-dihydroxybenzophenone

Conditions
Conditions Yield
With zinc(II) chloride; at 120 - 130 ℃; for 7h;
35%

Global suppliers and manufacturers

Global( 233) Suppliers
  • Company Name
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  • Simagchem Corporation
  • Business Type:Manufacturers
  • Contact Tel:+86-592-2680277
  • Emails:sale@simagchem.com
  • Main Products:110
  • Country:China (Mainland)
  • Amadis Chemical Co., Ltd.
  • Business Type:Lab/Research institutions
  • Contact Tel:86-571-89925085
  • Emails:sales@amadischem.com
  • Main Products:29
  • Country:China (Mainland)
  • Shaanxi BLOOM TECH Co.,Ltd
  • Business Type:Lab/Research institutions
  • Contact Tel:+86-29-86470566
  • Emails:sales@bloomtechz.com
  • Main Products:79
  • Country:China (Mainland)
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