4-Phenoxyphenol supplier | CasNO.831-82-3

Name
4-Phenoxyphenol
EINECS 212-611-1
CAS No. 831-82-3
Article Data67
CAS DataBase
Density 1.175 g/cm³
Solubility insoluble in water, solubel in benzene, diethyl ether
Melting Point 80-84 °C(lit.)
Formula C₁₂H₁₀O₂
Boiling Point 313.761 °C at 760 mmHg
Molecular Weight 186.21
Flash Point 141.446 °C
Transport Information
Appearance beige crystalline powder
Safety 26-36-37/39
Risk Codes 36/37/38
Molecular Structure
Hazard Symbols Xi
Synonyms Phenol,p-phenoxy- (6CI,7CI,8CI);4-Hydroxydiphenyl ether;Hydroquinone monophenyl ether;NSC25027;p-Hydroxydiphenyl ether;p-Phenoxyphenol;
PSA 29.46000
LogP 3.18450

Synthetic route

: 51067-38-0
4-phenoxyphenylboronic acid

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With [Rh2(bpy)2(μ-OAc)2(OAc)2]; oxygen; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide under 760.051 Torr; for 18h; Irradiation;	97%
With dihydrogen peroxide In ethanol at 20℃; for 0.166667h;	89%
With oxygen; triethylamine In 2-methyltetrahydrofuran at 20℃; under 760.051 Torr; for 24h; Green chemistry;	73%
With tert.-butylhydroperoxide; oxygen; trichloroacetonitrile In decane; acetonitrile at 20℃; for 12h; Irradiation;	57%

: 591-50-4
iodobenzene

: 123-31-9
hydroquinone

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With potassium carbonate In N,N-dimethyl-formamide at 100℃; for 24h; Catalytic behavior;	92%
With sodium hydroxide In neat (no solvent) at 90℃; for 9h; Green chemistry;	60%

: 106-51-4
p-benzoquinone

: 98-80-6
phenylboronic acid

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With methanol; copper(II) ferrite at 20℃; for 24h;	86%

: 1655-69-2
1-methoxy-4-phenoxy-benzene

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With 1,3-dimethyl-2-imidazolidinone; lithium diisopropyl amide In tetrahydrofuran; n-heptane; ethylbenzene at 185℃; for 12h; further reagent: NaN(SiMe3)2;	84%
With hydrogen iodide
With aluminium trichloride at 130 - 150℃;

: 108-86-1
bromobenzene

: 123-31-9
hydroquinone

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With zinc In N,N-dimethyl-formamide for 0.0416667h; Williamson ether synthesis; microwave irradiation;	81%

: 108-90-7
chlorobenzene

: 123-31-9
hydroquinone

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With zinc In N,N-dimethyl-formamide for 0.0583333h; Williamson ether synthesis; microwave irradiation;	79%

: 108-95-2
phenol

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With sodium hypochlorite; copper(l) chloride In water at 100℃; for 16h;	73.3%
Multi-step reaction with 2 steps 1: potassium methoxide, copper(I) chloride, copper bronze / 6 h / 230 °C 2: boron tribromide / CH2Cl2 / 4 h / Heating View Scheme
Multi-step reaction with 3 steps 1: 71 percent / K2CO3 / N,N-dimethyl-acetamide / Heating 2: 3-chloroperoxybenzoic acid / CHCl3 / Ambient temperature 3: conc. HCl / methanol / 1 h / Ambient temperature View Scheme

: 101-55-3
4-Bromodiphenyl ether

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With dicyclohexyl-(2′,4′,6′-triisopropyl-3,6-dimethoxy-[1,1′-biphenyl]-2-yl)phosphine; boric acid; palladium diacetate; caesium carbonate In 1-methyl-pyrrolidin-2-one at 80℃; for 24h; Schlenk technique; Inert atmosphere;	67%
With potassium hydroxide; copper at 250℃;
With alkaline solution; copper at 200℃;

: 7005-72-3
4-chlorodiphenyl ether

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With trans-di(μ-acetato)bis[o-(di-o-tolyl-phosphino)benzyl]dipalladium(II); C29H45Pt; potassium carbonate In water; N,N-dimethyl-formamide at 115℃; for 0.5h; Inert atmosphere; Microwave irradiation;	67%

: 3379-38-2
1,3-diphenoxybenzene

A: 831-82-3
4-Phenoxyphenol

B: 108-93-0
cyclohexanol

C: 71-43-2
benzene

Conditions

Conditions	Yield
With hydrogen In Hexadecane at 260℃; under 7600.51 Torr; for 5h; Autoclave;	A 8.3% B 9.5% C 53.8%

...Expand

: 462-06-6
fluorobenzene

: 123-31-9
hydroquinone

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With 18-crown-6 ether; potassium tert-butylate In dimethyl sulfoxide at 100℃; for 24h;	53%

: 3379-38-2
1,3-diphenoxybenzene

A: 831-82-3
4-Phenoxyphenol

B: 71-43-2
benzene

Conditions

Conditions	Yield
With hydrogen In Hexadecane at 260℃; under 7600.51 Torr; for 5h; Autoclave;	A 5.5% B 13.2%

: 106-41-2
4-bromo-phenol

: 100-67-4
potassium phenolate

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With hydrogen; copper at 130℃;

: phenylmagnesium bromide

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With diethyl ether; dihydrogen peroxide

: 139-59-3
4-phenoxyanilin

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With hydrogenchloride; sodium nitrate
With hydrogenchloride; tetrafluoroboric acid; acetic acid; sodium nitrite In water at 80℃; for 4h; Inert atmosphere; Cooling with ice;

: 106-41-2
4-bromo-phenol

: 108-95-2
phenol

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With potassium hydroxide; copper at 180 - 200℃;

: 19082-52-1
4-phenoxyphenyl acetate

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With hydrogenchloride In methanol Heating; Yield given;
With hydrogenchloride; methanol; water at 40℃; for 4h;

: 406700-77-4
Formic acid 4-phenoxy-phenyl ester

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With hydrogenchloride In methanol for 1h; Ambient temperature; Yield given;

: 2122-46-5, 55748-05-5
phenoxy radical

A: 2417-10-9
2-Phenoxyphenol

B: 1806-29-7
2,2'-dihydroxybiphenyl

C: 92-88-6
4,4'-Dihydroxybiphenyl

D: 611-62-1
2,4'-dihydroxybiphenyl

E: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
Product distribution; Irradiation; effect of abs. dose of irrad.;

...Expand

: 106-51-4
p-benzoquinone

: 71-43-2
benzene

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With trifluoroacetic acid at 20 - 25℃; for 6h; Irradiation;	0.95 g

: 41071-17-4
phenoxy cation

: 108-95-2
phenol

A: 2417-10-9
2-Phenoxyphenol

B: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
In hexane Rate constant; or in MeOH;

...Expand

: 108-95-2
phenol

A: 2417-10-9
2-Phenoxyphenol

B: 1806-29-7
2,2'-dihydroxybiphenyl

C: 92-88-6
4,4'-Dihydroxybiphenyl

D: 611-62-1
2,4'-dihydroxybiphenyl

E: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With di-tert-butyl diperoxyoxalate; di-tert-butyl peroxide In chlorobenzene Product distribution; Mechanism; a) 140 deg C or b) 25 deg C.; correlation of product distribution and stereoelectronic factors;

...Expand

: 108-95-2
phenol

A: 1806-29-7
2,2'-dihydroxybiphenyl

B: 92-88-6
4,4'-Dihydroxybiphenyl

C: 611-62-1
2,4'-dihydroxybiphenyl

D: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With di-tert-butyl peroxide at 140℃; for 24h; Further byproducts given;
With dihydrogen peroxide; horseradish peroxidase In phosphate buffer at 25℃; pH=7; Kinetics; Polymerization;

...Expand

: 836-07-7
1-iodo-2-(4-methoxyphenoxy)benzene

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With hydrogen iodide; acetic acid

: 108-95-2
phenol

A: 2417-10-9
2-Phenoxyphenol

B: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
In water under 1E-06 Torr; Product distribution; Mechanism; Irradiation; ion-molecule reaction;

: 39064-93-2
4-(4-(tert-butyl)phenoxy)phenol

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With aluminium trichloride; nitromethane

: 13808-13-4
4-Phenoxy-2,4,6-tri-tert-butyl-cyclohexa-2,5-dien-1-on

: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With aluminium trichloride; nitromethane

: 108-95-2
phenol

A: 2417-10-9
2-Phenoxyphenol

B: 1806-29-7
2,2'-dihydroxybiphenyl

C: 92-88-6
4,4'-Dihydroxybiphenyl

D: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With phosphate buffer; dihydrogen peroxide; horseradish peroxidase at 20℃; for 2h; oxidative coupling; Further byproducts given;

...Expand

: 108-95-2
phenol

A: 2417-10-9
2-Phenoxyphenol

B: 1806-29-7
2,2'-dihydroxybiphenyl

C: 10181-94-9
((p-Phenoxy)-4-phenoxy)phenol

D: 831-82-3
4-Phenoxyphenol

Conditions

Conditions	Yield
With phosphate buffer; dihydrogen peroxide; horseradish peroxidase at 20℃; for 2h; oxidative coupling; Further byproducts given;

...Expand

: 831-82-3
4-Phenoxyphenol

: 124-63-0
methanesulfonyl chloride

: 23419-81-0
4-phenoxyphenyl methanesulfonate

Conditions

Conditions	Yield
With pyridine In dichloromethane Inert atmosphere; Glovebox;	100%

: 831-82-3
4-Phenoxyphenol

: 4-phenoxyphenyl sulfurofluoridate

Conditions

Conditions	Yield
With fluorosulfonyl fluoride; triethylamine In 1,4-dioxane at 20℃; for 24h;	100%
With [(4-acetamidophenyl)(fluorosulfonyl)amino]sulfonyl fluoride; 1,8-diazabicyclo[5.4.0]undec-7-ene In tetrahydrofuran at 20℃; for 0.166667h;	90%

: 831-82-3
4-Phenoxyphenol

: 503-60-6
3,3-dimethyl-allyl chloride

: 42873-58-5
3-methylbut-2-en-1-yl 4-phenoxyphenyl ether

Conditions

Conditions	Yield
With potassium hydroxide In dimethyl sulfoxide Ambient temperature;	99%

: 32315-10-9
bis(trichloromethyl) carbonate

: 831-82-3
4-Phenoxyphenol

: 214690-17-2
4-(phenoxy)phenyl chloroformate

Conditions

Conditions	Yield
With N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 0℃; for 12h;	99%

: 831-82-3
4-Phenoxyphenol

: 98-88-4
benzoyl chloride

: 80202-05-7
4-phenoxyphenyl benzoate

Conditions

Conditions	Yield
In pyridine for 1.16667h; Cooling with ice;	98%
With sodium hydroxide

: 2-chloroethyl-vinyl ether

: 831-82-3
4-Phenoxyphenol

: 1-(2-chloroethoxy)-1-[(4-phenoxy)-phenoxy]-ethane

Conditions

Conditions	Yield
With hydrogenchloride In diethyl ether	98%

: 4,4'-methylenebis(cyclohexyl urea)

: 831-82-3
4-Phenoxyphenol

: 1266555-58-1
C39H42N2O6

Conditions

Conditions	Yield
at 0 - 80℃; for 26280h; Product distribution / selectivity;	98%

: 2188-09-2
1,6-hexamethylene diurea

: 831-82-3
4-Phenoxyphenol

: 1266555-27-4
C32H32N2O6

Conditions

Conditions	Yield
at 0 - 50℃; for 26280h; Product distribution / selectivity;	98%

: 831-82-3
4-Phenoxyphenol

: 10097-06-0
2,4-tolylene diurea

: 1266555-71-8
C33H26N2O6

Conditions

Conditions	Yield
at 0 - 80℃; for 26280h; Product distribution / selectivity;	98%

: 831-82-3
4-Phenoxyphenol

: 54582-59-1
2-chloro-4-phenoxyphenol

Conditions

Conditions	Yield
With diisobutylamine; sulfuryl dichloride In toluene at 70℃; for 1h;	97%
With N-chloro-succinimide In benzene for 48h; Heating;	46%
With sodium hypochlorite
With sulfuryl dichloride at 60℃;

: 831-82-3
4-Phenoxyphenol

: 108-24-7
acetic anhydride

: 19082-52-1
4-phenoxyphenyl acetate

Conditions

Conditions	Yield
With pyridine at 20℃; for 16h;	97%
With pyridine for 16h; Ambient temperature;	87%
With triethylamine In dichloromethane at 0 - 10℃;

: 831-82-3
4-Phenoxyphenol

: 96-32-2
bromoacetic acid methyl ester

: 787575-61-5
(4-phenoxyphenoxy)acetic acid methyl ester

Conditions

Conditions	Yield
With potassium carbonate In N,N-dimethyl-formamide at 80℃; for 24h;	97%

: 1493-13-6
trifluorormethanesulfonic acid

: 831-82-3
4-Phenoxyphenol

: 4-phenoxyphenyl trifluoromethanesulfonate

Conditions

Conditions	Yield
With pyridine In dichloromethane at 0 - 20℃; for 12h; Inert atmosphere;	97%

: 831-82-3
4-Phenoxyphenol

: 106-95-6
allyl bromide

: 25345-76-0
1-phenoxy-4-allyloxybenzene

Conditions

Conditions	Yield
With potassium carbonate; sodium iodide In acetone for 14h; Reflux;	96%
With potassium hydroxide In dimethyl sulfoxide Ambient temperature;	93%
With potassium carbonate In acetone
With potassium carbonate; potassium iodide In acetone at 60℃; for 18h;

: 831-82-3
4-Phenoxyphenol

: 999-97-3
1,1,1,3,3,3-hexamethyl-disilazane

: 16166-58-8
Trimethyl-(4-phenoxy-phenoxy)-silane

Conditions

Conditions	Yield
at 20℃; for 1.5h; Neat (no solvent); Air atmosphere;	96%

: 766-11-0
5-bromo-2-fluoropyridine

: 831-82-3
4-Phenoxyphenol

: 904961-14-4
5-Bromo-2-(4-phenoxy-phenoxy)-pyridine

Conditions

Conditions	Yield
With potassium carbonate In dimethyl sulfoxide at 160℃; for 0.5h; Product distribution / selectivity; Microwave irradiation;	95.6%

: 831-82-3
4-Phenoxyphenol

: 57057-80-4
ethyl (S)-2-[[(4-methylphenyl)sulfonyl]oxy]propanoate

: 100325-83-5
(R)-ethyl 2-(4-phenoxyphenoxy)propionate

Conditions

Conditions	Yield
With potassium carbonate In acetonitrile for 240h; Ambient temperature;	95%

: 831-82-3
4-Phenoxyphenol

: 98-59-9
p-toluenesulfonyl chloride

: 144150-76-5
4-phenoxyphenyl 4-methylbenzenesulfonate

Conditions

Conditions	Yield
With pyridine at 20℃; for 4h;	95%
With sodium hydride In tetrahydrofuran Ambient temperature;

: 831-82-3
4-Phenoxyphenol

: 446-52-6
2-Fluorobenzaldehyde

: 2-(4'-phenoxyphenoxy)benzaldehyde

Conditions

Conditions	Yield
With potassium carbonate In N,N-dimethyl acetamide for 2h; Heating;	95%
With potassium carbonate In N,N-dimethyl acetamide at 170℃; for 6h; Inert atmosphere;	73%

: 831-82-3
4-Phenoxyphenol

: 115314-14-2
(2s)-(+)-glycidyl 3-nitrobenzenesulfonate

: 250778-96-2
(2 S)-2-[(4-phenoxyphenoxy)methyl]oxirane

Conditions

Conditions	Yield
In N,N-dimethyl-formamide; mineral oil	95%
With sodium hydride In N,N-dimethyl-formamide at 20℃;

: 624-28-2
2,5-dibromopyridine

: 831-82-3
4-Phenoxyphenol

: 904961-14-4
5-Bromo-2-(4-phenoxy-phenoxy)-pyridine

Conditions

Conditions	Yield
With potassium carbonate In N,N-dimethyl-formamide at 200℃; for 0.5h; Product distribution / selectivity; Microwave irradiation;	95%

: 831-82-3
4-Phenoxyphenol

: 127-00-4
1-Chloro-2-propanol

: 57650-78-9
(R,S)-2-hydroxypropyl 4-phenoxyphenyl ether

Conditions

Conditions	Yield
With sodium hydroxide In water; toluene at 85℃; for 0.166667h; Temperature; Reagent/catalyst;	95%

: 591-50-4
iodobenzene

: 201230-82-2
carbon monoxide

: 831-82-3
4-Phenoxyphenol

: 80202-05-7
4-phenoxyphenyl benzoate

Conditions

Conditions	Yield
With dicarbonyl(acetylacotonato)rhodium(I); triethylamine; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene In toluene at 120℃; for 48h; Inert atmosphere; Autoclave; Schlenk technique;	95%
With palladium diacetate; potassium carbonate at 100℃; under 5250.53 Torr; for 3h; Catalytic behavior;	91 %Chromat.

...Expand

: 78632-23-2
3-ureidomethyl-3,5,5-trimethylcyclohexyl urea

: 831-82-3
4-Phenoxyphenol

: 1266555-43-4
C36H38N2O6

Conditions

Conditions	Yield
at 0 - 80℃; for 26280h; Product distribution / selectivity;	94.1%

: 831-82-3
4-Phenoxyphenol

: 4,4'-diphenylmethanediurea

: 1267647-57-3
C39H30N2O6

Conditions

Conditions	Yield
at 0 - 80℃; for 26280h; Product distribution / selectivity;	94.1%

: 831-82-3
4-Phenoxyphenol

: 74-88-4
methyl iodide

: 1655-69-2
1-methoxy-4-phenoxy-benzene

Conditions

Conditions	Yield
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 17h;	94%
With potassium tert-butylate In tetrahydrofuran at 20℃; for 18h;

: 882055-34-7
1-(2-bromo-1,3-benzothiazol-6-yl)ethanone

: 831-82-3
4-Phenoxyphenol

: 946661-97-8
1-[2-(4-phenoxyphenoxy)-1,3-benzothiazol-6-yl]ethanone

Conditions

Conditions	Yield
With potassium carbonate In dimethyl sulfoxide at 130℃; for 3h;	94%

: 17739-45-6, 59146-56-4
2-(2-bromoethoxy)tetrahydropyran

: 831-82-3
4-Phenoxyphenol

: 126301-65-3
2-(4-phenoxyphenoxy)-ethyl-tetrahydropyranyl-ether

Conditions

Conditions	Yield
With potassium hydroxide In dimethyl sulfoxide at 23℃; for 16h;	94%

: 831-82-3
4-Phenoxyphenol

: 145279-04-5
2-nitro-4-phenoxyphenol

Conditions

Conditions	Yield
With nitric acid In tert-butyl methyl ether; water at 25℃; for 1.75h;	93.3%
With ammonium nitrate; silica-gel-supported sulfuric acid In dichloromethane at 20℃; for 1.33333h; regioselective reaction;	87%
With aluminum(III) nitrate nonahydrate; sulfuric acid; silica gel; silica gel In dichloromethane at 20℃; for 0.333333h;	72%

4-Phenoxyphenol Specification

4-Phenoxyphenol, with the CAS registry number 831-82-3, is also named as Hydroquinone monophenyl ether. It belongs to the product categories of Aromatic Phenols; Phenoles and thiophenoles; Building Blocks; C9 to C20+; Chemical Synthesis; Organic Building Blocks; Oxygen Compounds; Phenols. Its EINECS number is 212-611-1. This chemical's molecular formula is C₁₂H₁₀O₂ and molecular weight is 186.21. What's more, its systematic name is 4-Phenoxyphenol. This chemical is stable at common pressure and temperature, and it should be sealed and stored in a cool and dry place. Moreover, it should be protected from strong oxidants. It is used as an intermediate for pesticide.

Physical properties of 4-Phenoxyphenol are: (1)ACD/LogP: 3.35; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 3.35; (4)ACD/LogD (pH 7.4): 3.35; (5)ACD/BCF (pH 5.5): 207.01; (6)ACD/BCF (pH 7.4): 206.57; (7)ACD/KOC (pH 5.5): 1582.66; (8)ACD/KOC (pH 7.4): 1579.33; (9)#H bond acceptors: 2; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 29.46 Å²; (13)Index of Refraction: 1.605; (14)Molar Refractivity: 54.578 cm³; (15)Molar Volume: 158.45 cm³; (16)Polarizability: 21.636×10^-24cm³; (17)Surface Tension: 46.3 dyne/cm; (18)Density: 1.175 g/cm³; (19)Flash Point: 141.446 °C; (20)Enthalpy of Vaporization: 57.698 kJ/mol; (21)Boiling Point: 313.761 °C at 760 mmHg; (22)Vapour Pressure: 0 mmHg at 25°C.

Preparation: this chemical can be prepared by 1-methoxy-4-phenoxy-benzene at the temperature of 185 °C. This reaction will need reagents lithium diisopropylamide, 1,3-dimethyl-2-imidazolidinone and solvents heptane, tetrahydrofuran, ethylbenzene with the reaction time of 12 hours. The yield is about 84%.

4-Phenoxypheno can be prepared by 1-methoxy-4-phenoxy-benzene at the temperature of 185 °C

Uses of 4-Phenoxyphenol: it can be used to produce 2-(4-phenoxy-phenoxy)-benzaldehyde by heating. It will need reagent K₂CO₃ and solvent N,N-dimethyl-acetamide with the reaction time of 2 hours. The yield is about 95%.

4-Phenoxyphenol can be used to produce 2-(4-phenoxy-phenoxy)-benzaldehyde by heating

When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes, respiratory system and skin. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. When using it, you need wear suitable protective clothing, gloves and eye/face protection.

You can still convert the following datas into molecular structure:
(1)SMILES: O(c1ccccc1)c2ccc(O)cc2
(2)Std. InChI: InChI=1S/C12H10O2/c13-10-6-8-12(9-7-10)14-11-4-2-1-3-5-11/h1-9,13H
(3)Std. InChIKey: ZSBDGXGICLIJGD-UHFFFAOYSA-N

Product Name

4-Phenoxyphenol

Synthetic route

4-Phenoxyphenol Specification

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