4,4'-Biphenol
- CAS No.
- 92-88-6
- Chemical Name:
- 4,4'-Biphenol
- Synonyms
- BIPHENOL;DOD;PPDP;BIPHENOL S;4,4'-DIHYDROXYBIPHENYL;UBL5;[1,1'-Biphenyl]-4,4'-diol;(1R,2R)-Cyclohexane-1,2-diol;asmdod;Asm dod
- CBNumber:
- CB7448740
- Molecular Formula:
- C12H10O2
- Molecular Weight:
- 186.21
- MDL Number:
- MFCD00002348
- MOL File:
- 92-88-6.mol
- MSDS File:
- SDS
Melting point | 280-282 °C(lit.) |
---|---|
Boiling point | 280.69°C (rough estimate) |
Density | 1.22 |
vapor pressure | 0Pa at 25℃ |
refractive index | 1.6010 (estimate) |
storage temp. | Sealed in dry,Room Temperature |
form | Powder |
pka | 9.74±0.26(Predicted) |
color | Off-white to light beige or light gray |
Water Solubility | sparingly soluble |
BRN | 1908886 |
LogP | 2.7 at 20℃ |
CAS DataBase Reference | 92-88-6(CAS DataBase Reference) |
EWG's Food Scores | 2 |
FDA UNII | R8994A0904 |
NIST Chemistry Reference | p,p'-Biphenol(92-88-6) |
EPA Substance Registry System | 4,4'-Biphenyldiol (92-88-6) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | GHS02,GHS07 |
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Signal word | Warning | |||||||||
Hazard statements | H252-H317-H412 | |||||||||
Precautionary statements | P235-P261-P272-P273-P280-P302+P352 | |||||||||
Hazard Codes | Xn | |||||||||
Risk Statements | 21-36/37/38-37/38/68-36 | |||||||||
Safety Statements | 26-36-24/25-36/37 | |||||||||
RIDADR | 3077 | |||||||||
WGK Germany | 2 | |||||||||
RTECS | DV4725000 | |||||||||
TSCA | Yes | |||||||||
HazardClass | 9 | |||||||||
PackingGroup | III | |||||||||
HS Code | 29061900 | |||||||||
Toxicity | LD50 orl-rat: 9850 mg/kg TXAPA9 28,313,74 | |||||||||
NFPA 704 |
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4,4'-Biphenol price More Price(39)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich | 168734 | 4,4′-Dihydroxybiphenyl 97% | 92-88-6 | 25g | $120 | 2024-03-01 | Buy |
Sigma-Aldrich | 168734 | 4,4′-Dihydroxybiphenyl 97% | 92-88-6 | 100g | $356 | 2024-03-01 | Buy |
TCI Chemical | B0464 | 4,4'-Dihydroxybiphenyl >99.0%(GC) | 92-88-6 | 25g | $60 | 2024-03-01 | Buy |
TCI Chemical | B0464 | 4,4'-Dihydroxybiphenyl >99.0%(GC) | 92-88-6 | 100g | $138 | 2024-03-01 | Buy |
Alfa Aesar | B22240 | 4,4'-Dihydroxybiphenyl, 99% | 92-88-6 | 25g | $84 | 2024-03-01 | Buy |
4,4'-Biphenol Chemical Properties,Uses,Production
Chemical Properties
Powder
Uses
Biphenol is an intermediate used in the manufacture of thermoplastics such as liquid crystalline polymers (LCP), polyesters, polycarbonates and polysulfones.
Uses
4,4'-biphenol be used intermediate liquid crystal polymers raw materials. Synthetic polymers, due to its excellent heat resistance, it is used as polyester, urethane modified monomer, polycarbonate, polysulfone, and epoxy resin, for the manufacture of an excellent engineering plastics and composite materials. Antioxidant antioxidants for rubber and plastics. Dye intermediates or petroleum products stabilizer.
Uses
Intermediates of Liquid Crystals
Definition
ChEBI: A member of the class of hydroxybiphenyls that is biphenyl with hydroxy groups at positions 4 and 4'.
Production Methods
4,4'-Biphenol can be synthesized in excellent yields by debutylation of 3,3',5,5'-tetra-tert-butyl-4,4'-dihydroxybiphenyl. Other production processes are the alkaline fusion of 4,4'-biphenyldisulfonic acid, the boil down of benzidinebisdiazonium salts, and the decarboxylation of 4,4'-dihydroxybiphenyl-2-carboxylic acid. Symmetrically alkylated 4,4'-dihydroxybiphenyls such as 4,4'-dihydroxy-2,2',3,3',5,5',6,6'-hexamethylbiphenyl are preferably obtained by the oxidative coupling of the corresponding substituted monophenols. Here, diphenoquinones are generally formed in the first step which must be reduced. Phenol itself always gives isomeric mixtures of dihydroxybiphenyls on coupling with various oxidants. These mixtures are also formed by alkaline fusion of 4,4'-dihydroxybiphenylsulfone.
Flammability and Explosibility
Not classified
Safety Profile
Poison by intraperitoneal route.Moderately toxic by skin contact. Mildly toxic byingestion. Human mutation data reported. When heated todecomposition it emits acrid smoke and irritating fumes.
Purification Methods
Recrystallise the biphenol from aqueous EtOH preferably under N2 to avoid oxidation to the extended qiunone. It is characterized as the dimethyl derivative (4,4’-dimethoxybiphenyl) from which it is prepared by demethylation. The dimethoxy derivative has m 176.5-177o (from AcOH, EtOH, hexane or *C6H6) and sublimes in vacuo. [Williamson & Rodebush J Am Chem Soc 63 3019 1941, Beilstein 6 I 485, 6 II 962, 6 III 6389, 6 IV 6651.]
4,4'-Biphenol Preparation Products And Raw materials
Raw materials
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Preparation Products
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Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
Jiangxi Huihe Chemical Co., Ltd. | +86-19189228086 +8618858568638 | wuzhouding@huihecrop.com | China | 886 | 58 |
JiangXi Bobert Imp&Exp Co.,LTD | +8618071643627 | rze2024@163.com | China | 226 | 58 |
Hebei Weibang Biotechnology Co., Ltd | +8615531157085 | abby@weibangbio.com | China | 8811 | 58 |
Hebei Mojin Biotechnology Co., Ltd | +86 13288715578 +8613288715578 | sales@hbmojin.com | China | 12839 | 58 |
Hebei Chuanghai Biotechnology Co,.LTD | +86-13131129325 | sales1@chuanghaibio.com | China | 5892 | 58 |
Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20287 | 58 |
Hebei Saisier Technology Co., LTD | +86-18400010335 +86-18034520335 | admin@hbsaisier.cn | China | 1015 | 58 |
Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3002 | 58 |
Hebei Longbang Technology Co., LTD | +86-18633929156 +86-18633929156 | admin@hblongbang.com | China | 941 | 58 |
HebeiShuoshengImportandExportco.,Ltd | +86-18532138899 +86-18532138899 | L18532138899@163.com | China | 939 | 58 |
View Lastest Price from 4,4'-Biphenol manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
---|---|---|---|---|---|---|---|---|
2024-11-25 | 4,4'-Biphenol
92-88-6
|
US $10.00 / kg | 1kg | 99% | 20ton | Hebei Zhuanglai Chemical Trading Co.,Ltd | ||
2024-11-25 | 4,4'-Biphenol
92-88-6
|
US $6.00 / kg | 1kg | 99% | 2000KG/Month | HebeiShuoshengImportandExportco.,Ltd | ||
2024-11-25 | 4,4'-Biphenol
92-88-6
|
US $6.00 / kg | 1kg | More than 99% | 2000KG/Month | Hebei Longbang Technology Co., Ltd |
- 4,4'-Biphenol
92-88-6
- US $10.00 / kg
- 99%
- Hebei Zhuanglai Chemical Trading Co.,Ltd
- 4,4'-Biphenol
92-88-6
- US $6.00 / kg
- 99%
- HebeiShuoshengImportandExportco.,Ltd
- 4,4'-Biphenol
92-88-6
- US $6.00 / kg
- More than 99%
- Hebei Longbang Technology Co., Ltd
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