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
- MOL File:
- 92-88-6.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/5/30 16:33:02
| 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) |
| 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 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
|
4,4'-Biphenol price More Price(6)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 168734 | 4,4′-Dihydroxybiphenyl 97% | 92-88-6 | 25G | ₹5228.48 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 168734 | 4,4′-Dihydroxybiphenyl 97% | 92-88-6 | 100G | ₹10814.18 | 2022-06-14 | Buy |
| TCI Chemicals (India) | B0464 | 4,4'-Dihydroxybiphenyl min. 99.0 % | 92-88-6 | 25G | ₹3500 | 2022-05-26 | Buy |
| TCI Chemicals (India) | B0464 | 4,4'-Dihydroxybiphenyl min. 99.0 % | 92-88-6 | 100G | ₹7500 | 2022-05-26 | Buy |
| TCI Chemicals (India) | B0464 | 4,4'-Dihydroxybiphenyl min. 99.0 % | 92-88-6 | 500G | ₹17200 | 2022-05-26 | Buy |
4,4'-Biphenol Chemical Properties,Uses,Production
Chemical Properties
Powder
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.
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.
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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| SAGAR LIFE SCIENCES PVT LTD | +91-8770359041 +91-8770359041 | Gujarat, India | 79 | 58 | Inquiry |
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| HiMedia Laboratories | 91-22-61471919 | Maharashtra, India | 1843 | 58 | Inquiry |
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| Souvenier Chemicals | 08048372762Ext 645 | Mumbai, India | 396 | 58 | Inquiry |
| SI Group (India) Limited | +91 1 518 347 4200 | Maharashtra, India | 25 | 58 | Inquiry |
| Metropolitan Eximchem Limited | +91 22 2408 1528 | Mumbai, India | 48 | 58 | Inquiry |
| VASIN BIO LIFE SCIENCES PVT LTD | 9491644688 | Hyderabad, India | 2096 | 58 | Inquiry |
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