Description

Biphenyl (CAS No. 92-52-4), with the molecular formula C₁₂H₁₀ and IUPAC name 1,1′-biphenyl, is a versatile organic compound widely used in research and industrial applications. This high-purity aromatic hydrocarbon appears as white crystalline flakes or powder with a distinct aromatic odor. Biphenyl exhibits excellent thermal stability, making it valuable as a heat transfer fluid and in high-temperature applications. Our premium-grade biphenyl is rigorously tested to ensure ≥99% purity, with trace impurities carefully controlled to meet the demands of sensitive experiments. Suitable for use as an intermediate in organic synthesis, a solvent, or a component in dye carriers, this product is packaged under inert gas to maintain stability and purity. Available in quantities ranging from grams to bulk orders, our biphenyl is ideal for pharmaceutical research, material science, and specialty chemical manufacturing.

Properties

• CAS Number: 92-52-4
• Complexity: 100
• IUPAC Name: biphenyl
• InChI: InChI=1S/C12H10/c1-3-7-11(8-4-1)12-9-5-2-6-10-12/h1-10H
• InChI Key: ZUOUZKKEUPVFJK-UHFFFAOYSA-N
• LogP: log Kow = 4.01
• Exact Mass: 154.078250319
• Molecular Formula: C12H10
• Molecular Weight: 154.21
• SMILES: C1=CC=C(C=C1)C2=CC=CC=C2
• Monoisotopic Mass: 154.078250319
• Physical Description: Biphenyl appears as a clear colorless liquid with a pleasant odor. Flash point 180 °F. Insoluble in water. Vapors are heavier than air. Used to manufacture other chemicals and as a fungicide.
• Color/Form: White scales
• Odor: Pleasant, peculiar odor
• Boiling Point: 489 to 491 °F at 760 mmHg
• Melting Point: 156 to 160 °F
• Flash Point: 235 °F
• Solubility: Insoluble
• Density: 0.992 at 68 °F – Less dense than water; will float
• Vapor Density: 5.31 – Heavier than air; will sink
• Vapor Pressure: 0.005 mmHg
• Henry’s Law Constant: Henry’s Law constant = 3.08X10-4 atm-cu m/mole at 25 °C
• Stability/Shelf Life: Very stable in acidic & alkaline media.
• Autoignition Temperature: 1004 °F
• Viscosity: 0.98 cSt at 100 °C
• Heat of Combustion: 624.3 kJ/mol
• Heat of Vaporization: 397.0 J/g at 100 °C
• Ionization Potential: 7.95 eV
• Odor Threshold: Odor Threshold Low: 0.01 [ppm]
• Refractive Index: Index of refraction: 1.475 @ 20 °C/D; 1.588 @ 75 °C/D
• Synonyms: Biphenyl, 1,1′-Biphenyl, 92-52-4, Phenylbenzene, DIPHENYL, 1,1′-Diphenyl, Phenador-X, Tetrosin LY, Carolid AL, Biphenyl [BSI:ISO], 1,1-Biphenyl, Caswell No. 087, FEMA No. 3129, CCRIS 935, NSC 14916, HSDB 530, UNII-2L9GJK6MGN, MCS 1572, EINECS 202-163-5, CP 390, EPA Pesticide Chemical Code 017002, DTXSID4020161, CHEBI:17097, 1, 1′-Diphenyl, AI3-00036, BIPHENYL [FHFI], BIPHENYL [HSDB], BIPHENYL [ISO], DIPHENYL [MI], NSC-14916, DIPHENYL [MART.], BIPHENYL [USP-RS], DTXCID60161, INS NO.230, FEMA 3129, INS-230, EC 202-163-5, E-230, DIPHENYL (MART.), BIPHENYL (USP-RS), Diphenyl (Biphenyl), Dibenzene, Diphenyl (OSHA), Biphenyl (ACGIH:OSHA), Phenylbenzene, 1,1’Biphenyl, USEPA/OPP Pesticide Code: 017002, 202-163-5, 2-ethyl 3,4-dimethyl 4′-bromobiphenyl-2,3,4-tricarboxylate, 3-methylsulfanyl-biphenyl-4-carboxylic acid, 4′-bromo-3-piperidin-1-yl-biphenyl-4-carbonitrile, inchi=1/c12h10/c1-3-7-11(8-4-1)12-9-5-2-6-10-12/h1-10, zuouzkkeupvfjk-uhfffaoysa-n, Bibenzene, Xenene, Lemonene, PHPH, DIPHENYL-4-D1, MFCD00003054, 2L9GJK6MGN, 4819-98-1, E230, CHEMBL14092, Biphenyl-4,4′-d2, BNL, CAS-92-52-4, diphenyl, 14C-labeled, meta biphenyl, bi-phenyl, 4-Biphenyl, Biphenyl-UL-14C, 4,4′-biphenyl, 1,1”-biphenyl, Biphenyl, >=99%, WLN: RR, SCHEMBL164, 1,1′-Biphenyl, 9CI, bmse000506, SCHEMBL2576, SCHEMBL2960, SCHEMBL38202, Biphenyl, analytical standard, BIDD:ER0669, SCHEMBL115447, SCHEMBL144569, SCHEMBL144570, SCHEMBL163399, SCHEMBL184970, SCHEMBL184971, SCHEMBL196583, SCHEMBL509984, SCHEMBL608940, SCHEMBL610112, SCHEMBL1422995, SCHEMBL1615164, SCHEMBL2425769, SCHEMBL2777432, SCHEMBL4172268, SCHEMBL4174818, SCHEMBL4623595, SCHEMBL4624349, SCHEMBL6797979, SCHEMBL6937749, SCHEMBL9174094, SCHEMBL9175726, SCHEMBL9213585, SCHEMBL14777412, SCHEMBL15602711, SCHEMBL20183595, SCHEMBL23781280, SCHEMBL23781281, GAA12099, NSC14916, Tox21_202108, Tox21_300167, BDBM50168002, Biphenyl 100 microg/mL in Methanol, Biphenyl, ReagentPlus(R), 99.5%, SBB060084, STL264192, Biphenyl 10 microg/mL in Cyclohexane, AKOS000119944, FB32431, NCGC00091836-01, NCGC00091836-02, NCGC00091836-03, NCGC00091836-04, NCGC00254175-01, NCGC00259657-01, Biphenyl, Vetec(TM) reagent grade, 99%, BS-42211, DB-038208, B0224, B0465, Biphenyl, PESTANAL(R), analytical standard, NS00010251, ST51046325, EN300-18009, C06588, G77244, Q410915, Biphenyl, certified reference material, TraceCERT(R), F9995-1632, Biphenyl, United States Pharmacopeia (USP) Reference Standard, 26008-28-6

Application

Biphenyl serves as a key intermediate in the production of polychlorinated biphenyls (PCBs) and other derivatives for industrial applications. In research, it functions as a solvent and heat transfer fluid due to its thermal stability. The compound finds use in organic synthesis, particularly in Suzuki coupling reactions for creating biaryl structures. Biphenyl derivatives are important in liquid crystal displays and as UV stabilizers in plastics.

Safety and Hazards

GHS Hazard Statements

• H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
• H350: May cause cancer [Danger Carcinogenicity]
• H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
• H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
• H410: Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P203, P260, P261, P264, P270, P271, P273, P280, P304+P340, P318, P319, P391, P403+P233, P405, and P501

Hazard Classes and Categories

• Acute toxicity – Category 5
• Acute toxicity – Category 5
• Skin corrosion/irritation – Category 3
• Serious eye damage/eye irritation – Category 2B
• Specific target organ toxicity – Single exposure – Category 3
• Specific target organ toxicity – Repeated exposure – Category 1 , Category 2
• Hazardous to the aquatic environment – Category 1

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.