D209317

Diphenylmethane

99%

• Synonym(s): Benzylbenzene, Methylenedibenzene
• Linear Formula: (C₆H₅)₂CH₂
• CAS Number: 101-81-5
• Molecular Weight: 168.23
• Beilstein/REAXYS Number: 1904982
• EC Number: 202-978-6
• MDL number: MFCD00004781
• UNSPSC Code: 12352100
• PubChem Substance ID: 24893624
• NACRES: NA.22

Properties

• vapor density: 5.79 (vs air)
• Quality Level: 200
• vapor pressure: <1 mmHg ( 77 °C)
• assay: 99%
• form: liquid
• autoignition temp.: 905 °F
• refractive index: n20/D 1.577 (lit.)
• bp: 264 °C (lit.)
• mp: 22-24 °C (lit.)
• density: 1.006 g/mL at 25 °C (lit.)

Description

General description

Diphenylmethane is an aromatic compound used as a key building block in the synthesis of elastase inhibitors.

Application

• Diphenylmethane is widely used in the synthesis of luminogens for aggregation-induced emission (AIE).
• It is used in the preparation of a polymerization initiator, diphenylmethyl potassium (DPMK).
• It is one of the precursors in the synthesis of a dendrimeric polycyclic aromatic hydrocarbon (PAH), hexakis[4-(1,1,2-triphenyl-ethenyl)phenyl]benzene.

Safety Information

• pictograms: GHS09
• signalword: Warning
• hcodes: H410
• pcodes: P273 - P391 - P501
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 1
• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 2
• flash_point_f: 266.0 °F
• flash_point_c: 130 °C
• ppe: dust mask type N95 (US), Eyeshields, Gloves