123560

α,α-Dibromotoluene

97%

• Synonym(s): Benzal bromide
• Linear Formula: C₆H₅CHBr₂
• CAS Number: 618-31-5
• Molecular Weight: 249.93
• Beilstein: 1906098
• EC Number: 210-543-7
• MDL number: MFCD00000130
• UNSPSC Code: 12352100
• PubChem Substance ID: 24847575
• NACRES: NA.22

Properties

• Assay: 97%
• form: liquid
• refractive index: n20/D 1.614 (lit.)
• bp: 156 °C/23 mmHg (lit.)
• density: 1.51 g/mL at 25 °C (lit.)
• SMILES string: BrC(Br)c1ccccc1
• InChI: 1S/C7H6Br2/c8-7(9)6-4-2-1-3-5-6/h1-5,7H
• InChI key: VCJZTATVUDMNLU-UHFFFAOYSA-N

Description

General description

α,α-Dibromotoluene undergoes polymerization with excess Mg to give poly(phenylmethylene)s. It reacts with NaSO₂Me at 110°C to yield a mixture of the monosulfone and α,α-disulfone. It undergoes copolycondensation with α,α′-dibromo-p-xylylene in the presence of excess Mg via nucleophilic substitution of in situ generated Grignard reagents.

Safety Information

• Pictograms: GHS06,GHS05
• Signal Word: Danger
• Hazard Statements: H301 + H311 + H331,H314
• Precautionary Statements: P261 - P271 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Oral - Skin Corr. 1B
• Storage Class Code: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• Flash Point(F): 228.2 °F - closed cup
• Flash Point(C): 109 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves