General Information
Common Name (ISO) Tralopyril(Econea)
IUPAC Name 4-bromo-2-(4-chlorophenyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile
CAS Name :1H-Pyrrole-3-carbonitrile, 4-bromo-2-(4-chlorophenyl)-5-(trifluoromethyl)
CAS Registry No. 122454-29-9
Molecular Formula C12H5BrClF3N2
Molecular Weight 349.5
Structural Formula

Chemical And Physical Properties
These properties are typical but do not constitute specifications:

Appearance White to off-white powder
Purity (Chromatography) Minimum 98.0% w/w
Water Content (Karl-Fisher Titration) Maximum 0.5% w/w
Particle Size Distribution (Laser Diffraction)
D50: 4.0-10.0 µm; D99: maximum 25.0 µm
Oil Absorption Value (ISO 787-5) 28 ml per 100 g
Density 1.714 g/ml at 20°C
Vapour Pressure 1.9 x 10-8 Pa at 20°C; 4.6 x 10-8 Pa at 25°C
Dissociation Constant pKa = 7.08 at 26°C
pH 5.16 at 22°C (0.1% w/v dispersion in distilled water)
Solubility In Water And Organic Solvents
Solubility in Water
Column Elution Solubility, in mg/l, at 20°C
Distilled Water (pH 4.9) 0.17
Artificial Seawater (pH 8.1) 0.16

Solubility in Organic Solvents
Solubility, in g/l, at 20°C
Acetone
Ethyl acetate
Methanol
n-Octanol
n-Heptane
Xylene