144-145 AdegC; IR (CHCl3
) max cm-1 3433, 2929, 1460, 1375, 1040, 762; EIMS m/z (rel.int) [M]+ 478 (08), 460 (21), 446 (40), 432 (23), 404 (38), 376 (49), 362 (64), 320 (55), 264 (68), 166 (69), 125 (48), 111 (40), 97 (72), 83 (100).
The EtOAc fraction was subjected to silica gel column chromatography (CC) eluted with CHCl3
and a gradient of CHCl3MeOH to yield five fractions (Fr.
The supernatants were then extracted with ice-cold CHCl3
: MeOH (2 :1) and washed with CHCl3
The crude methanolic extract was suspended in distilled water with constant stirring and fractionated with n-hexane, chloroform (CHCl3
), ethyl acetate (EtOAc), and n-butanol, respectively .
N-caproic acid, N,N-dimethylformamide, N,O-bis(trimethylsilyl)trifluoroacetamide, anhydrous ethanol, pyridine, ethyl chloroformate (ECF), chloroform (CHCl3
), sodium hydroxide, anhydrous sodium sulfate, methoxamine hydrochloride (97%), and trypan blue stain.
The stable yellowish brown complex product is soluble in solvents such as EtOH, MeOH, DMF and DMSO, moderately soluble in CHCl3
and Me2CO, where as completely insoluble in CCl4 and water.
The melting of this dye in a solvent of chloroform, which is characterized by the following specifications Molecular Formula: CHCl3
, Molecular Weight: 119.4 g/mole,Density:1.483 g/cm3, Melting point: 63.5 [degrees]C, 210 K,-82[degrees]F, Boiling point: 61.2[degrees]C, 334 K, 142[degrees]F, Refractive index (nD): 1.4459 , with different concentrations.
is the chemical formula for which organic compound, whose use in refrigerants is being phased out?
A and B having Rf values of 0.17 and 0.44 respectively by using solvent system of CHCl3
extract of barries (3.1g) was subjected to Si-gel column chromatography using hexane CHCl3
and MeOH mixtures by increasing polarities.
Solubility Polymer NMP DMF DMAC DMSO THF PAEK-CN-I + + + + + + + + + + Cured PAEK-CN-I - - - - - PAEK-CN-II + + + + + + + + + + Cured PAEK-CN-II - - - - - PAEK-CN-III + + + + + + + + + + Cured PAEK-CN-III - - - - - Solubility Polymer CHCl3
Acetone Toluene PAEK-CN-I + + - Cured PAEK-CN-I - - - PAEK-CN-II + + - Cured PAEK-CN-II - - - PAEK-CN-III + + - Cured PAEK-CN-III - - - + + : soluble in room temperature; +: soluble on heating; -, insoluble.
1985); moist soil (5 g on an oven-dry basis) was fumigated for 24 h at 25[degrees]C with ethanol-free CHCl3
. Following fumigant removal, the sample was extracted with 80 mL 0.5 M [K.sub.2]S[O.sub.4] by shaking for 30 min and filtered; MB-C was calculated according to Wu et al.
% Yield Rf Value Solvent [degrees]C (CHCl3
:MeOH) (70:30) CP-1 103-105 46 0.56 CP-2 131-134 49 0.62 CP-6 145-146 76 0.77 Compound Elemental analysis Theoretical Actual CP-1 C=54.29; C=54.28; H=5.01; H=4.96; N=18.99; N=19.42; S=14.49 S=14.11 CP-2 C=56.17; C=56.58; H=5.5; H=5.02; N=17.87; N=18.34; S=13.61 S=13.27 CP-6 C=56.69; C=56.56; H=3.81; H=3.80; N=13.22; N=13.26; S=10.07 S=10.09 Table 2: Effect of CP-1, CP-2, and CP-6 on Dexamethasone-induced hyperlipidemia in rats.