The asymmetric unit of the title compound, 2C10H11N2(+)·2C3H3O4(-)·C3H4O4, consists of one 5-amino-6-methyl-quinolin-1-ium cation, one hydrogen malonate (2-carb-oxy-acetate) anion and one-half mol-ecule of malonic acid which lies on a twofold rotation axis. The quinoline ring system is essentially planar, with a maximum deviation of 0.062 (2) Å for all non-H atoms. In the anion, an intra-molecu...

In the asymmetric unit of the title salt, C(3)H(9)S(+)·CH(2)B(11)FI(10)N(-) or (CH(3))(3)S[1-H(2)N-6-F-closo-1-CB(11)I(10)], both ions lie in general positions. The anion is perfectly ordered and so the positions of the C-NH(2) vertex and the fluorine substituent are clearly assigned. The relatively short C-N bond length may be inter-preted in terms of a very electron deficient {closo-1-CB(11)}...

Isoelectric solubilization /precipitation (ISP) process was used to isolate protein from muscles of Prussian carp, Carassius gibelio (Bloch, 1782). Fish protein and lipid were recovered from whole gutted Prussian carp using acidic and basic isoelectric solubilization/precipitation followed by assaying amino acid and fatty acid profile. Essential amino acids content in acidic and basic pH treatm...

Abstract A series of new quinazoline-4(3H)-one derivatives (2-16) have been synthesized using methyl α-[(4-oxoquinazolin-2-yl)thio]acetate (1) as precursor. The corresponding hydrazide (2) and thiosemicarbazide (4) were from this ester via the reaction with hydrazine hydrate ammonium thiocyanate respectively. was employed to synthesize 2-amino-1,3,4-thiadiazole (5) 1,3,4-triazole-5-thiol (6) it...