THE DIHEDRAL ANGLE BETWEEN THE PLANES OF TWO AROMATIC RINGS IN THE TITLE COMPOUND [SYSTEMATIC NAME: 3-benzoyl-5-chloro-pyrimidine-2,4(1H,3H)-dione], C(11)H(7)ClN(2)O(3), is 86.79 (6)°. Centrosymmetric dimers formed by N-H⋯O hydrogen bonds are linked through C-H⋯O inter-actions, forming a two-dimensional network parallel to (10).

In the title compound, C(14)H(13)NO(3)S, the N-H bond in is anti to the C=O bond. The dihedral angle between the two aromatic rings is 79.4 (1)°. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds, generating C(4) chains.

A simple, sensitive, spectrophotometric method in UV region has been developed for the simultaneous estimation of benzoyl peroxide and tretinoin in bulk and semi solid dosage form (cream). Standard solution of benzoyl peroxide shows maximum absorbance at 234.8 nm and tretinoin shows maximum absorbance at 348.6 nm. Beer’s Lamberts law is obeyed in concentration range 1-9 μg/ml for tretinoin with...

In the title gem-dinitro-azetidine derivative, C(10)H(9)N(3)O(5), the azetidine ring is almost planar, the maximum value of the endocyclic torsion angle being 0.92 (14)°. The gem-dinitro groups are mutually perpendicular and the dihedral angle between the azetidine and benzene rings is 46.70 (10)°

In the course of glycine conjugation, benzoic acid is successively converted into benzoyl-CoA and benzoylglycine by mitochondrial enzymes (i.e. benzoyl-CoA synthetase and benzoyl-CoA/glycine N-acyltransferase, respectively), utilizing ATP, CoA, and glycine. Large doses of benzoate deplete CoA from the liver, suggesting that the supply of CoA may limit the capacity for glycine conjugation. Becau...

In the title compound, C(13)H(10)N(2)O(5)S, the dihedral angle between the phenyl and benzene rings is 86.7 (1)°. In the crystal, mol-ecules are linked into zigzag C(4) chains running along the b axis via N-H⋯O hydrogen bonds.

Two independent thio-urea mol-ecules comprise the asymmetric unit of the title compound, C(22)H(20)N(2)OS. The central N-C(=S)N(H)C(=O) atoms in each mol-ecule are virtually superimposable and each is twisted [C-N-C-S torsion angles = 121.3 (3) and -62.3 (4)°]. The mol-ecules differ only in terms of the relative orientations of the benzyl benzene rings [major difference between the C-N-C-C tors...

In the title compound, C(13)H(10)N(2)O(5)S, the N-C bond in the C-SO(2)-NH-C segment has gauche torsion angles with respect to the S=O bonds. The conformation between the N-H bond and the ortho-nitro group in the sulfonyl benzene ring is syn. The mol-ecule is twisted at the S-N bond with a torsion angle of -63.4 (2)°. The sulfonyl benzene ring is tilted by 77.1 (1)° relative to the -SO(2)-NH-C-...

The asymmetric unit of the title compound, C(13)H(10)ClNO(3)S, contains two independent mol-ecules. The mol-ecules have C-S-N-C torsion angles of -70.0 (2) and 61.3 (2)° for mol-ecules 1 and 2, respectively. The dihedral angles between the sulfonyl benzene rings and the -SO(2)-NH-C-O segments are 72.0 (1) and 77.3 (1)° for mol-ecules 1 and 2, respectively, and the dihedral angles between the su...

Papaya (Carica papaya L.) pulp tissue disks in an incubation medium composed of 0.4 m sucrose evolve ethylene at an optimum pH of 5.25 at 30 C. Disks of young preclimacteric fruit evolve the gas linearly with fruit age until fruit age reaches 4 months. Disks from 5-month-old postclimacteric fruit produce approximately 5-fold more ethylene than disks from 4-month-old fruit. Ethylene evolution by...