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N1-Methyl-2-pyridone-5-carboxamide (also known as 1-methyl-6-oxopyridine-3-carboxamide or nudifloramide and abbreviated as 2PY, 2-Py or NMPC) is one of a number of metabolic products of nicotinamide adenine dinucleotide (NAD) degradation.
Cornice: Generally any horizontal decorative moulding; Cove moulding or coving: Concave-profile moulding that is used at the junction of an interior wall and ceiling; Crown moulding: Wide, sprung moulding that is used at the junction of an interior wall and ceiling. General term for any moulding at the top or "crowning" an architectural element.
N 1-Methyl-4-pyridone-3-carboxamide, also abbreviated as 4PY, is a breakdown product of niacin, [1] that is associated with an increased risk of cardiovascular disease. [2] It has 2 carbonyl groups that are close to each other.
A compound crown molding built up out of several individual trim elements Decorative pilaster of natural cherry hardwood topped with crown molding Crown molding may be a complex build-up of multiple trim elements, in this case built-out slightly above a window with short 90-degree returns The relief on this short 90-degree return of crown molding was back-cut with a coping saw
A few octahedral homoleptic pyridine complexes are known. These complex cations are found in the salts [Ru(py) 6]Fe 4 (CO) 13 and [Ru(py) 6](BF 4) 2. [3] [4] Some compounds with the stoichiometry M(py) 6 (ClO 4) 2 have been reformulated as [M(py) 4 (ClO 4) 2]. (py) 2 [5] A common family of pyridine complexes are of the type [MCl 2 (py) 4] n+ ...
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A vernacular alternative is "cove", most often used where interior walls curve at the top to make a transition to the roof, or for "upside down" cavettos at the bases of elements. [ 2 ] The cavetto moulding is the opposite of the convex , bulging, ovolo , which is equally common in the tradition of Western classical architecture .
15-Crown-5 is a crown ether with the formula (C 2 H 4 O) 5. It is a cyclic pentamer of ethylene oxide that forms complex with various cations , including sodium (Na + ) [ 2 ] and potassium (K + ); [ 3 ] however, it is complementary to Na + and thus has a higher selectivity for Na + ions.