Search results
Results from the Health.Zone Content Network
2,4-Dinitrophenylhydrazine ( 2,4-DNPH or DNPH) is the organic compound C 6 H 3 (NO 2) 2 NHNH 2. DNPH is a red to orange solid. It is a substituted hydrazine. The solid is relatively sensitive to shock and friction. For this reason DNPH is usually handled as a wet powder. DNPH is a precursor to the drug Sivifene .
Infobox references. 2,4-Xylidine is an organic compound with the formula C 6 H 3 (CH 3) 2 NH 2. It is one of several isomeric xylidines. It is a colorless viscous liquid. Commercially significant derivatives include the veterinary drug cymiazole and the colorant Pigment Yellow 81. [1] Genotoxic and teratogenic, 2,4‑xylidine is an industrial ...
Infobox references. N-Isopropyl-N′-phenyl-1,4-phenylenediamine (often abbreviated IPPD) is an organic compound commonly used as an antiozonant in rubbers. [1] Like other p-phenylenediamine -based antiozonants it works by virtue of its low ionization energy, which allows it to react with ozone faster than ozone will react with rubber. [2]
Diazinane. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Diazinanes or hexahydrodiazines are a class of nitrogen-containing heterocycles consisting of a saturated four-carbon, two-nitrogen ring. They exist in three isomeric forms depending on the relative position of the two ...
The Basel problem is a problem in mathematical analysis with relevance to number theory, concerning an infinite sum of inverse squares. It was first posed by Pietro Mengoli in 1650 and solved by Leonhard Euler in 1734, [1] and read on 5 December 1735 in The Saint Petersburg Academy of Sciences. [2]
N-Methyl-2-pyrrolidone is an agent that causes the production of physical defects in the developing embryo. [7] It also is a reproductive toxin, a chemical that is toxic to the reproductive system, including defects in the progeny and injury to male or female reproductive function. Reproductive toxicity includes developmental effects. [7]
N. +1 redundancy. Redundancy is a form of resilience that ensures system availability in the event of component failure. Components ( N) have at least one independent backup component (+1). The level of resilience is referred to as active/passive or standby as backup components do not actively participate within the system during normal operation.
U.S. Route 2 or U.S. Highway 2 ( US 2) is an east–west United States Numbered Highway spanning 2,571 miles (4,138 km) across the northern continental United States. US 2 consists of two segments connected by various roadways in southern Canada. Unlike some routes, which are disconnected into segments because of encroaching Interstate Highways ...