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Uses. 4-Amino-2-methyl-1-naphthol HCl salt is a vitamin K and prevents bleeding caused by vitamin K deficiency when given via intravenous or intramuscular injections at doses of about 1–3 mg. HCl salt is water-soluble and its parenteral administration requires no emulsifiers [6] [7] unlike fat-soluble phylloquinone for example, which is often ...
In November 2017, Ray J co-founded a direct-to-consumer electronics brand called Raycon. Raycon sells wireless audio products such as earbuds and headphones. [34] Ray J oversees brand and strategy. [35]
2-4-0+0-4-2. Under the Whyte notation for the classification of steam locomotives by wheel arrangement, 2-4-0+0-4-2 is an articulated locomotive, usually of the Garratt type. The wheel arrangement is effectively two 2-4-0 locomotives operating back to back, with the boiler and cab suspended between the two power units.
1,8-Diazafluoren-9-one ( DFO) is an aromatic ketone first synthesized in 1950. It is used to find fingerprints on porous surfaces. [1] [2] It makes fingerprints glow when they are lit by blue-green light. [2] DFO reacts with amino acids present in the fingerprint to form highly fluorescent derivatives.
2-4-2. Under the Whyte notation for the classification of steam locomotives, 2-4-2 represents the wheel arrangement of two leading wheels on one axle, four powered and coupled driving wheels on two axles and two trailing wheels on one axle. The type is sometimes named Columbia after a Baldwin 2-4-2 locomotive was showcased at the 1893 World's ...
The South African Railways Class GMA 4-8-2+2-8-4 of 1954 is an articulated steam locomotive. Between 1954 and 1958, the South African Railways placed 120 Class GMA Garratt articulated steam locomotives with a 4-8-2+2-8-4 Double Mountain type wheel arrangement in service. All the locomotives could be configured as either a Class GMA branch line ...
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2-Methylnaphthalene-1,4-diamine is a synthetic menadione analog with vitamin K activity. [3] [2] 2-Methylnaphthalene-1,4-diamine was first synthesized in 1925. [1] [3] In 1942 two different research groups noted the vitamin K activity of the compound. [3] [4] [5] It forms a dihydrochloride salt (C 11 H 14 Cl 2 N 2) with hydrochloric acid and ...