It is odorless, and has a slightly bitter taste. The British Pharmacopoeia lists it as being very slightly soluble in water, soluble in alcohol, and freely soluble in chloroform. The United States Pharmacopoeia lists diazepam as soluble 1 in 16 ethyl alcohol, 1 in 2 of chloroform, 1 in 39 ether, and practically insoluble in water. The pH of diazepam is neutral (i.e., pH = 7). Due to additives such as benzoic acid/benzoate in the injectable form. (Plumbs, 6th edition page 372) Diazepam has a shelf life of five years for oral tablets and three years for IV/IM solutions. Diazepam should be stored at room temperature (15–30 °C). The solution for parenteral injection should be protected from light and kept from freezing. The oral forms should be stored in air-tight containers and protected from light.Diazepam can absorb into plastics, so liquid preparations should not be kept in plastic bottles or syringes, etc. As such, it can leach into the plastic bags and tubing used for intravenous infusions. Absorption appears to depend on several factors, such as temperature, concentration, flow rates, and tube length. Diazepam should not be administered if a precipitate has formed and does not dissolve. Detection in body fluids
Diazepam may be quantified in blood or plasma to confirm a diagnosis of poisoning in hospitalized patients, provide evidence in an impaired driving arrest, or to assist in a medicolegal death investigation. Blood or plasma diazepam concentrations are usually in a range of 0.1–1.0 mg/L in persons receiving the drug therapeutically.
Shake may refer to:

Handshake
Milkshake
Tremor
Shakes (wood), cracks in timber
Shake (shingle), a wooden shingle made from split logsShake, The Shakes, Shaking, or Shakin may refer to:

Geography
Shake, Zimbabwe
Shake, another name for Sake language, used in parts of Gabon

People
Shakin Stevens, Welsh rock and roll singer
Anthony "Shake" Shakir, Detroit techno producer
Master Shake, a character in Aqua Teen Hunger Force
Shake (singer) (Sheikh Abdullah Ahmad), Malaysian singer
Shaking, a stage name of Xie Keyin, Chinese singer, rapper and songwriter
Malik "Shake" Milton, American basketball player

Music
Shake (music) (more commonly known as a trill), a musical ornament
The Shake (dance), a fad dance of the 1960s
The Shake (American rock band)

Albums
Shake (The Thing album) (2015)
Shake (John Schlitt album) (1995)
Shake! (album) (1968), by the Siegel–Schwall Band
Shake (2001), by Zucchero Fornaciari
Shakin (album), 1986 work by country music group Sawyer Brown
The Shake (Laurie Johnson), an LP by Laurie Johnson, the base of what is now known as "The Avengers Theme"

Songs
"Shake" (Sam Cooke song) (1964), notably covered by Otis Redding
"Shake!"