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Alfred Stieglitz, c. 1894, collodion print by Frank S. Herrmann Collodion is a flammable, syrupy solution of nitrocellulose in ether and alcohol.There are two basic types: flexible and non-flexible.
Nitrophenyl pentadienal, nitrophenylpentadienal, NPPD, or METKA (Russian for "mark") colloquially known as "spy dust", [1] is a chemical compound used as a tagging agent by the KGB during the Cold War Soviet Era. Soviet authorities in Moscow tracked
Hexamethyltungsten is the chemical compound W(CH 3) 6 also written WMe 6.Classified as a transition metal alkyl complex, hexamethyltungsten is an air-sensitive, red, crystalline solid at room temperature; however, it is extremely volatile and sublimes at −30 °C.
Tungsten hexacarbonyl (also called tungsten carbonyl) is an organometallic compound with the formula W(CO) 6. This complex gave rise to the first example of a dihydrogen complex. [2] Like its chromium and molybdenum analogs, this colorless compound is noteworthy as a volatile, air-stable derivative of tungsten in its zero oxidation state.
An MDL Molfile is a file format for holding information about the atoms, bonds, connectivity and coordinates of a molecule.. The molfile consists of some header information, the Connection Table (CT) containing atom info, then bond connections and types, followed by sections for more complex information.
Hydrogen atoms attached to atoms other than carbon must be written explicitly. An additional feature of skeletal formulas is that by adding certain structures the stereochemistry, that is the three-dimensional structure, of the compound can be determined. Often times, the skeletal formula can indicate stereochemistry through the use of wedges ...
Here are 10 powerful compound exercises to melt love handles and promote over For my clients who are struggling with extra fat around the back and hips, I recommend adding compound exercises to ...
SMILES generation algorithm for ciprofloxacin: break cycles, then write as branches off a main backbone. The Simplified Molecular Input Line Entry System (SMILES) is a specification in the form of a line notation for describing the structure of chemical species using short ASCII strings.