Warning: The NCBI web site requires JavaScript to function. more...
An official website of the United States government
The .gov means it's official. Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.
The site is secure. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.
2-Hydroxy-5-nitrobenzyl Bromide
A chemical reagent that reacts with and modifies chemically the tryptophan portion of protein molecules. Used for 'active site' enzyme studies and other protein studies. Sometimes referred to as Koshland's reagent.
Year introduced: 1991(1975)
Tiotropium Bromide
A scopolamine derivative and CHOLINERGIC ANTAGONIST that functions as a BRONCHODILATOR AGENT. It is used in the treatment of CHRONIC OBSTRUCTIVE PULMONARY DISEASE.
Year introduced: 2016 (1993)
beta-Aminoethyl Isothiourea
A radiation-protective agent that can inhibit DNA damage by binding to the DNA. It also increases the susceptibility of blood cells to complement-mediated lysis.
Year introduced: 2001(1967)
pralidoxime [Supplementary Concept]
RN given refers to parent cpd; chloride was minor descriptor (75-80); on-line & Index Medicus search PRALIDOXIME COMPOUNDS (66-80)
Date introduced: January 1, 1974
thiazolyl blue [Supplementary Concept]
RN & II refers to bromide
Date introduced: January 1, 1980
sepantronium [Supplementary Concept]
a survivin suppressant with antineoplastic activity
Date introduced: October 25, 2007
dodecyltrimethylammonium [Supplementary Concept]
used to determine thermal stability of DNA; RN given refers to parent cpd
Date introduced: January 1, 1969
1-(benzofuran-2-yl(phenyl)methyl)-3-(2-(naphthalen-2-yl)-2-oxoethyl)-1H-benzo(d)imidazol-3-ium [Supplementary Concept]
structure in first source
Date introduced: October 1, 2013
2-(5-fluoro-2-methoxy-1,4-benzodioxan-2-yl)imidazolinium bromide [Supplementary Concept]
Date introduced: August 2, 2001
N1,N1,N12,N12-tetraethyl-N1,N12-bis(2-((1,7,7-trimethylbicyclo(2.2.1)heptan-2-ylidene)amino)ethyl)dodecane-1,12-diaminium [Supplementary Concept]
has antineoplastic activity; structure in first source
Date introduced: May 20, 2014
Ipratropium
A muscarinic antagonist structurally related to ATROPINE but often considered safer and more effective for inhalation use. It is used for various bronchial disorders, in rhinitis, and as an antiarrhythmic.
Year introduced: 1993
bencycloquidium bromide [Supplementary Concept]
Date introduced: March 29, 2007
proglycosyn [Supplementary Concept]
structure given in first source; proglycosyn is short for "promotes glycogen synthesis"
Date introduced: October 10, 1989
poly-N-methyl-2-vinylpyridinium bromide [Supplementary Concept]
RN given refers to bromide
Date introduced: January 1, 1978
Rocuronium
An androstanol non-depolarizing neuromuscular blocking agent. It has a mono-quaternary structure and is a weaker nicotinic antagonist than PANCURONIUM.
Year introduced: 2019 (1989)
1-(benzofuran-2-yl(phenyl)methyl)-3-(2-(4-methoxyphenyl)-2-oxoethyl)-1H-benzo(d)imidazol-3-ium [Supplementary Concept]
pseudoisocyanine [Supplementary Concept]
metachromatic quinoline tissue stain; may polymerize to yield different colors; also used in fluorescence cytochemistry may bind to DNA; minor descriptor (79-86); on-line & INDEX MEDICUS search QUINOLINES (79-86); RN given refers to parent cpd
Date introduced: July 28, 1986
bis(1,2-bis(diphenylphosphino)ethane)gold(I) [Supplementary Concept]
RN given for parent cpd; structure given in first source
Date introduced: November 18, 1986
2-toluenediazonium [Supplementary Concept]
RN given refers to sulfate[2:1]; structure
Date introduced: January 1, 1976
3-(2-(4-ethylphenyl)-2-oxoethyl)-1,2-dimethyl-1H-3,1-benzimidazol-3-ium [Supplementary Concept]
has cardioprotective activity
Date introduced: April 14, 2016