U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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Showing 4201 - 4210 of 4377 results

Status:
US Previously Marketed
Source:
Evans Blue by Parke Davis
(1951)
Source URL:
First approved in 1951
Source:
Evans Blue by Parke Davis
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)



Evans Blue (EBD) is an azo dye which has a very high affinity for serum albumin. It can be useful in physiology in estimating the proportion of body water contained in blood plasma. Evans Blue Dye is widely used to study blood vessel and cellular membrane permeability as it is non-toxic, it can be administered as an intravital dye and it binds to serum albumin – using this as its transporter molecule. The EBD–albumin conjugate (EBA) can be: (i) identified macroscopically by the striking blue colour within tissue; (ii) observed by red auto-fluorescence in tissue sections examined by fluorescence microscopy; and (iii) assessed and quantified by spectrophotometry for serum samples, or homogenised tissue. has recently been utilised in mdx mice to identify permeable skeletal myofibres that have become damaged as a result of muscular dystrophy. EBD has the potential to be a useful vital stain of myofibre permeability in other models of skeletal muscle injury and membrane-associated fragility. Evans Blue is a potent inhibitor of L-glutamate uptake into synaptic vesicles. It also inhibits AMPA and kainate receptor-mediated currents (IC50 values are 220 and 150 nM respectively). P2X-selective purinoceptor antagonist.
Pregnenolone is an endogenous steroid and precursor the biosynthesis of most of the steroid hormones, including the progestogens, androgens, estrogens, glucocorticoids, and mineralocorticoids. In addition, pregnenolone is a precursor of neurosteroid pregnenolone sulfate, which is positive modulator of NMDA receptors and negative modulator of GABAA. Pregnenolone itself is a negative allosteric modulator of cannabinoid receptors. Pregnenolone is available as a dietary supplement, and is being investigated in clinical trials agains schizophrenia, bipolar disorder, major depressive disorder, marijuana dependency and other conditions.
Pregnenolone is an endogenous steroid and precursor the biosynthesis of most of the steroid hormones, including the progestogens, androgens, estrogens, glucocorticoids, and mineralocorticoids. In addition, pregnenolone is a precursor of neurosteroid pregnenolone sulfate, which is positive modulator of NMDA receptors and negative modulator of GABAA. Pregnenolone itself is a negative allosteric modulator of cannabinoid receptors. Pregnenolone is available as a dietary supplement, and is being investigated in clinical trials agains schizophrenia, bipolar disorder, major depressive disorder, marijuana dependency and other conditions.
Status:
US Previously Marketed
Source:
Sucaryl Sodium by Abbott
(1950)
Source URL:
First approved in 1950
Source:
Sucaryl Sodium by Abbott
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)



Cyclamic acid (Cyclamate) is banned in the United States but it is used in many other Western countries without safety concerns. Cyclamate interacts with the sweet taste receptor subunit T1R3 transmembrane domain. Initially it was recommended for use in treatment of obese patients and by individuals with diabetes but in August 27, 1970 FDA concluded that there was no substantial evidence of effectiveness of cyclamate compounds at any level for treatment of obese patients and individuals with diabetes and therefore prohibited continued sale of cyclamate containing products with drug labeling. cyclamate is the putative carcinogenic agent. Cyclamate was tested in the Maximal Electroshock Seizure model (mice, ip), showing moderate anticonvulsant activity.
AMINOBENZOATE SODIUM is a salt of Aminobenzoic acid. Aminobenzoic acid is an intermediate in the synthesis of folate by bacteria, plants, and fungi. Many bacteria, including those found in the human intestinal tract such as E. coli, generate Aminobenzoic acid from chorismate by the combined action of the enzymes 4-amino-4-deoxychorismate synthase and 4-amino-4-deoxychorismate lyase. Plants produce Aminobenzoic acid in their chloroplasts, and store it as a glucose ester (pABA-Glc) in their tissues. Humans lack the enzymes to convert Aminobenzoic acid to folate, so require folate from dietary sources such as green leafy vegetables. In humans, Aminobenzoic acid is considered nonessential and, although it has been referred to historically as "vitamin Bx", is no longer recognized as a vitamin, because most people have colon bacteria that generate Aminobenzoic acid. The potassium salt is used as a drug against fibrotic skin disorders, such as Peyronie's disease, under the trade name Potaba.
AMINOBENZOATE SODIUM is a salt of Aminobenzoic acid. Aminobenzoic acid is an intermediate in the synthesis of folate by bacteria, plants, and fungi. Many bacteria, including those found in the human intestinal tract such as E. coli, generate Aminobenzoic acid from chorismate by the combined action of the enzymes 4-amino-4-deoxychorismate synthase and 4-amino-4-deoxychorismate lyase. Plants produce Aminobenzoic acid in their chloroplasts, and store it as a glucose ester (pABA-Glc) in their tissues. Humans lack the enzymes to convert Aminobenzoic acid to folate, so require folate from dietary sources such as green leafy vegetables. In humans, Aminobenzoic acid is considered nonessential and, although it has been referred to historically as "vitamin Bx", is no longer recognized as a vitamin, because most people have colon bacteria that generate Aminobenzoic acid. The potassium salt is used as a drug against fibrotic skin disorders, such as Peyronie's disease, under the trade name Potaba.
AMINOBENZOATE SODIUM is a salt of Aminobenzoic acid. Aminobenzoic acid is an intermediate in the synthesis of folate by bacteria, plants, and fungi. Many bacteria, including those found in the human intestinal tract such as E. coli, generate Aminobenzoic acid from chorismate by the combined action of the enzymes 4-amino-4-deoxychorismate synthase and 4-amino-4-deoxychorismate lyase. Plants produce Aminobenzoic acid in their chloroplasts, and store it as a glucose ester (pABA-Glc) in their tissues. Humans lack the enzymes to convert Aminobenzoic acid to folate, so require folate from dietary sources such as green leafy vegetables. In humans, Aminobenzoic acid is considered nonessential and, although it has been referred to historically as "vitamin Bx", is no longer recognized as a vitamin, because most people have colon bacteria that generate Aminobenzoic acid. The potassium salt is used as a drug against fibrotic skin disorders, such as Peyronie's disease, under the trade name Potaba.
Scopolamine Aminoxide Hydrobromide is one of Scopolamine metabolites, with remarkable Acetylcholinesterase inhibitory activity.
Potassium Glycyrrhetinate (CAS no. 85985-61-1) is the potassium salt of Glycyrrhetinic Acid. Potassium Glycyrrhetinate is also known as Olean-12-En-29-Oic Acid, 3-Hydroxy-1, 1-Oxo-, Monopotassium Salt. Potassium Glycyrrhetinate functions as a flavoring agent and skin-conditioning agent—miscellaneous in cosmetic products.
Status:
US Previously Marketed
Source:
Hydrochloric Acid U.S.P.
(1921)
Source URL:
First marketed in 1921
Source:
Hydrochloric Acid U.S.P.
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)


HYDROCHLORIC ACID is formed by dissolving hydrogen chloride gas in water. It is a strong corrosive acid that is commonly used as a laboratory reagent. Also, it constitutes the majority of gastric acid, the human digestive fluid. Skin contact with HYDROCHLORIC ACID can cause redness, pain, and severe skin burns. It may cause severe burns to the eye and permanent eye damage.

Showing 4201 - 4210 of 4377 results