3-Hydroxytyramine
- Product Name
- 3-Hydroxytyramine
- CAS No.
- 51-61-6
- Chemical Name
- 3-Hydroxytyramine
- Synonyms
- Dopamine;opamine;Dopamine Control;4-(2-Aminoethyl);3-Hydroxytyramine;51-61-6 3-Hydroxytyramine;3,4-Dihydroxyphenethylamine;Noradrenaline EP Impurity C;3-Hydroxytyramine USP/EP/BP;β-Hydroxytyramine (Dopamine)
- CBNumber
- CB72130502
- Molecular Formula
- C8H11NO2
- Formula Weight
- 153.18
- MOL File
- 51-61-6.mol
3-Hydroxytyramine Property
- Melting point:
- 218-220 ºC
- Boiling point:
- 276.1°C (rough estimate)
- Density
- 1.1577 (rough estimate)
- refractive index
- 1.4770 (estimate)
- storage temp.
- Hygroscopic, -20°C Freezer, Under inert atmosphere
- solubility
- Aqueous Acid (Slightly), DMSO (Slightly, Heated), Methanol (Slightly)
- pka
- 8.9(at 25℃)
- form
- Solid
- color
- Light Brown to Brown
- Stability:
- Hygroscopic
- NIST Chemistry Reference
- Dopamine(51-61-6)
- EPA Substance Registry System
- Dopamine (51-61-6)
Safety
- Hazardous Substances Data
- 51-61-6(Hazardous Substances Data)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H361Suspected of damaging fertility or the unborn child
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
- Precautionary statements
-
P201Obtain special instructions before use.
P202Do not handle until all safety precautions have been read and understood.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P273Avoid release to the environment.
P281Use personal protective equipment as required.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P308+P313IF exposed or concerned: Get medical advice/attention.
P330Rinse mouth.
P391Collect spillage. Hazardous to the aquatic environment
P405Store locked up.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- A595590
- Product name
- Dopamine
- Packaging
- 10mg
- Price
- $50
- Updated
- 2021/12/16
- Product number
- D9000-02
- Product name
- Dopamine
- Packaging
- 1mg
- Price
- $706
- Updated
- 2021/12/16
- Product number
- 517170
- Product name
- Dopamine
- Packaging
- 96Tests
- Price
- $1318
- Updated
- 2021/12/16
- Product number
- API0002478
- Product name
- DOPAMINE
- Purity
- 95.00%
- Packaging
- 1G
- Price
- $302.4
- Updated
- 2021/12/16
3-Hydroxytyramine Chemical Properties,Usage,Production
Description
Dopamine, abbreviated DA, is a biosynthetic compound and neurotransmitter produced in the body from the amino acid tyrosine by several pathways. It is synthesized in the adrenal gland where it is a precursor to other hormones (see Epinephrine) and in several portions of the brain, principally the substantia nigra and hypothalamus.
Originator
Dopmin,Orion Corporation,Finland
History
Dopamine is stored in vesicles in the brain’s presynaptic nerve terminals. It is closely associated with its immediate precursor, l-Dopa (levodopa). Casmir Funk (1884–1967) first synthesized Dopa in racemic form in 1911 and considered Dopa a vitamin. In 1913, Marcus Guggenheim, a biochemist from Hoff man-LaRoche, isolated l-Dopa from seedlings of Vicia faba, the Windsor bean plant native to northern Africa and southwest Asia. Guggenheim used beans from the garden of Felix Hoff man (1868–1946), the discoverer of aspirin. Guggenheim ingested a 2.5-gram dose of l-Dopa, resulting in nausea and vomiting; he also administered small dosages to animals and did not observe any signifi cant effects. This led him to believe that l-Dopa was biologically inactive. Studies commencing in 1927 reported that Dopa played a role in glucose metabolism and aff ected arterial blood pressure. Interest in dopamine accelerated in 1938 when the German physician and pharmacologist Peter Holtz (1902–1970) and co-workers discovered the enzyme l-Dopa decarboxylase and that it converted l-Dopa into dopamine in humans and animals. Research over the next two decades focused on l-Dopa’s role as a precursor to other catecholamine hormones, its vascular effects, and its role in brain chemistry.
Uses
Adrenergic.
Uses
Dopamine exhibits its primary action of the cardiovascular system, kidneys, and mesentery. It is used as a temporary agent for treating hypotension and circulatory shock caused by myocardial stroke, trauma, kidney rejection, and endogenous septicemia. The main indication for use of this drug is shock of various origins (cardiogenic, postoperational, infectious-toxic, anaphylactic), severe hypotension, and imminent renal insufficiency.
Uses
Dopamine(3-Hydroxytyramine) is used as a drug to treat several conditions. It can be injected as a solution ofdopamine hydrochloride, such as in the drug Intropin. It is used as a stimulant to the heartmuscle to treat heart conditions; it also constricts the blood vessels, increasing systolic bloodpressure and improving blood flow through the body. Dopamine is used in renal medicationsto improve kidney function and urination. Dopamine dilates blood vessels in the kidneys,increasing the blood supply and promoting the fl ushing of wastes from the body. Dopamineis used to treat psychological disorders such as schizophrenia and paranoia.
Definition
dopamine: A catecholamine thatis a precursor in the synthesis of noradrenalineand adrenaline. It alsofunctions as a neurotransmitter inthe brain.
Manufacturing Process
To 5 g of 3,4-dimethoxyphenylethyl amine HCl was added 20 ml of concentrated HCl. The mixture was heated at 150°C for 2 hours. Then it wascooled to ambient temperature and decolored with a charcoal, filtered and deluted with ethanol. The resulting crystals was isolated and re-crystallized from acetone. The melting point of 3,4-dihydroxyphenylethylamine hydrochloride is 174°-175°C. The free base may be prepared from this product by adding of equivalent of NaOH or any other alkali.
brand name
Intropin (Mayne).
Therapeutic Function
Cardiotonic
Biological Functions
Quantitatively, dopamine is the most important of the
biogenic amine neurotransmitters in the CNS.The three
major distinct dopaminergic systems in the mammalian
brain are categorized according to the lengths of the
neurons. There is a system comprising ultrashort neurons
within amacrine cells of the retina and periglomerular
cells in the olfactory bulb. Of the several
intermediate-length dopaminergic neuronal systems, the
best studied are neurons in the tuberobasal ventral hypothalamus
that innervate the median eminence and the
intermediate lobe of the pituitary. These neurons are
important in the regulation of various hypothalamohypophysial
functions, including prolactin release from the
anterior pituitary.The best-categorized of the dopamine
neuronal systems are the long projections from nuclei in
the substantia nigra and ventral tegmental areas to the
limbic cortex; other limbic structures, including the
amygdaloid complex and piriform cortex; and the neostriatum
(primarily the caudate and putamen). In
Parkinson’s disease, the primary biochemical feature is a
marked reduction in the concentration of dopamine in
this long projection system.
Several classes of drugs, notably the antipsychotics,
discussed in Chapter 34, interfere with dopaminergic
transmission. In general, dopamine appears to be an inhibitory
neurotransmitter. Five dopamine receptors
have been identified; the most important and best studied
are the D1- and D2-receptor groups.The D1-receptor,
which increases cyclic adenosine monophosphate
(cAMP) by activation of adenylyl cyclase, is located primarily
in the region of the putamen, nucleus accumbens,
and in the olfactory tubercle. The D2-receptor decreases
cAMP, blocks certain calcium channels, and
opens certain potassium channels.
General Description
Dopamine (Intropin) acts primarily on 1-and 1-adrenergic receptors, increasing systemic vascularresistance and exerting a positive inotropic effect on theheart. It must be administered by an intravenous route, becauseoral administration results in rapid metabolism byMAO and/or catechol-O-methyltransferase (COMT).
Mechanism of action
Dopamine is found in every sympathetic neuron and ganglion in the CNS. As a drug, and in addition to stimulation of dopaminergic receptors, dopamine indirectly stimulates both α- and β-adrenoreceptors. Dopamine also causes a release of endogenous norepinephrine. The mechanism of action is based on the excitatory effect on β-adrenoreceptors (in low and moderate doses), as well as on α-adrenoreceptors (in large doses). It has a positive inotropic effect on the heart, increases blood supply, selectively widens renal and mesenteric blood vessels, does not elevate blood pressure, and slightly increases the frequency of heartbeats.
Clinical Use
Although not strictly an adrenergic drug, dopamine is a catecholamine with properties related to the cardiovascular activities of the other agents in this chapter. Dopamine acts on specific dopamine receptors to dilate renal vessels, increasing renal blood flow. Dopamine also stimulates cardiac β1-receptors through both direct and indirect mechanisms. It is used to correct hemodynamic imbalances induced by conditions such as shock, myocardial infarction, trauma, or congestive heart failure. As a catechol and primary amine, dopamine is rapidly metabolized by COMT and MAO and, similar to dobutamine, has a short duration of action with no oral activity. It is administered as an intravenous infusion.
Synthesis
As a medicinal agent, dopamine, 2-(3,4-dihydroxyphenyl)-ethylamine (11.3.1), is synthesized by demethylation of 2-(3,4-dimethoxyphenyl)ethylamine (19.4.3) using hydrogen bromide [49¨C51].
Environmental Fate
Dopamine quinones may irreversibly alter protein function through the formation of 5-cysteinyl-catechols on the proteins. The formation of dopamine quinone-alpha-synuclein consequently increases cytotoxic protofibrils and the covalent modification of tyrosine hydroxylase by dopamine quinones. The melaninsynthetic enzyme tyrosinase in the brain may rapidly oxidize excess amounts of cytosolic dopamine and prevent slowly progressive cell damage by auto-oxidation of dopamine, thus maintaining dopamine levels.
Toxicity evaluation
High concentrations of dopamine present inside of a cell than there are vesicles to store it in, oxidative stress can occur and cause damage or death to the cell. It is thought that dopamine overload causes biochemical damage to cellular mitochondria, that provide the cell with all of the energy it requires to function, resulting in death of the cell. Catecholamines produced circulatory changes that reversed propofol anesthesia in animal models.
3-Hydroxytyramine Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 3-Hydroxytyramine manufacturers
- Product
- Dopamine 51-61-6
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 10000kg
- Release date
- 2024-04-29
- Product
- Dopamine 51-61-6
- Price
- US $0.00/mg
- Min. Order
- 10mg
- Purity
- 0.98
- Supply Ability
- 10g
- Release date
- 2024-04-01
- Product
- 3-Hydroxytyramine 51-61-6
- Price
- US $1.00-1.00/KG
- Min. Order
- 1g
- Purity
- 99%
- Supply Ability
- 50tons
- Release date
- 2020-05-11