FENOTEROL HYDROBROMIDE
in vivo- Product Name
- FENOTEROL HYDROBROMIDE
- CAS No.
- 1944-12-3
- Chemical Name
- FENOTEROL HYDROBROMIDE
- Synonyms
- Airum;Emitex;Ugacor;berotec;th1165a;Siobetec;Dosberotec;partusisten;FENOTEROL HBR;fenoterolbromide
- CBNumber
- CB0210728
- Molecular Formula
- C17H21NO4.BrH
- Formula Weight
- 384.27
- MOL File
- 1944-12-3.mol
FENOTEROL HYDROBROMIDE Property
- Melting point:
- 226-228°C
- storage temp.
- 2-8°C
- solubility
- Soluble in water and in ethanol (96 per cent).
- form
- Solid
- color
- White to Off-White
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- F1016
- Product name
- Fenoterol hydrobromide
- Packaging
- 1g
- Price
- $221
- Updated
- 2024/03/01
- Product number
- F0050000
- Product name
- Fenoterol hydrobromide
- Purity
- European Pharmacopoeia (EP) Reference Standard
- Packaging
- f0050000
- Price
- $150
- Updated
- 2024/03/01
- Product number
- 21293
- Product name
- Fenoterol (hydrobromide)
- Purity
- ≥98%
- Packaging
- 10mg
- Price
- $44
- Updated
- 2024/03/01
- Product number
- 21293
- Product name
- Fenoterol (hydrobromide)
- Purity
- ≥98%
- Packaging
- 25mg
- Price
- $63
- Updated
- 2024/03/01
- Product number
- 21293
- Product name
- Fenoterol (hydrobromide)
- Purity
- ≥98%
- Packaging
- 50mg
- Price
- $106
- Updated
- 2024/03/01
FENOTEROL HYDROBROMIDE Chemical Properties,Usage,Production
in vivo
Fenoterol (0.7 mg/kg; intraperitoneal injection; twice a day; for 3 weeks) treatment suppresses mechanical allodynia during chronic treatment.
Chemical Properties
White Solid
Originator
Berotec,Boehringer Ingelheim,W. Germany,1972
Uses
An β2-adrenergic agonist. Bronchodilator; tocolytic.
Definition
ChEBI: The hydrobromide salt of fenoterol. A beta2-adrenergic agonist, it is used as a bronchodilator in the management of reversible airway obstruction.
Manufacturing Process
441 grams (1.4 mols) of 3,5-diacetoxy-α-bromo-acetophenone (MP 66°C),
prepared by bromination of 3,5-diacetoxy-acetophenone, were added to a
solution of 714 grams (2.8 mols) of 1-p-methoxyphenyl-2-benzylaminopropane
in 1,000 cc of benzene, and the resulting solution mixture was
refluxed for 1 hour. The molar excess of 1-p-methoxy-phenyl-2-benzylaminopropane
precipitated out as its hydrobromide. After separation of the
precipitated hydrobromide of the amino component, the hydrochloride of 1-pmethoxy-
phenyl-2-(β-3',5'-diacetoxyphenyl-β-oxo)-ethyl-benzylamino-propane
was precipitated from the reaction solution by addition of an ethanolic solution
of hydrochloric acid. The precipitate was separated and, without further
purification, was deacetylated by boiling it in a mixture of 2 liters of aqueous
10% hydrochloric acid and 1.5 liters of methanol.
The resulting solution was filtered through animal charcoal and, after addition
of 2 liters of methanol, it was debenzylated by hydrogenation at 60°C over
palladinized charcoal as a catalyst. After removal of the catalyst by filtration,
the filtrate was concentrated by evaporation, whereupon the hydrochloride of
1-p-methoxyphenyl-2-(β-3',5'-dihydroxyphenyl-β-oxo)-ethylamino-propane
(MP 244°C) crystallized out. For the purpose of demethylation, the 350 grams
of the hydrochloride thus produced were refluxed for 2 hours with 3.5 liters of
aqueous 48% hydrobromic acid. Upon cooling of the reaction solution, 320
grams of 1-p-hydroxyphenyl-2-(β-3',5'-dihydroxyphenyl-β-oxo)-ethylaminopropanehydrobromide
(MP 220°C) crystallized out.
·220 grams of 1-p-hydroxyphenyl-2-(β-3',5'-dihydroxyphenyl-β-oxo)-
ethylamino-propane hydrobromide were dissolved in 1 liter of methanol, the
resulting solution was boiled with activated charcoal, the charcoal was filtered
off and the filtrate was hydrogenated in the presence of Raney nickel at 60°C
and 5 atmospheres gauge. Thereafter, the catalyst was filtered off, the
methanolic solution was admixed with a small amount of concentrated
hydrobromic acid, and the mixture was evaporated to dryness in vacuo. The
residue was stirred with acetone, the mixture was vacuum filtered and the
filter cake was recrystallized from a mixture of methanol and ether. The 1-phydroxyphenyl-
2-(β-3',5'-dihydroxyphenyl-β-hydroxy)-ethylamino-propane
hydrobromide thus obtained had a melting point of 222° to 223°C.
Therapeutic Function
Bronchodilator
Clinical Use
Fenoterol is an investigational drug in the United States that has been in use in Europe since 1970. It is the p-hydroxyphenyl derivative of metaproteronol, and the combination of the resorcinol ring and the bulky p-hydroxyphenyl isopropyl group on the nitrogen gives fenoterol significant β2-receptor selectivity. It has approximately half the affinity for the β2-receptor as compared to albuterol. The resorcinol ring is resistant to COMT metabolism, and the bulky nitrogen substituent greatly retards MOA metabolism as well giving fenoterol a reasonable oral bioavailability with pharmacokinetics similar to albuterol (i.e., rapid onset and a 4- to 6-hour duration of action after oral inhalation).
FENOTEROL HYDROBROMIDE Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from FENOTEROL HYDROBROMIDE manufacturers
- Product
- FENOTEROL HYDROBROMIDE 1944-12-3
- Price
- US $1.10/g
- Min. Order
- 1g
- Purity
- 99.9%
- Supply Ability
- 100 Tons Min
- Release date
- 2021-05-28
- Product
- FENOTEROL HYDROBROMIDE 1944-12-3
- Price
- US $2.00/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 1kg, 5kg ,50kg
- Release date
- 2020-01-08