Formoterol Related Compounds & Impurities

Formoterol is a long-acting beta-2 adrenergic agonist bronchodilator used as maintenance therapy for asthma and COPD, frequently combined with inhaled corticosteroids.

Simson Pharma Limited along with its subsidiary offices Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) is a trusted manufacturer and supplier of high-quality pharmaceutical reference standards, offering a comprehensive portfolio of Formoterol reference standards, pharmacopeial and non-pharmacopeial Formoterol impurities, related compounds, related substances, metabolites, stable isotope-labelled compounds, deuterium labelled compounds and nitrosamine (N-NO) reference standards.

These materials support pharmaceutical research and development, product development, ANDA and DMF submissions, quality control (QC), analytical method development and validation, stability studies, impurity identification, and genotoxic impurity assessment.

Our Formoterol-related reference standards are thoroughly characterized using advanced analytical techniques and are supplied with comprehensive Certificates of Analysis (COA) and supporting analytical data from our USFDA certified, ISO 17025 and ISO 17034 accredited Lab, to meet global regulatory expectations. EP and USP traceable reference standards can also be provided upon request, subject to availability. Simson is also a provider of EP and USP traceable standards. To ensure consistent quality and reliability, our reference standards are periodically re-tested according to established quality management procedures.

Pharmaceutical Reference Standards / Impurity Standards

Formoterol Impurity 19
Formoterol Impurity 19
  • CAT. No.A1280006
  • CAS. No.188690-83-7
  • Mol. F.C33H36N2O4
  • Mol. W.524.65 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Related Compound DTrifluoroacetate
Formoterol Related Compound DTrifluoroacetate
  • CAT. No.A1280007
  • CAS. No.NA
  • Mol. F.C22H27F3N2O6
  • Mol. W.472.45 g/mol
  • Stock Status:Custom Synthesis
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Formoterol
Formoterol
  • CAT. No.F310000
  • CAS. No.73573-87-2
  • Mol. F.C19H24N2O4
  • Mol. W.344.40 g/mol
  • Stock Status:Instock
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Formoterol Fumarate Monohydrate
Formoterol Fumarate Monohydrate
  • CAT. No.F310000A
  • CAS. No.183814-30-4
  • Mol. F.C42H56N4O14
  • Mol. W.822.90 g/mol
  • Stock Status:Instock
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Formoterol fumarate Anhydrous
Formoterol fumarate Anhydrous
  • CAT. No.F310000B
  • CAS. No.43229-80-7
  • Mol. F.2C19H24N2O4.C4H4O4
  • Mol. W.804.88 g/mol
  • Stock Status:Custom Synthesis
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Formoterol fumarate dihydrate
Formoterol fumarate dihydrate
  • CAT. No.F310000D
  • CAS. No.183814-30-4
  • Mol. F.2C19H24N2O4.C4H4O4.2H2O
  • Mol. W.840.91 g/mol
  • Stock Status:Instock
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Formoterol EP Impurity E
Formoterol EP Impurity E
  • CAT. No.F310001
  • CAS. No.1616967-26-0
  • Mol. F.C20H26N2O4
  • Mol. W.358.43 g/mol
  • Stock Status:Instock
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Formoterol Impurity I
Formoterol Impurity I
  • CAT. No.F310002
  • CAS. No.169375-55-7
  • Mol. F.C23H28N2O8
  • Mol. W.460.48 g/ mol
  • Stock Status:Custom Synthesis
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Formoterol Fumarate Dihydrate EP Impurity G Hydrochloride
Formoterol Fumarate Dihydrate EP Impurity G Hydrochloride
  • CAT. No.F310003
  • CAS. No.3706-26-1
  • Mol. F.C10H15NO.HCl
  • Mol. W.201.69 g/mol
  • Stock Status:Instock
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Formoterol Fumarate Dihydrate EP Impurity G
Formoterol Fumarate Dihydrate EP Impurity G
  • CAT. No.F310003A
  • CAS. No.64-13-1
  • Mol. F.C10H15NO
  • Mol. W.165.23 g/mol
  • Stock Status:Instock
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Formoterol EP Impurity F (Mixture of Diastereomers)
Formoterol EP Impurity F (Mixture of Diastereomers)
  • CAT. No.F310005
  • CAS. No.1795129-59-7
  • Mol. F.C37H46N4O6
  • Mol. W.642.80 g/mol
  • Stock Status:Under Synthesis
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Formoterol Fumarate EP Impurity A Hydrate
Formoterol Fumarate EP Impurity A Hydrate
  • CAT. No.F310006
  • CAS. No.NA
  • Mol. F.C18H26N2O4
  • Mol. W.334.41 g/mol
  • Stock Status:Instock
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Formoterol EP Impurity B
Formoterol EP Impurity B
  • CAT. No.F310007
  • CAS. No.1224588-66-2
  • Mol. F.C18H22N2O4
  • Mol. W.330.38 g/mol
  • Stock Status:Instock
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Formoterol Fumarate Dihydrate EP Impurity C
Formoterol Fumarate Dihydrate EP Impurity C
  • CAT. No.F310008
  • CAS. No.1795135-61-3
  • Mol. F.C20H26N2O4
  • Mol. W.358.43 g/mol
  • Stock Status:Instock
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Formoterol Fumarate Dihydrate EP Impurity D
Formoterol Fumarate Dihydrate EP Impurity D
  • CAT. No.F310009
  • CAS. No.1795133-96-8
  • Mol. F.C20H26N2O4
  • Mol. W.358.43 g/mol
  • Stock Status:Limited Stock
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Formoterol Impurity H (Mixture of Diastereomers)
Formoterol Impurity H (Mixture of Diastereomers)
  • CAT. No.F310011
  • CAS. No.2514947-17-0
  • Mol. F.C26H30N2O4
  • Mol. W.434.54 g/mol
  • Stock Status:Limited Stock
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Formeterol Amino Impurity
Formeterol Amino Impurity
  • CAT. No.F310013
  • CAS. No.NA
  • Mol. F.NA
  • Mol. W.NA
  • Stock Status:Custom Synthesis
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Formoterol Bromo Impurity
Formoterol Bromo Impurity
  • CAT. No.F310014
  • CAS. No.NA
  • Mol. F.C19H23BrN2O4
  • Mol. W.423.31 g/mol
  • Stock Status:Custom Synthesis
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Formoterol related compound I (Mixture of R,S isomer)
Formoterol related compound I (Mixture of R,S isomer)
  • CAT. No.F310016
  • CAS. No.532414-36-1
  • Mol. F.C19H24N2O4
  • Mol. W.344.40 g/mol
  • Stock Status:Instock
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Formoterol EP Impurity G
Formoterol EP Impurity G
  • CAT. No.F310018
  • CAS. No.64-13-1
  • Mol. F.C10H15NO
  • Mol. W.165.23 g/mol
  • Stock Status:Custom Synthesis
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Formoterol EP Impurity H
Formoterol EP Impurity H
  • CAT. No.F310019
  • CAS. No.2514947-17-0
  • Mol. F.C26H30N2O4
  • Mol. W.434.53 g/mol
  • Stock Status:Custom Synthesis
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Benzyl Formoterol
Benzyl Formoterol
  • CAT. No.F310020
  • CAS. No.NA
  • Mol. F.C26H30N2O4
  • Mol. W.434.50 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Amine
Formoterol Amine
  • CAT. No.F310021
  • CAS. No.43229-65-8
  • Mol. F.C17H21NO
  • Mol. W.255.35 g/mol
  • Stock Status:Instock
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Formoterol Impurity 1
Formoterol Impurity 1
  • CAT. No.F310022
  • CAS. No.43229-70-5
  • Mol. F.C33H36N2O4
  • Mol. W.524.65 g/mol
  • Stock Status:Instock
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N-(5-Formyl-2-hydroxyphenyl)formamide
N-(5-Formyl-2-hydroxyphenyl)formamide
  • CAT. No.F310023
  • CAS. No.903563-43-9
  • Mol. F.C8H7NO3
  • Mol. W.165.15 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Impurity 11
Formoterol Impurity 11
  • CAT. No.F310024
  • CAS. No.126002-14-0
  • Mol. F.C11H15NO2
  • Mol. W.193.24 g/mol
  • Stock Status:Custom Synthesis
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N-[2-(4-Methoxyphenyl)-1-methylethyl]aspartic Acid (Mixture of Diastereomers)
N-[2-(4-Methoxyphenyl)-1-methylethyl]aspartic Acid (Mixture of Diastereomers)
  • CAT. No.F310025
  • CAS. No.NA
  • Mol. F.C14H19NO5
  • Mol. W.281.30 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Deshydroxy Impurity
Formoterol Deshydroxy Impurity
  • CAT. No.F310026
  • CAS. No.477552-93-5
  • Mol. F.C19H24N2O3
  • Mol. W.328.41 g/mol
  • Stock Status:Custom Synthesis
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1-(4-Methoxyphenyl)propan-2-amine.
1-(4-Methoxyphenyl)propan-2-amine.
  • CAT. No.F310027
  • CAS. No.NA
  • Mol. F.C10H15NO
  • Mol. W.165.23 g/mol
  • Stock Status:Custom Synthesis
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3-Methyl Formoterol Hemifumarate (Mixture of Diastereomers)
3-Methyl Formoterol Hemifumarate (Mixture of Diastereomers)
  • CAT. No.F310028
  • CAS. No.1795136-92-3
  • Mol. F.(C20H26N2O4)2.C4H4O4
  • Mol. W.416.43 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Impurity 7
Formoterol Impurity 7
  • CAT. No.F310029
  • CAS. No.NA
  • Mol. F.C19H24N2O3
  • Mol. W.328.41 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Impurity 8
Formoterol Impurity 8
  • CAT. No.F310030
  • CAS. No.NA
  • Mol. F.C21H28N2O4
  • Mol. W.372.46 g/mol
  • Stock Status:Custom Synthesis
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(S)-(-)-Diphenyl -2-pyrrolidine methanol
(S)-(-)-Diphenyl -2-pyrrolidine methanol
  • CAT. No.F310031
  • CAS. No.112068-01-6
  • Mol. F.C17H19NO
  • Mol. W.253.3 g/mol
  • Stock Status:Custom Synthesis
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(S,S)-Formoterol
(S,S)-Formoterol
  • CAT. No.F310032
  • CAS. No.67346-48-9
  • Mol. F.C19H24N2O4
  • Mol. W.344.40 g/mol
  • Stock Status:Custom Synthesis
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(R)-N-(2-(Benzyloxy)-5-(2-bromo-1-hydroxyethyl)phenyl) formamide
(R)-N-(2-(Benzyloxy)-5-(2-bromo-1-hydroxyethyl)phenyl) formamide
  • CAT. No.F310033
  • CAS. No.201677-59-0
  • Mol. F.C16H16BrNO3
  • Mol. W.350.21 g/mol
  • Stock Status:Custom Synthesis
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rac Formoterol O-Sulfate Sodium Salt
rac Formoterol O-Sulfate Sodium Salt
  • CAT. No.F310036
  • CAS. No.250336-08-4
  • Mol. F.C19H23N2NaO7S
  • Mol. W.446.45 g/mol
  • Stock Status:Custom Synthesis
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Formoterol EP Impurity C Trifluoroacetate
Formoterol EP Impurity C Trifluoroacetate
  • CAT. No.F310038
  • CAS. No.NA
  • Mol. F.C22H26N2O6F3
  • Mol. W.472.45 g/mol
  • Stock Status:Custom Synthesis
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Formoterol EP Impurity D Fumarate Salt
Formoterol EP Impurity D Fumarate Salt
  • CAT. No.F310039
  • CAS. No.1795133-97-9
  • Mol. F.C24H30N2O8
  • Mol. W.474.50 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso Formoterol (Mixture of Isomers)
N-Nitroso Formoterol (Mixture of Isomers)
  • CAT. No.F310040
  • CAS. No.NA
  • Mol. F.C19H23N3O5
  • Mol. W.373.40 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso (S,S)-Formoterol
N-Nitroso (S,S)-Formoterol
  • CAT. No.F310041
  • CAS. No.NA
  • Mol. F.C19H23N3O5
  • Mol. W.373.40 g/mol
  • Stock Status:Custom Synthesis
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Formoterol EP Impurity A
Formoterol EP Impurity A
  • CAT. No.F310042
  • CAS. No.150513-24-9
  • Mol. F.C18H24N2O3
  • Mol. W.316.40 g/mol
  • Stock Status:Limited Stock
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Formoterol Impurity 1
Formoterol Impurity 1
  • CAT. No.F310043
  • CAS. No.49861-92-9
  • Mol. F.C18H22N2O4
  • Mol. W.330.38 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso Formoterol Amine
N-Nitroso Formoterol Amine
  • CAT. No.F310044
  • CAS. No.NA
  • Mol. F.C17H20N2O2
  • Mol. W.284.35 g/mol
  • Stock Status:Instock
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N-(2-hydroxy-5-(2-((1-(4-methoxyphenyl)propan-2-yl)amino)ethyl)phenyl)formamide
N-(2-hydroxy-5-(2-((1-(4-methoxyphenyl)propan-2-yl)amino)ethyl)phenyl)formamide
  • CAT. No.F310045
  • CAS. No.NA
  • Mol. F.C19H24N2O3
  • Mol. W.328.41 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Impurity 14
Formoterol Impurity 14
  • CAT. No.F310046
  • CAS. No.NA
  • Mol. F.C14H19NO5
  • Mol. W.281.30 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Fumarate Dihydrate EP Impurity C Fumarate salt
Formoterol Fumarate Dihydrate EP Impurity C Fumarate salt
  • CAT. No.F310048
  • CAS. No.1795135-62-4
  • Mol. F.C24H30N2O8
  • Mol. W.474.50 g/mol
  • Stock Status:Custom Synthesis
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N-(1-(4-methoxyphenyl)propan-2-yl)-N-phenylnitrous amide
N-(1-(4-methoxyphenyl)propan-2-yl)-N-phenylnitrous amide
  • CAT. No.F310049
  • CAS. No.NA
  • Mol. F.C16H18N2O2
  • Mol. W.270.33 g/mol
  • Stock Status:Custom Synthesis
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N-(3-amino-4-hydroxyphenethyl)-N-(1-(4-methoxyphenyl)propan-2-yl)nitrous amide
N-(3-amino-4-hydroxyphenethyl)-N-(1-(4-methoxyphenyl)propan-2-yl)nitrous amide
  • CAT. No.F310050
  • CAS. No.NA
  • Mol. F.C18H23N3O3
  • Mol. W.329.39 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso Arformoterol
N-Nitroso Arformoterol
  • CAT. No.F310051
  • CAS. No.NA
  • Mol. F.C19H23N3O5
  • Mol. W.329.39 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Ethyl Ether Impurity
Formoterol Ethyl Ether Impurity
  • CAT. No.F310052
  • CAS. No.NA
  • Mol. F.C21H28N2O4
  • Mol. W.372.46 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Impurity 20
Formoterol Impurity 20
  • CAT. No.F310053
  • CAS. No.NA
  • Mol. F.C19H23BrN2O4
  • Mol. W.423.30 g/mol
  • Stock Status:Custom Synthesis
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Formoterol EP Impurity B Fumarate
Formoterol EP Impurity B Fumarate
  • CAT. No.F310054
  • CAS. No.1795137-04-0
  • Mol. F.C18H22N2O4.C4H4O4
  • Mol. W.446.45 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Impurity 22
Formoterol Impurity 22
  • CAT. No.F310055
  • CAS. No.67346-67-2
  • Mol. F.C26H30N2O4
  • Mol. W.434.53 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Impurity 24
Formoterol Impurity 24
  • CAT. No.F310056
  • CAS. No.1823732-07-5
  • Mol. F.C15H14ClNO4
  • Mol. W.307.73 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Impurity 25
Formoterol Impurity 25
  • CAT. No.F310057
  • CAS. No.NA
  • Mol. F.C15H15NO4
  • Mol. W.273.28 g/mol
  • Stock Status:Custom Synthesis
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Formoterol EP Impurity A Fumarate
Formoterol EP Impurity A Fumarate
  • CAT. No.F310058
  • CAS. No.2125949-56-4
  • Mol. F.C18H24N2O3.C4H4O4
  • Mol. W.432.47 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Impurity 27
Formoterol Impurity 27
  • CAT. No.F310059
  • CAS. No.43229-66-9
  • Mol. F.C32H32N2O5
  • Mol. W.524.61 g/mol
  • Stock Status:Instock
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Formoterol Impurity 2
Formoterol Impurity 2
  • CAT. No.F310060
  • CAS. No.NA
  • Mol. F.C14H17NO5.2Na
  • Mol. W.325.27 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Impurity 3
Formoterol Impurity 3
  • CAT. No.F310061
  • CAS. No.NA
  • Mol. F.C21H28N2O4
  • Mol. W.372.46 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Impurity 4
Formoterol Impurity 4
  • CAT. No.F310062
  • CAS. No.NA
  • Mol. F.C22H28N2O7
  • Mol. W.432.47 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Impurity 6
Formoterol Impurity 6
  • CAT. No.F310063
  • CAS. No.NA
  • Mol. F.C22H28N2O7
  • Mol. W.432.47 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Impurity 9
Formoterol Impurity 9
  • CAT. No.F310064
  • CAS. No.43229-67-0
  • Mol. F.C32H34N2O5
  • Mol. W.526.62 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Impurity 10
Formoterol Impurity 10
  • CAT. No.F310065
  • CAS. No.43229-68-1
  • Mol. F.C32H36N2O3
  • Mol. W.496.64 g/mol
  • Stock Status:Custom Synthesis
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Formoterol Impurity 5
Formoterol Impurity 5
  • CAT. No.F310066
  • CAS. No.3027-13-2
  • Mol. F.C10H12O2
  • Mol. W.164.20 g/mol
  • Stock Status:Instock
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Formoterol Impurity 12
Formoterol Impurity 12
  • CAT. No.F310067
  • CAS. No.5211-62-1
  • Mol. F.C10H12O2
  • Mol. W.164.20 g/mol
  • Stock Status:Instock
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Formoterol Impurity 16
Formoterol Impurity 16
  • CAT. No.F310068
  • CAS. No.NA
  • Mol. F.C17H21NO
  • Mol. W.255.35 g/mol
  • Stock Status:Please Enquire
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Formoterol Impurity 17
Formoterol Impurity 17
  • CAT. No.F310069
  • CAS. No.NA
  • Mol. F.C19H24N2O3
  • Mol. W.328.41 g/mol
  • Stock Status:Custom Synthesis
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Metabolites

Formoterol Phenolic Glucuronide
Formoterol Phenolic Glucuronide
  • CAT. No.F310034
  • CAS. No.615551-59-2
  • Mol. F.C25H32N2O10
  • Mol. W.520.53 g/mol
  • Stock Status:Under Synthesis
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C-Demethyl N-Benzyl Formoterol O-Benzyl Ether
C-Demethyl N-Benzyl Formoterol O-Benzyl Ether
  • CAT. No.F310037
  • CAS. No.NA
  • Mol. F.C32H34N2O4
  • Mol. W.510.62 g/mol
  • Stock Status:Custom Synthesis
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O-Demethylated Formoterol
O-Demethylated Formoterol
  • CAT. No.F310047
  • CAS. No.NA
  • Mol. F.C24H30N2O10
  • Mol. W.506.50 g/mol
  • Stock Status:Custom Synthesis
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Isotope Labelled Compounds

Formoterol -D6 Fumarate
Formoterol -D6 Fumarate
  • CAT. No.F310015
  • CAS. No.43229-80-7(Unlabelled)
  • Mol. F.C42H40D12N4O12
  • Mol. W.816.96 g/mol
  • Stock Status:Instock
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