Category
Formoterol
CAS Number
Formoterol STD - 73573-87-2 : IMP - A - 150513-24-9 : IMP - C - 1795135-61-3 : IMP - F - 1795129-59-7 ;
Alternate CAS Number
183814-30-4 (Formoterol Fumarate Dihydrate) , 43229-80-7(Fumarate Salt)
Molecular Formula
Formoterol STD - C19H24N2O4 : IMP - A - C18H24N2O3 : IMP - C - C20H26N2O4 : IMP - F - C37H46N4O6 ;
Molecular Weight
Formoterol STD - 344.4 g/mol : IMP - A - 316.40 g/mol : IMP - C - 358.43 g/mol : IMP - F - 642.80 g/mol ;
Synonym

Formoterol -  : rel-N-(2-Hydroxy-5-((R)-1-hydroxy-2-(((R)-1-(4-methoxyphenyl)propan-2-yl)amino)ethyl)phenyl)formamide;

 Formoterol EP Impurity A - 1-(3-Amino-4-hydroxyphenyl)-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethanol ; 2-Amino-4-(1-hydroxy-2-{[1-(4-methoxyphenyl)-2-propanyl]amino}ethyl)phenol ; 

Formoterol EP Impurity C - N-[2-Hydroxy-5-[1-hydroxy-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]acetamide ; N-(2-Hydroxy-5-(1-hydroxy-2-((1-(4-methoxyphenyl)propan-2-yl)amino)ethyl)phenyl)acetamide ;

Formoterol EP Impurity F - N-[2-Hydroxy-5-[1-[[2-hydroxy-5-[1-hydroxy-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]amino]-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]formamide ;Formoterol Related Compound F ; N-(2-Hydroxy-5-(1-((2-hydroxy-5-(1-hydroxy-2-((1-(4-methoxyphenyl)propan-2-yl)amino)ethyl)phenyl)amino)-2-((1-(4-methoxyphenyl)propan-2-yl)amino)ethyl)phenyl)formamide; 

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Purity:

Above - 95.0%

Technical Data:

We will provide complete documentation support for every Standard Material. All analytical reports such as ¹H NMR, ¹³C NMR, Mass, FT-IR, HPLC Purity/GC Purity/QNMR Purity, Water content by KF/ Loss on Drying/TGA (Thermo-gravimetric Analysis). Certificate of Analysis with potency report. Each Standard Material SER (Structure Elucidation Report) with NMR, Mass, IR spectral interpretation. This whole analytical document can be included in eCTD, ANDA, DMF submissions to regulatory agencies.

Formoterol is used as a system suitability Chemical Reference Standard (CRS) to ensure the accuracy and reliability of analytical methods in pharmaceutical quality control. It helps verify method performance, including precision and reproducibility, in techniques like HPLC and LC-MS.