Active ingredientFormoterol (Mixture of Diastereomers)Cat. No. P-F115-001CAS 128954-45-0
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Pharmacopoeial impurity · Formoterol family
Pharmaceutical analytical standardFormoterol EP Impurity E (Mixture of Diastereomers)
Synonyms: N-(2-hydroxy-5-(1-hydroxy-2-((2-(4-methoxy-3-methylphenyl)-1-methylethyl)amino)ethyl)phenyl)formamide, Formoterol EP Impurity E, N-(2-Hydroxy-5-(1-hydroxy-2-((1-(4-methoxy-3-methylphenyl)propan-2-yl)amino)ethyl)phenyl)formamide
- Cat. No.
- P-F115-014
- CAS
- 1616967-26-0
- Alternative CAS
- N/A
- Formula
- C20H26N2O4
- Molecular weight
- 358.44 g/mol
- Category
- Pharmacopoeial impurity (EP/USP)
Family: Formoterol
A long-acting beta-2 agonist (LABA) bronchodilator patented in 1972: it relaxes the airway muscles for up to 12 hours and is used for asthma and chronic obstructive pulmonary disease (COPD).
Did you know?Despite its long action, it starts working within 2-3 minutes: this is why, combined with an inhaled corticosteroid, it is used both as maintenance therapy and as an as-needed reliever.
The two levels compared
| Level 1 Mass balance | Level 2 Mass balance + qNMR | |
|---|---|---|
| Identity (IR, MS, 1H and 13C-NMR; peptides: ESI-MS, MALDI-TOF and IR) | ✓ | ✓ |
| HPLC purity (min. 95%) | ✓ | ✓ |
| Content by mass balance (min. 90%; peptides: for information only)* | ✓ | ✓ |
| Content verified by qNMR (small molecules only) | · | ✓ |
| Suitable to qualify it as an in-house primary standard (ICH Q7) | · | ✓ |
* Mass balance is performed on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it, for example oils and highly volatile substances, on which some of the required measurements cannot be made: in those cases the CoA states how the content was assigned.
What you receive
The analytical standard
Shipped under controlled temperature when the molecule requires it.
Certificate of analysis (CoA)
For every lot: identity, purity and assay, with the supporting spectra and chromatograms.
Safety data sheet (SDS)
Sent with every order.
Tracked shipment
Follow your shipment live, from our warehouse to your lab.
More products in the Formoterol family
Active ingredientFormoterol (Mixture of Diastereomers)Cat. No. P-F115-001CAS 128954-45-0
Active ingredientFormoterolCat. No. P-F115-002CAS 73573-87-2
Active ingredientFormoterol Fumarate DihydrateCat. No. P-F115-004CAS 183814-30-4
Active ingredientFormoterol HemifumarateCat. No. P-F115-005CAS 43229-80-7
MetaboliteFormoterol O-SulfateCat. No. P-F115-006
Active ingredientFormoterol TartrateCat. No. P-F115-007
Pharmacopoeial impurityFormoterol EP Impurity A (Mixture of Diastereomers)Cat. No. P-F115-008CAS 150513-24-9
Pharmacopoeial impurityFormoterol EP Impurity BCat. No. P-F115-009CAS 1224588-66-2Frequently asked questions
Is mass balance always performed?
Yes, on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it: for example oils and highly volatile substances, on which some measurements (such as thermogravimetry) cannot be made. In those cases the CoA states which method was used to assign the content.
Can I ask for a different quantity?
Yes. The quantities are only suggestions: choose "Other" and enter the milligrams or grams you need.
Which level should I choose?
Level 1 is enough for most routine testing. Level 2 adds an independent qNMR content value and is meant for labs that need to qualify an in-house primary standard. For peptides and similar molecules, Level 2 is not available.
When will I get the quote?
Within 24 working hours, with price, availability and delivery time.
Need a molecule you cannot find?
Custom synthesis of impurities, metabolites and labelled compounds, with the same characterisation level.