Active ingredientBifonazoleCat. No. P-B080-001CAS 60628-96-8
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Impurity or related compound · Bifonazole family
Pharmaceutical analytical standardBifonazole Impurity 1
Synonyms: N-[([1,1'-Biphenyl]-4-yl)(phenyl)methyl]formamide, N-[phenyl-(4-phenylphenyl)methyl]formamide
- Cat. No.
- P-B080-008
- CAS
- 91487-87-5
- Alternative CAS
- N/A
- Formula
- C20H17NO
- Molecular weight
- 287.36 g/mol
- Category
- Impurity or related compound
Family: Bifonazole
A topical imidazole antifungal, patented in 1974 and approved in 1983, used in creams and ointments for fungal skin infections and, combined with urea, for nail infections.
Did you know?It blocks the synthesis of ergosterol, the 'cholesterol' of fungi, at two different points instead of one: that is why against dermatophytes it does not just hold them back, it kills them.
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 Bifonazole family
Active ingredientBifonazoleCat. No. P-B080-001CAS 60628-96-8
Pharmacopoeial impurityBifonazole EP Impurity ACat. No. P-B080-002CAS 7598-80-3
Pharmacopoeial impurityBifonazole EP Impurity BCat. No. P-B080-003CAS 91679-37-7
Pharmacopoeial impurityBifonazole EP Impurity D ChlorideCat. No. P-B080-004CAS 66600-13-3
Isotopically labelledBifonazole-d5Cat. No. P-B080-005CAS 2747913-95-5
ImpurityAlpha-(4-Biphenylyl)benzylamineCat. No. P-B080-006CAS 91487-88-6
ImpurityBifonazole Impurity ECat. No. P-B080-007Frequently 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.