Active ingredientHalobetasolCat. No. P-H002-001CAS 98651-66-2
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Impurity or related compound · Halobetasol family
Pharmaceutical analytical standardHalobetasol Impurity 3
- Cat. No.
- P-H002-016
- CAS
- N/A
- Alternative CAS
- N/A
- Formula
- C25H31ClF2O5
- Molecular weight
- 484.96 g/mol
- Category
- Impurity or related compound
Family: Halobetasol
A super-high-potency topical corticosteroid, patented in 1975 and approved in the United States in 1990 for psoriasis and other steroid-responsive skin conditions.
Did you know?Its international non-proprietary name (INN) is ulobetasol, while halobetasol is the name used in the United States. Chemically it is a close relative of clobetasol, with one extra fluorine atom.
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 Halobetasol family
Active ingredientHalobetasolCat. No. P-H002-001CAS 98651-66-2
Active ingredientHalobetasol DipropionateCat. No. P-H002-002CAS 886204-51-9
Active ingredientHalobetasol PropionateCat. No. P-H002-003CAS 66852-54-8
Isotopically labelledHalobetasol Propionate-d5Cat. No. P-H002-004
Isotopically labelledHalobetasol-d3Cat. No. P-H002-005
Isotopically labelledHalobetasol-d3 PropionateCat. No. P-H002-006
Impurity11-Propionate 21-chloro diflorasoneCat. No. P-H002-007CAS 181527-42-4
Impurity21-Acetate 17-propionate diflorasoneCat. No. P-H002-008CAS 79861-38-4Frequently 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.