Active ingredientCyproterone AcetateCat. No. P-C276-001CAS 427-51-0
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Impurity or related compound · Cyproterone family
Pharmaceutical analytical standardCyproterone Acetate Chlorohydrin Impurity
- Cat. No.
- P-C276-022
- CAS
- N/A
- Alternative CAS
- N/A
- Formula
- C22H29ClO4
- Molecular weight
- 392.92 g/mol
- Category
- Impurity or related compound
Family: Cyproterone
A steroidal antiandrogen and progestogen, used as cyproterone acetate: synthesised in Germany in 1961, it is used for acne and hirsutism, in prostate cancer and, together with an oestrogen, in hormonal contraception.
Did you know?It was born as a progestogen: its antiandrogenic properties were discovered by chance in the 1960s, and in 1973 it became the first antiandrogen introduced into medical use.
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 Cyproterone family
Active ingredientCyproterone AcetateCat. No. P-C276-001CAS 427-51-0
Pharmacopoeial impurityCyproterone Acetate EP Impurity ACat. No. P-C276-002CAS 2701-50-0
Pharmacopoeial impurityCyproterone Acetate EP Impurity BCat. No. P-C276-003
Pharmacopoeial impurityCyproterone Acetate EP Impurity CCat. No. P-C276-004CAS 17183-98-1
Pharmacopoeial impurityCyproterone Acetate EP Impurity DCat. No. P-C276-005
Pharmacopoeial impurityCyproterone Acetate EP Impurity ECat. No. P-C276-006CAS 17184-05-3
Pharmacopoeial impurityCyproterone Acetate EP Impurity FCat. No. P-C276-007CAS 2098-66-0
Pharmacopoeial impurityCyproterone Acetate EP Impurity GCat. No. P-C276-008CAS 23814-84-8Frequently 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.