Active ingredientGestodeneCat. No. P-G030-001CAS 60282-87-3
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Impurity or related compound · Gestodene family
Pharmaceutical analytical standardGestodene Impurity 2
Synonyms: 15alpha-Acetoxy-18-methyl-4-estren-3,17-dione
- Cat. No.
- P-G030-016
- CAS
- 104933-97-3
- Alternative CAS
- N/A
- Formula
- C21H28O4
- Molecular weight
- 344.45 g/mol
- Category
- Impurity or related compound
Family: Gestodene
A third-generation progestin, synthesised in 1975 and introduced in 1987 in combined contraceptive pills; in some countries it is also used, with estradiol, in menopausal hormone therapy.
Did you know?It is almost identical to levonorgestrel, differing by a single double bond, and it is the most potent contraceptive progestin: it blocks ovulation at doses about 10,000 times lower than progesterone.
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 Gestodene family
Active ingredientGestodeneCat. No. P-G030-001CAS 60282-87-3
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Pharmacopoeial impurityGestodene EP Impurity ICat. No. P-G030-003CAS 2948318-72-5
Pharmacopoeial impurityGestodene EP Impurity ACat. No. P-G030-004
Pharmacopoeial impurityGestodene EP Impurity BCat. No. P-G030-005
Pharmacopoeial impurityGestodene EP Impurity DCat. No. P-G030-006
Pharmacopoeial impurityGestodene EP Impurity ECat. No. P-G030-007CAS 2143949-52-2
Pharmacopoeial impurityGestodene EP Impurity FCat. No. P-G030-008CAS 267650-77-1Frequently 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.