Active ingredientGoserelinCat. No. P-G057-001CAS 65807-02-5
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Pharmacopoeial impurity · Goserelin family
Pharmaceutical analytical standardGoserelin EP Impurity G
Synonyms: (D-His2)-Goserelin, Goserelin Impurity G
- Cat. No.
- P-G057-008
- CAS
- 1926163-37-2
- Alternative CAS
- N/A
- Formula
- C59H84N18O14
- Molecular weight
- 1269.43 g/mol
- Category
- Pharmacopoeial impurity (EP/USP)
Family: Goserelin
A synthetic analogue of GnRH, the hormone that controls the production of sex hormones: on the market since 1987, it is used for hormone-dependent prostate and breast cancer, endometriosis and uterine fibroids.
Did you know?It is given as a tiny cylinder the size of a grain of rice, injected under the skin of the abdomen: it is made of a biodegradable polymer that dissolves slowly, releasing the drug over weeks or months.
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 Goserelin family
Active ingredientGoserelinCat. No. P-G057-001CAS 65807-02-5
Active ingredientGoserelin AcetateCat. No. P-G057-002CAS 145781-92-6
Pharmacopoeial impurityGoserelin EP Impurity D DitrifluoroacetateCat. No. P-G057-005
Pharmacopoeial impurityGoserelin EP Impurity ECat. No. P-G057-006CAS 147688-42-4
Pharmacopoeial impurityGoserelin EP Impurity E TritrifluoroacetateCat. No. P-G057-007
Pharmacopoeial impurityGoserelin EP Impurity K Acetate SaltCat. No. P-G057-012
Isotopically labelledGoserelin-d5Cat. No. P-G057-015
Impurity(D-Leu7)-GoserelinCat. No. P-G057-017CAS 1926163-38-3Frequently 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.