Active ingredientEquileninCat. No. P-E076-001CAS 517-09-9
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Active ingredient · Equilenin family
Pharmaceutical analytical standardEquilenin Sulfate Sodium Salt
Synonyms: Sodium Equilenin Sulfate
- Cat. No.
- P-E076-002
- CAS
- 16680-48-1
- Alternative CAS
- 27651-95-2 (free acid)
- Formula
- C18H17NaO5S
- Molecular weight
- 368.38 g/mol
- Category
- Active ingredient (API)
Family: Equilenin
A natural steroidal oestrogen found in the urine of pregnant mares. As equilenin sulfate it is one of the components of the conjugated oestrogens used in hormone therapy.
Did you know?It was the first complex natural product to be fully synthesised in the laboratory, in work reported by 1940 by chemists Bachmann and Wilds.
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 Equilenin family
Active ingredientEquileninCat. No. P-E076-001CAS 517-09-9
MetaboliteEquilenin 3-O-beta-D-Glucuronide Sodium SaltCat. No. P-E076-003
Isotopically labelledEquilenin-d4 Sulfate Sodium SaltCat. No. P-E076-004
Impurity17-alpha-Dihydro EquileninCat. No. P-E076-005CAS 6639-99-2
Impurity17-alpha-Dihydro Equilenin 17-Sulfate Sodium SaltCat. No. P-E076-006
Impurity17-beta-3-Methoxydihydro EquileninCat. No. P-E076-007CAS 15375-29-8
Impurity17-beta-Dihydro EquileninCat. No. P-E076-008CAS 1423-97-8Frequently 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.