Stable isotope labelled · Melatonin family
Pharmaceutical analytical standard6-Hydroxy Melatonin-d4
- Cat. No.
- P-M037-004
- CAS
- 69533-61-5
- Alternative CAS
- 2208-41-5 (unlabelled form)
- Formula
- C13H12D4N2O3
- Molecular weight
- 252.31 g/mol
- Category
- Stable isotope labelled
Family: Melatonin
A hormone produced by the pineal gland mainly at night: it signals darkness to the body and regulates the sleep-wake rhythm. It was isolated in 1958 by dermatologist Aaron B. Lerner and his team at Yale University, from bovine pineal gland extracts.
Did you know?As early as 1917 it was seen that extracts of cow pineal glands lightened the skin of tadpoles; the name comes from the Greek melas (black) and tonos, on the model of serotonin.
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
Shipped under controlled temperature when the molecule requires it.
For every lot: identity, purity and assay, with the supporting spectra and chromatograms.
Sent with every order.
Follow your shipment live, from our warehouse to your lab.
More products in the Melatonin family
Frequently 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.
