Active ingredientNatamycinCat. No. P-N024-001CAS 7681-93-8
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Impurity or related compound · Natamycin family
Pharmaceutical analytical standardNatamycin Impurity 2
Synonyms: (1R,3S,5E,7E,11R,13E,15E,17E,19E,21R,23S,24R,25S)-21-[(2R,3S,4S,5S,6R)-4-Amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-1,3,25-trihydroxy-11,24-dimethyl-10,27-dioxabicyclo[21.3.1]heptacosa-5,7,13,15,17,19-hexaen-9-one
- Cat. No.
- P-N024-006
- CAS
- 1690351-53-1
- Alternative CAS
- N/A
- Formula
- C33H49NO10
- Molecular weight
- 619.75 g/mol
- Category
- Impurity or related compound
Family: Natamycin
A natural polyene antifungal produced by the bacterium Streptomyces natalensis and discovered in 1955: it is used in medicine against fungal infections and in the food industry to protect the surface of cheeses and cured sausages from mould.
Did you know?Its name comes from the South African province of Natal, where the soil sample it was isolated from was found; the molecule was originally called pimaricin.
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 Natamycin family
Active ingredientNatamycinCat. No. P-N024-001CAS 7681-93-8
ImpurityNatamycin Impurity 1Cat. No. P-N024-004CAS 314756-01-9
ImpurityNatamycin Methyl EsterCat. No. P-N024-010CAS 52555-04-1Frequently 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.