Active ingredientTobramycinCat. No. P-T139-001CAS 32986-56-4
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Impurity or related compound · Tobramycin family
Pharmaceutical analytical standardTobramycin Impurity 3
Synonyms: 4-Amino-2-[4,6-diamino-3-[[3-amino-6-(aminomethyl)-3,4-dihydro-2H-pyran-2-yl]oxy]-2-hydroxycyclohexyl]oxy-6-(hydroxymethyl)oxane-3,5-diol
- Cat. No.
- P-T139-013
- CAS
- 74501-86-3
- Alternative CAS
- N/A
- Formula
- C18H35N5O8
- Molecular weight
- 449.50 g/mol
- Category
- Impurity or related compound
Family: Tobramycin
An aminoglycoside antibiotic produced by the soil bacterium Streptomyces tenebrarius, patented in 1965 and approved in 1974; it is especially effective against bacteria of the genus Pseudomonas.
Did you know?It is very poorly absorbed from the gut, so it is not taken by mouth: it is given by injection, as eye drops and also by inhalation, to reach the lungs directly in people with cystic fibrosis.
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 Tobramycin family
Active ingredientTobramycinCat. No. P-T139-001CAS 32986-56-4
Active ingredientTobramycin sulfateCat. No. P-T139-002CAS 126777-32-0
Isotopically labelledTobramycin DeuteratedCat. No. P-T139-003
Impurity2'-N-Ureido TobramycinCat. No. P-T139-005CAS 64332-33-8
ImpurityTobramycin Impurity 1Cat. No. P-T139-006CAS 52850-89-2
Impurity3-N-Ureido TobramycinCat. No. P-T139-007
Impurity3-N-Ureido Tobramycin HClCat. No. P-T139-008
Impurity3-N-Ureido Tobramycin Tetrahydrochloride SaltCat. No. P-T139-009Frequently 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.