Active ingredientUreaCat. No. P-U011-001CAS 57-13-6
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Nitrosamine · Urea family
Pharmaceutical analytical standard1-Ethyl-3-(3-(methyl (nitroso)amino)propyl)urea
- Cat. No.
- P-U011-008
- CAS
- N/A
- Alternative CAS
- N/A
- Formula
- C7H16N4O2
- Molecular weight
- 188.23 g/mol
- Category
- Nitrosamine
Family: Urea
The main nitrogen-containing substance in mammalian urine: it is made in the liver through the urea cycle and is how the body gets rid of nitrogen. Over 90% of industrial production becomes fertiliser, and it is also used in moisturising creams.
Did you know?In 1828 Friedrich Wöhler made it in the laboratory from inorganic substances: a result often cited as the starting point of modern organic chemistry.
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.
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Active ingredientUreaCat. No. P-U011-001CAS 57-13-6
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Isotopically labelledHydroxy Urea-13C-15N2Cat. No. P-U011-004CAS 1246814-92-5
Isotopically labelledHydroxy Urea-15NCat. No. P-U011-005CAS 214331-53-0
Isotopically labelledN-Nitroso Urea-13CCat. No. P-U011-007
NitrosamineN-Nitroso UreaCat. No. P-U011-009CAS 13010-20-3
Impurity(2-Aminoethyl) Urea HydrochlorideCat. No. P-U011-010CAS 858001-69-1Frequently 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.