Active ingredientBarbitalCat. No. P-B010-001CAS 57-44-3
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Impurity or related compound · Barbital family
Pharmaceutical analytical standardIdobutal
Synonyms: 5-butyl-5-prop-2-enyl-1,3-diazinane-2,4,6-trione, n-Butylallylbarbituric acid, n-Butylallylbarbitone, Allylbutylbarbituric acid, Barbituric acid, 5-allyl-5-butyl-, NSC 27524, Vinylmethylbutylbarbitursaure, Barbituric acid, 5-butyl-5-(2-propenyl)
- Cat. No.
- P-B010-003
- CAS
- 3146-66-5
- Alternative CAS
- N/A
- Formula
- C11H16N2O3
- Molecular weight
- 224.26 g/mol
- Category
- Impurity or related compound
Family: Barbital
The first barbiturate to reach the market: synthesised in 1902 by German chemists Emil Fischer and Joseph von Mering, it was used as a sleeping aid from 1903 until the mid-1950s.
Did you know?For decades sodium barbital served in laboratories as a pH buffer, for example in the immunoelectrophoresis of proteins.
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 Barbital family
Active ingredientBarbitalCat. No. P-B010-001CAS 57-44-3
Active ingredientBarbital SodiumCat. No. P-B010-002CAS 144-02-5
ImpurityTalbutalCat. No. P-B010-004CAS 115-44-6Frequently 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.