Active ingredientAcetylsalicylic AcidCat. No. P-A026-001CAS 50-78-2
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Impurity or related compound · Acetylsalicylic Acid family
Pharmaceutical analytical standardIsopropyl Acetylsalicylate
Synonyms: propan-2-yl 2-acetyloxybenzoate, NSC 406668
- Cat. No.
- P-A026-041
- CAS
- 2224-88-6
- Alternative CAS
- N/A
- Formula
- C12H14O4
- Molecular weight
- 222.24 g/mol
- Category
- Impurity or related compound
Family: Acetylsalicylic Acid
Obtained in a pure and stable form in 1897 and on the market since 1899, it is one of the most used medicines ever. Born as a painkiller and fever reducer, at low doses it is now used to prevent heart attacks and strokes.
Did you know?It descends from willow bark, used against fever and pain since antiquity: the word salicylate comes from the Latin salix.
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 Acetylsalicylic Acid family
Active ingredientAcetylsalicylic AcidCat. No. P-A026-001CAS 50-78-2
Pharmacopoeial impurityDL-lysine acetylsalicylate EP Impurity GCat. No. P-A026-003CAS 35436-74-9
Pharmacopoeial impurityAcetylsalicylic Acid EP Impurity DCat. No. P-A026-004CAS 530-75-6
Pharmacopoeial impurityAcetylsalicylic Acid EP Impurity ECat. No. P-A026-005CAS 552-94-3
Pharmacopoeial impurityAcetylsalicylic Acid EP Impurity FCat. No. P-A026-006CAS 1466-82-6
MetaboliteAcetylsalicylic Acid Acyl-D-GlucuronideCat. No. P-A026-007CAS 24719-72-0
Isotopically labelled4-Hydroxybenzoic-2,3,5,6-d4 acidCat. No. P-A026-009CAS 152404-47-2
Isotopically labelledAcetylsalicylic Acid EP Impurity A-13C6Cat. No. P-A026-010CAS 287399-29-5Frequently 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.