Pharmacopoeial impurityDL-lysine acetylsalicylate EP Impurity GCat. No. P-A026-003CAS 35436-74-9
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Active ingredient · Acetylsalicylic Acid family
Pharmaceutical analytical standardAcetylsalicylic Acid
Synonyms: 2-acetyloxybenzoic acid, Acylpyrin, Acenterine, Acetophen, o-Acetoxybenzoic acid, Ecotrin, Aceticyl, Acetosalin, Polopiryna, Aspirdrops, Pharmacin, Premaspin, Salcetogen, Acetonyl, Benaspir, Empirin, Endydol, Measurin, Rhodine, Saletin, Temperal, Adiro, Ecolen, Acetosalic acid, Rheumintabletten, Solprin acid, Benzoic acid, 2-(acetyloxy)-, Enterosarine, Acetisal, Acetylsal, Aspirine, Bialpirina, Bialpirinia, Entericin, Enterophen, Globentyl, Salacetin, Solpyron, Acesal, Acisal, Asagran, Asteric, Caprin, Cemirit, Duramax, Extren, Globoid, Helicon, Idragin, Levius, Rhonal, Aspro, Novid, Yasta, Acimetten, Delgesic, Entrophen, Acetilum acidulatum, Acetilsalicilico, Dolean pH 8, Contrheuma retard, XAXA, Asatard, Durlaza, Ronal, Acetyl salicylate, Acetylsalicyclic acid, o-(Acetyloxy)benzoic acid, NSC 27223, NSC 406186, Duocover component aspirin, Yosprala component aspirin, Duoplavin component aspirin, Vetality, Ascurin, Danamep, Fasprin, Gencardia, Medpurine, Paynocil, Enprin, Platet, Disprin direct, Micropirin ec, Solves-aspirin, Aramark Aspirin, Aspirin Regimen, Canine Aspirin, Coated Aspirin, Enteric Aspirin, Equate Aspirin, Leader Aspirin, Medique Aspirin, Rapidol Aspirin, Sunmark Aspirin, Topcare Aspirin, Acetylsalic acid, Alka rapid, Aspirin Bolus, Aspirin Nsaid, Aspirin Packs, AspirinLow Dose, Disprin cv, Pain Reliever, Rugby Aspirin, Value Pharma, Aspro clr, Aspi-cor, Aspirin Chewable, Buffered Aspirin, Chewable Aspirin, Geritrex Aspirin, Plus Pharma, Regular Strength, Thompson Aspirin, McKesson Aspirin, Anadin all night, Aspir Low, Equi-Prin, Aspirin EC, Childrens Aspirin, Unishield Aspirin, Adult Low Dose, Aspirin 5 Grain, Low Dose Aspirin, Bufferin Arthritis, ULINE Aspirin, CAREALL Aspirin, Aspica (Aspirin), Aspirin 81mg, Dg Health Aspirin, Low Dose Miniprin, Angettes 75, Medi-first Aspirin, Aspirin pain relief, Basic Care Aspirin, Good Sense Aspirin, Aspirin 325mg, Aspirin 81, Health Mart Aspirin, Pain Relief Aspirin, Max strgh aspro clr, AsCurin Fast Action, Aspirin Pain reliver, Tri-buffered Aspirin, Aspirin 325, Aspirin 50 CT, Aspirin Low Strength, ASPIRN, Asprisol, Crane Safety Aspirin, Henry Schein Aspirin, Nu-seals 75, Travel Savvy Aspirin, Vazalore, Solves-aspirin Cherry, Adult Aspirin Regimen, Aspirin Bolus-240, Direct Safety Aspirin, Nu-seals cardio 75, Rapid Comfort Aspirin, Medique aspirn, Nu-seals 300, Nu-seals 600, Adult Chewable Aspirin, Aspirin Enteric Coated, Aspirin Extra Strength, Enteric Coated Aspirin, Extra Strength Aspirin, Advanced aspirin, Valumeds aspirin, Aspirin Delayed Release, Chewable Aspirin 81mg, Dye-Free Aspirin 81, Equate Aspirin Chewable, Physicians Care Aspirin, Adult Low Dose Aspirin, Aspirin Adult Low Dose, Low dose aspirin 81mg, Medique at Home Aspirin, Aspirin 81mg Dye-Free, Aspirin Regular Strength, Ecotrin Regular Strength, Leader Low Dose Aspirin, Medi-First Plus Aspirin, Medique Products Aspirin, Regular Strength Aspirin, Circle K Aspirin 325, Pharbest Aspirin 325mg, AspirinLow Dose Low Dose, Value PharmaPain Reliever, Meijer LOW DOSE Aspirin, Aspirin Chewable Low Dose, Aspirin Liquid Concentrate, Aspirin Low Dose Chewable, Chewable Aspirin Low Dose
- Cat. No.
- P-A026-001
- CAS
- 50-78-2
- Alternative CAS
- 493-53-8 (sodium salt)
- 70875-96-6 (zinc salt)
- 132-49-0 (magnesium salt)
- 69-46-5 (calcium salt)
- 552-98-7 (lithium salt)
- 25817-25-8 (potassium salt)
- 5749-67-7 (other salt)
- 62952-06-1 (lysine salt)
- 98201-60-6 (alternative CAS, same compound)
- 11126-35-5 (alternative CAS, same compound)
- 5054-56-8 (alternative CAS, same compound)
- Formula
- C9H8O4
- Molecular weight
- 180.16 g/mol
- Category
- Active ingredient (API)
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.
Pharmacopoeial standards available
The official European Pharmacopoeia standards for this molecule, supplied with EDQM documentation.
- AspirinBP 617
- Acetylsalicylic acid CRSEP A0200000
More products in the Acetylsalicylic Acid family
Pharmacopoeial impurityDL-lysine acetylsalicylate EP Impurity GCat. No. P-A026-003CAS 35436-74-9
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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
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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 287399-29-5
Isotopically labelledAcetylsalicylic Acid-d3Cat. No. P-A026-011CAS 921943-73-9Frequently 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.