Aspirin Impurity 14 CAS 85531-25-5
| CAS No. | 85531-25-5 |
| Molecular Formula | C15H12O5 |
| Molecular Weight | 272.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO supplies Aspirin Impurity 14 (CAS 85531-25-5), a pharmacopoeial impurity reference standard (molecular formula C15H12O5, MW 272.25 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C15H12O5, Aspirin Impurity 14 contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 272.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Aspirin Impurity 14 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C15H12O5 |
| Molecular Weight | 272.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
Related Aspirin Standards
Recommended Standards
- (S)-Naringenin (CAS 480-41-1)
- Propofol impurity 62 (CAS 110007-31-3)
- Tri-O-acetyl-D-glucal (CAS 2873-29-2)
- Paraben Impurity 5 (CAS CATO-C4X-25695)
- Epirubicin Impurity 9 (CAS CATO-C4X-11169)
- Brexpiprazole Impurity 4 (CAS 70500-72-0)
- Plerixafor Impurity 15 (CAS CATO-C4X-113315)
- 2-(Morpholin-3-yl)ethan-1-ol hydrochloride (CAS 1628617-14-0)
- 4-(Methylsulfonyl)-5-nitro-1H-imidazole (CAS 110299-87-1)
- N1-Nitroso Mitoxantrone (CAS CATO-C4X-103412)
- 3-Chloro-1-(3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-6-hydroxypyridazin-4(1H)-one (CAS 87008-90-0)
- 3-phenyl-1-(pyridin-2-yl)propan-1-one (CAS 54313-85-8)
- (R)-tert-Butyl 2-(2-methoxy-2-oxoethyl)pyrrolidine-1-carboxylate (CAS 132482-05-4)
- Semaglutide impurity 29 (CAS 1188328-22-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com