Acetaminophen Impurity 40 CAS 483303-97-5
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 483303-97-5 |
| Molecular Formula | C12H15NO4 |
| Molecular Weight | 237.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Acetaminophen Impurity 40 (CAS 483303-97-5) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C12H15NO4. Molecular weight: 237.25 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C12H15NO4 |
| Molecular Weight | 237.25 g/mol |
| Appearance | Off-white to pale 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Acetaminophen Standards
- Acetaminophen Impurity 39 (CAS 51-00-3)
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- Acetaminophen Impurity 42 (CAS 1075742-56-1)
- 4-Acetaminophen Sulfate (CAS 10066-90-7)
- Acetaminophen Impurity 41 (CAS CATO-C4X-121141)
- Acetaminophen-cysteine (CAS 64014-06-8)
- Acetaminophen Impurity 21 (CAS 801215-24-7)
Recommended Standards
- Febuxostat Impurity 40 (CAS CATO-C4X-116240)
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- Hydrochlorothiazide Impurity 26 (CAS CATO-C4X-117726)
- Losartan Impurity 28 (CAS 124750-67-0)
- 4-(Bromomethyl)-5-methoxy-3,3'-bipyridine (CAS 1227494-50-9)
- Ethyl 3-amino-1-(2,2,2-trifluoroethyl)-1H-pyrazole-5-carboxylate (CAS 1328640-51-2)
- 6-(Difluoromethyl)-2-mercapto-4-(2-methoxyphenyl)nicotinonitrile (CAS 937600-69-6)
- 56792-59-7 27-hydroxy cholestenone (CAS 56792-59-7)
- Semaglutide impurity 57 (CAS 2773558-06-6)
Why CATO?
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