Acetaminophen Impurity 39 CAS 51-00-3
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 51-00-3 |
| Molecular Formula | C11H11NO5 |
| Molecular Weight | 237.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Acetaminophen Impurity 39 (CAS 51-00-3) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C11H11NO5. Molecular weight: 237.21 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C11H11NO5 |
| Molecular Weight | 237.21 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, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Acetaminophen Standards
- Acetaminophen Impurity 40 (CAS 483303-97-5)
- 4-Acetaminophen-D3 Sulfate (CAS 1020718-78-8)
- Acetaminophen Impurity 39 (CAS 93629-82-4)
- 4-Acetaminophen Sulfate (CAS 10066-90-7)
- Acetaminophen Impurity 42 (CAS 1075742-56-1)
- Acetaminophen Impurity 41 (CAS CATO-C4X-121141)
- Acetaminophen-cysteine (CAS 64014-06-8)
- Acetaminophen Impurity 21 (CAS 801215-24-7)
Recommended Standards
- Fluconazole EP Impurity G (R-Isomer) (CAS CATO-C4X-101965)
- Metoclopramide Impurity 89 (CAS CATO-C4X-141589)
- 5,5-diallyl-1-nitrosopyrimidine-2,4,6(1H,3H,5H)-trione (CAS CATO-C3D-26178)
- Belumosudil Impurity 64 (CAS CATO-C4X-298864)
- Linezolid Impurity 31 (CAS CATO-C4X-107331)
- Methyl 4-hydroxy-6,7-dimethoxy-2-oxo-1,2-dihydroquinoline-3-carboxylate (CAS 243841-56-7)
- benzyl-4-iodo-1H-pyrazole (CAS 50877-42-4)
- N-butyl-N-phenethylaniline (CAS 115419-50-6)
- 3,4,5-Trimethoxybenzoic Acid 2-Diethylaminoethyl Ester Hydrochloride (CAS 4304-21-6)
- [2-31]-Semaglutide C (x TFA Salt) (CAS CATO-C4X-2226118)
Why CATO?
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