N-Nitroso Caffeine EP Impurity E CAS 145438-96-6
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 145438-96-6 |
| Molecular Formula | C7H11N5O2 |
| Molecular Weight | 197.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
N-Nitroso Caffeine EP Impurity E (CAS 145438-96-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H11N5O2. Molecular weight: 197.19 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H11N5O2 |
| Molecular Weight | 197.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 5 |
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Recommended Standards
- 2-(3-Hydroxyphenyl)pyrimidine-5-carbonitrile (CAS 1447606-39-4)
- 1-((3-Methyloxetan-3-yl)methyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1461707-21-0)
- 6-(1-Piperazinyl)-1,3,5-triazine-2,4(1H,3H)-dione (CAS 144742-32-5)
- Budesonide Impurity 56 (CAS CATO-C4X-138956)
- Vildagliptin Impurity 22 (CAS CATO-C4X-110022)
- 3-Methyl-2-Nitrophenol (CAS 4920-77-8)
- Methyl 1-amino-2-methylcyclopentane-1-carboxylate (CAS 1490034-55-3)
- (3-Cyanobenzyl)glycine (CAS 926252-79-1)
- (3-(Tert-butoxy)-2',4',6'-triisopropyl-6-methoxy-[1,1'-biphenyl]-2-yl)dicyclohexylphosphane (CAS 2489243-28-7)
- Valosin Peptide (VQY), porcine (CAS 99510-37-9)
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