Noscapine Impurity 5 CAS 519-05-1
| CAS No. | 519-05-1 |
| Molecular Formula | C10H10O5 |
| Molecular Weight | 210.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C10H10O5, Noscapine Impurity 5 contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 210.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Noscapine Impurity 5 (CAS 519-05-1), molecular formula C10H10O5 and molecular weight 210.18 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H10O5 |
| Molecular Weight | 210.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Noscapine Standards
- Noscapine Impurity 8 (CAS 64179-42-6)
- Noscapine Impurity 3 (CAS 550-10-7)
- Noscapine impurity 3 (CAS 82-54-2)
- Noscapine impurity N1 (CAS 92621-03-9)
- Noscapine impurity 4 (CAS 54383-36-7)
- Noscapine Impurity 2 (Cotarninium Cation) (CAS 20276-45-3)
- Noscapine N-Oxide Hydrochloride (CAS 201015-28-3)
- Noscapine Hydrochloride (CAS 912-60-7)
Recommended Standards
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- Fmoc-D-Val-OPfp (CAS 125043-10-9)
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- (trans-4-Hydroxymethylcyclohexyl)carbamic Acid tert-Butyl Ester (CAS 239074-29-4)
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- 2-Amino-N,N-dimethylnicotinamide (CAS 1250984-20-3)
- 4-Cinnamamidobenzoic acid (CAS 54057-59-9)
- Tirzepatide Impurity 17 (CAS CATO-C4X-324017)
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