NAS-181 CAS 1217474-40-2
| CAS No. | 1217474-40-2 |
| Molecular Formula | C19H26N2O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies NAS-181 (CAS 1217474-40-2), a certified reference material (molecular formula C19H26N2O4CH4O3S, MW 442.53 g/mol) for analytical method development and quality control.
Structurally, NAS-181 (C19H26N2O4CH4O3S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 442.53 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C19H26N2O4 2*CH4O3S |
| Molecular Weight | 442.53 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- Methyl 2-(2,5-difluorophenyl)propanoate (CAS 1339462-54-2)
- 3,8-diazabicyclo[3.2.1]octan-2-one (CAS 22315-17-9)
- 5-Bromo-2-(1-(trifluoromethyl)cyclopropyl)pyrimidine (CAS 2168710-53-8)
- 1-[1-(4-bromophenyl)propyl]piperazine (CAS 512164-50-0)
- Pemafibrate Impurity 40 (CAS CATO-C4X-290340)
- 2-Chlorooxazolo[4,5-c]pyridine (CAS 1509638-12-3)
- 3-[(2-Isopropyl-5-methylphenoxy)methyl]piperidine (CAS 946680-16-6)
- 5-bromo-3-methoxy-2-(trifluoromethyl)pyridine (CAS 944805-61-2)
- Dalfampridine Impurity 2 (CAS 4589-32-6)
- Peptide Impurity 11 X TFA Salt (CAS CATO-CPTD788811)
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