1-Chloro-3,5-dimethoxy-2-nitrobenzene CAS 90-25-5
| CAS No. | 90-25-5 |
| Molecular Formula | C9H15N2O13P3 |
| Molecular Weight | 452.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 452.14 g/mol gives 1-Chloro-3,5-dimethoxy-2-nitrobenzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-Chloro-3,5-dimethoxy-2-nitrobenzene (CAS 90-25-5), molecular formula C9H15N2O13P3 and molecular weight 452.14 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carbohydrate-derived structure, an amide group, a phosphate ester group, 1-Chloro-3,5-dimethoxy-2-nitrobenzene is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 452.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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.
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 | C9H15N2O13P3 |
| Molecular Weight | 452.14 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 3-Chloro-N-(4-chlorophenyl)-5-(trifluoromethyl)-N-[2-(trifluoromethyl)pyridin-4-yl]pyridin-2-amine (CAS 339020-16-5)
- 3-Chloro-2-{2-[5-(4-chlorophenyl)-1,3,4-oxadiazol-2-yl]phenoxy}-5-(trifluoromethyl)pyridine (CAS 303997-37-7)
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Recommended Standards
- Methyl 3,4-difluoro-2-((2-fluoro-4-iodophenyl)amino)-5-nitrobenzoate (CAS 836602-27-8)
- Lithium ((2S,5R)-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl triphosphate (CAS 84445-38-5)
- Perfluoroheptanesulfonyl fluoride (CAS 335-71-7)
- Lifitegrast Impurity 166 (CAS CATO-C4X-2409166)
- 1-Methyl-3-(piperidin-4-yl)imidazolidin-2-one hydrochloride (CAS 1354951-06-6)
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- 1-(6-(methylamino)pyridin-3-yl)ethan-1-one (CAS 856014-63-6)
- 4-methanesulfonylbutan-1-amine hydrochloride (CAS 50742-34-2)
- (R)-SunPhos (CAS 765312-57-0)
- 1-Isobutyl-1,7-diazaspiro[4.4]Nonane (CAS 1422061-75-3)
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- 1-Acetyl-2-isobutyl-2,5-dihydro-1H-pyrrole-2-carboxylic acid (CAS 203051-17-6)
- (S)-tert-Butyl (1-(3-fluorophenyl)-3-hydroxypropan-2-yl)carbamate (CAS 944470-56-8)
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