Desmethyl Norflurazon CAS 23576-24-1
| CAS No. | 23576-24-1 |
| Molecular Formula | C11H7ClF3N3O |
| Molecular Weight | 289.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Desmethyl Norflurazon (CAS 23576-24-1) is a high-purity analytical reference standard with the molecular formula C11H7ClF3N3O and a molecular weight of 289.64 g/mol.
Based on its molecular formula C11H7ClF3N3O, Desmethyl Norflurazon contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 289.64 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Desmethyl Norflurazon meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H7ClF3N3O |
| Molecular Weight | 289.64 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Desmethyl Standards
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Recommended Standards
- N-(4-Chlorophenyl)-6-(Trifluoromethyl)-1,3,5-Triazine-2,4-Diamine (CAS 53387-70-5)
- 4-chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine (CAS 128276-98-2)
- Methyl 4-chloro-6-(trifluoromethyl)quinoline-2-carboxylate (CAS 887267-67-6)
- [(7-Chloro-4-nitro-2,1,3-benzoxadiazol-5-yl)thio]acetic acid (CAS 442531-32-0)
- 4-Methyl-N-(1H-pyrazol-3-yl)benzenesulfonamide (CAS 3161-65-7)
- N-Benzylfuran-2-carboxamide (CAS 10354-48-0)
- 2-([1,1'-Biphenyl]-3-yl)-4-([1,1'-biphenyl]-4-yl)-6-chloro-1,3,5-triazine (CAS 1621467-35-3)
- Mal-PEG5-C2-NH2 (hydrochloride) (CAS 2454216-21-6)
- 4,5-dichloroimidazole (CAS 15965-30-7)
- 4-Chloro-N-methylnicotinamide (CAS 62458-78-0)
- Propofol Impurity 28 (CAS 40388-51-0)
- 2-(5-Methyl-1,2,4-oxadiazol-3-yl)morpholine hydrochloride (CAS 1443979-69-8)
- tert-Butyl 1,7-diazaspiro[4.5]decane-7-carboxylate oxalate (CAS 1187932-79-1)
- Acetyl Hexapeptide-39 (CAS 1382088-38-1)
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