2-((4-Chlorophenyl)thio)-5-nitrobenzaldehyde CAS 42191-01-5
| CAS No. | 42191-01-5 |
| Molecular Formula | C13H8ClNO3S |
| Molecular Weight | 293.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-((4-Chlorophenyl)thio)-5-nitrobenzaldehyde 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.
2-((4-Chlorophenyl)thio)-5-nitrobenzaldehyde (CAS 42191-01-5) is a high-purity analytical reference standard with the molecular formula C13H8ClNO3S and a molecular weight of 293.73 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 2-((4-Chlorophenyl)thio)-5-nitrobenzaldehyde is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 293.73 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C13H8ClNO3S |
| Molecular Weight | 293.73 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 3-Phenyl-2H-pyrano[2,3-b]quinolin-2-one (CAS 112584-02-8)
- tert-butyl N-[2-(piperidin-4-yl)oxan-4-yl]carbamate (CAS 1909348-40-8)
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