2-Chloro-6-ethoxy-4-formylphenyl benzenesulfonate CAS 473828-25-0
| CAS No. | 473828-25-0 |
| Molecular Formula | C15H13ClO5S |
| Molecular Weight | 340.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Chloro-6-ethoxy-4-formylphenyl benzenesulfonate (CAS 473828-25-0), molecular formula C15H13ClO5S and molecular weight 340.78 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Chloro-6-ethoxy-4-formylphenyl benzenesulfonate (C15H13ClO5S) contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 340.78 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 2-Chloro-6-ethoxy-4-formylphenyl benzenesulfonate 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 | C15H13ClO5S |
| Molecular Weight | 340.78 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-4-formyl-6-methoxyphenyl 4-methylbenzenesulfonate (CAS 431910-60-0)
- 4-Chloro-2-[4-(difluoromethoxy)phenyl]-5,6-dimethylthieno[2,3-d]pyrimidine (CAS 885460-87-7)
- 4-Chloro-N-(2,4-dimethyl-phenyl)-3-nitro-benzenesulfonamide (CAS 292867-27-7)
- 4-Chloro-N-ethyl-3-nitro-N-phenylbenzene-1-sulfonamide (CAS 380335-72-8)
- 104246-34-6 3-Chloro-N-{4-[(pyrimidin-2-ylamino)sulfonyl]phenyl}propanamide MFCD03392207 (CAS 104246-34-6)
- N-((5-Chloro-2,6-dimethylpyrimidin-4-yl)carbamoyl)benzenesulfonamide (CAS 119271-20-4)
- 2-Chloro-N-(4-(N-(4-methylpyrimidin-2-yl)sulfamoyl)phenyl)acetamide (CAS 64877-35-6)
- 2-Chloro-N-{2-[(1,3-dimethyl-4-nitro-1H-pyrazol-5-yl)thio]phenyl}acetamide (CAS 648859-23-8)
Recommended Standards
- 2-Ethoxy-4-formylphenyl 4-chlorobenzenesulfonate (CAS 432014-73-8)
- 2-(Pyridin-2-yl)ethyl (4-(chlorosulfonyl)phenyl)carbamate (CAS 680618-27-3)
- 2-Ethoxy-5-(nicotinamido)benzene-1-sulfonyl chloride (CAS 680618-09-1)
- 2-(Benzylamino)-4-chloro-5-sulfamoylbenzoic acid (CAS 2114-68-3)
- 2-(But-3-en-2-yloxy)isoindoline-1,3-dione (CAS 329698-13-7)
- 4-(3,4-dimethoxyphenyl)-1,2,3,6-tetrahydropyridine hydrochloride (CAS 1427379-41-6)
- 6-Amino-5-hydroxy-1-oxo-2,3-dihydro-1H-indene-4-carbonitrile (CAS 2622236-17-1)
- 1-(Aminomethyl)-4,4-difluorocyclohexane Hydrochloride (CAS 809273-65-2)
- 2-(1-Ethyl-1,4,5,6-tetrahydropyrimidin-2-yl)benzo[d]oxazole (CAS 757131-67-2)
- 5-Cyclopropyl-N-((5-(furan-2-carbonyl)thiophen-2-yl)methyl)isoxazole-3-carboxamide (CAS 1797613-36-5)
- 4-Bromo-1-(dibromomethyl)-2-fluorobenzene (CAS 295803-26-8)
- N-Ethyl-N-(3-nitropyridin-2-yl)methanesulfonamide (CAS 1820741-36-3)
- 2-Amino-5,7-dichloro-1,8-naphthyridine (CAS 131998-24-8)
- Human glucagon CRS (CAS 9007-92-5)
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