N,N'-(4,5-Dichloro-1,2-phenylene)bis(4-methylbenzenesulfonamide) CAS 335334-06-0
| CAS No. | 335334-06-0 |
| Molecular Formula | C20H18Cl2N2O4S2 |
| Molecular Weight | 485.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), N,N'-(4,5-Dichloro-1,2-phenylene)bis(4-methylbenzenesulfonamide) 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.
N,N'-(4,5-Dichloro-1,2-phenylene)bis(4-methylbenzenesulfonamide) (CAS 335334-06-0), molecular formula C20H18Cl2N2O4S2 and molecular weight 485.40 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H18Cl2N2O4S2, N,N'-(4,5-Dichloro-1,2-phenylene)bis(4-methylbenzenesulfonamide) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 485.40 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H18Cl2N2O4S2 |
| Molecular Weight | 485.40 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Recommended Standards
- methyl (2S,3S,4S,5R,6S)-3,4,5-triacetoxy-6-[4-(hydroxymethyl)-2-nitro-phenoxy]tetrahydropyran-2-carboxylate (CAS 148579-94-6)
- Th26SnB (CAS 886746-54-9)
- 4-Bromo-N-((4-ethyl-5-((3-fluorobenzyl)thio)-4H-1,2,4-triazol-3-yl)methyl)benzenesulfonamide (CAS 338794-60-8)
- Th8SnB (CAS 504441-11-6)
- methyl 5-(iodomethyl)-1,2-oxazole-4-carboxylate (CAS 1803581-38-5)
- 1-[(3-Methylphenyl)sulfanyl]propan-2-one (CAS 16798-94-0)
- Dimethyl 4,4'-(perfluoropropane-2,2-diyl)dibenzoate (CAS 32636-85-4)
- 8-Azabicyclo[3.2.1]octan-2-one (CAS 958812-40-3)
- 4-Acetoxy-3',5'-dimethoxybenzophenone (CAS 890100-27-3)
- {2-Methoxy-4-[4-oxo-2-thioxo-3-(3-trifluoromethyl-phenyl)-thiazolidin-5-ylidenemethyl]-phenoxy}-acetic acid (CAS 292173-91-2)
- 4-Iodo-1H-pyrrolo[3,2-c]pyridine (CAS 1312368-88-9)
- 2-Fluorofuro[3,4-b]pyridine-5,7-dione (CAS 168546-46-1)
- 2-Chlorobut-2-enoic acid (CAS 600-13-5)
- Atrial Natriuretic Peptide (ANP)(1-28) Alpha (Human, Ovine, Canine) (CAS 91917-63-4)
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