Dimethachlor-ethane sulfonic acid (ESA) sodium CAS 1231710-75-0
| CAS No. | 1231710-75-0 |
| Molecular Formula | C13H18NO5S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Dimethachlor-ethane sulfonic acid (ESA) sodium (C13H18NO5SNa) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
CATO supplies Dimethachlor-ethane sulfonic acid (ESA) sodium (CAS 1231710-75-0), a certified reference material (molecular formula C13H18NO5SNa, MW 323.34 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C13H18NO5S Na |
| Molecular Weight | 323.34 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dimethachlor Standards
- Dimethachlor-oxalamic acid (OA) (CAS 1086384-49-7)
- Dimethachlor-Metabolite SYN 530561 (CAS 1138220-18-4)
- Dimethachlor Metabolite Syn 528702 Sodium Salt (CAS 1228182-52-2)
- Dimethachlor-deschloro (CAS 1231710-71-6)
- Dimethachlor (CAS 50563-36-5)
- Dimethachlor Ethane Sulfonic Acid (Esa) Sodium Salt (CAS CATO-CCPD101220)
Recommended Standards
- (E)-6-(2,6-dimethylmorpholino)nicotinaldehyde O-(2,6-dichlorobenzyl) oxime (CAS 866040-98-4)
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- Ethyl 4-(p-tolylcarbamothioyl)piperazine-1-carboxylate (CAS 431913-97-2)
- 3-(4-Methoxybutyl)pyridin-2-amine (CAS 1342119-06-5)
- 2-(3-Acetyl-5-hydroxyphenyl)acetic acid (CAS 1393552-57-2)
- (S)-Rasagiline HCl (CAS 136236-50-5)
- Rizatriptan Impurity 11 (CAS 119192-10-8)
- (2R,4S)-1-(tert-Butoxycarbonyl)-4-hydroxypiperidine-2-carboxylic acid (CAS 1212688-40-8)
- 2-Chloro-3-(chloromethyl)-8-methylquinoline (CAS 948291-50-7)
- KALA Amphipathic Peptide (CAS 187987-64-0)
Why CATO?
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