Sulfo EGS CAS 142702-32-7
| CAS No. | 142702-32-7 |
| Molecular Formula | C18H18N2Na2O18S2 |
| Molecular Weight | 660.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 660.45 g/mol gives Sulfo EGS distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Sulfo EGS (CAS 142702-32-7), molecular formula C18H18N2Na2O18S2 and molecular weight 660.45 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Sulfo EGS (C18H18N2Na2O18S2) is characterized by a flavonoid core, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Sulfo EGS under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H18N2Na2O18S2 |
| Molecular Weight | 660.45 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Sulfo Standards
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- Sulfo Rhodamine Methanethiosulfonate (CAS 386229-71-6)
- Sulfo Rhodamine Amidoethyl Mercaptan (CAS 1244034-02-3)
- Sulfo-cyanine3 azide (sodium) (CAS 2055138-89-9)
- Sulfo-Cy5-N3 (CAS 1481447-40-8)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com