Sodium 2,3-dioxoindoline-5-sulfonate dihydrate CAS 207399-16-4
| CAS No. | 207399-16-4 |
| Molecular Formula | C8H4NO5S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Sodium 2,3-dioxoindoline-5-sulfonate dihydrate 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.
Sodium 2,3-dioxoindoline-5-sulfonate dihydrate (CAS 207399-16-4), molecular formula C8H4NO5SNaH2O and molecular weight 267.19 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H4NO5SNaH2O, Sodium 2,3-dioxoindoline-5-sulfonate dihydrate contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 267.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C8H4NO5S Na 2*H2O |
| Molecular Weight | 267.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2016 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Sodium Standards
- Methyl 2,3-dioxoindoline-5-carboxylate (CAS 101460-85-9)
- 2,3-Dioxoindoline-6-carboxylic acid (CAS 101870-10-4)
- Methyl 2,3-dioxoindoline-7-carboxylate (CAS 103030-10-0)
- 2,3-Dioxoindoline-6-carbaldehyde (CAS 115542-14-8)
- 2,3-Dioxoindoline-4-carbonitrile (CAS 1165892-60-3)
- Ethyl 2,3-dioxoindoline-6-carboxylate (CAS 1263282-64-9)
- Methyl 2,3-dioxoindoline-4-carboxylate (CAS 153072-43-6)
- 1-Methyl-2,3-dioxoindoline-4-carboxylic acid (CAS 1644629-18-4)
Recommended Standards
- Ethyl (1R,3S)-3-aminocyclohexane-1-carboxylate (CAS 1259366-98-7)
- 2-((6-Acetamidopyridazin-3-yl)thio)-N-(2-methoxyphenethyl)acetamide (CAS 1021057-00-0)
- 3-(3-Hydroxyphenyl)-3,4-dihydrobenzo[f]quinolin-1(2H)-one (CAS 333759-52-7)
- Benzyl (2R,3S)-3-amino-2-methylpiperidine-1-carboxylate (CAS 1932572-89-8)
- 5-Phenylisoxazol-3-amine hydrochloride (CAS 93113-35-0)
- 3-(1-Methylpiperidin-4-yl)-1H-indazole (CAS 98294-53-2)
- 1,5-Dimethyl-1H-tetrazole (CAS 5144-11-6)
- 2-(6-Bromo-2-methoxynaphthalen-1-yl)acetonitrile (CAS 92643-17-9)
- Ammoxetine Impurity 18 (CAS CATO-C4X-335718)
- Peptide Impurity 64 (CAS CATO-CPTD788964)
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