1,2,3,3-Tetramethyl-5-sulfo-3H-indol-1-ium iodide CAS 644979-02-2
| CAS No. | 644979-02-2 |
| Molecular Formula | C12H16NO3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 381.22 g/mol gives 1,2,3,3-Tetramethyl-5-sulfo-3H-indol-1-ium iodide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1,2,3,3-Tetramethyl-5-sulfo-3H-indol-1-ium iodide (CAS 644979-02-2), molecular formula C12H16NO3SI and molecular weight 381.22 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, iodine substitution, 1,2,3,3-Tetramethyl-5-sulfo-3H-indol-1-ium iodide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 381.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 1,2,3,3-Tetramethyl-5-sulfo-3H-indol-1-ium iodide 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 | C12H16NO3S I |
| Molecular Weight | 381.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Nemonoxacin Impurity 71 (CAS 1203651-06-2)
- 3-(Benzylamino)propanoic acid (CAS 5426-62-0)
- N,N-diethyl-4-hydroxybenzamide (CAS 79119-31-6)
- Peptide Impurity (CAS CATO-CPTD788810)
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