7-bromo-6-chloro-1H-indole-3-sulfonic acid CAS 2231234-41-4
| CAS No. | 2231234-41-4 |
| Molecular Formula | C8H13BrClNO3S |
| Molecular Weight | 318.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 7-bromo-6-chloro-1H-indole-3-sulfonic acid is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
7-bromo-6-chloro-1H-indole-3-sulfonic acid (CAS 2231234-41-4), molecular formula C8H13BrClNO3S and molecular weight 318.62 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 7-bromo-6-chloro-1H-indole-3-sulfonic acid (C8H13BrClNO3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 318.62 g/mol, it falls into the moderately-high-molecular-weight range. 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.
As a certified reference material (CRM), 7-bromo-6-chloro-1H-indole-3-sulfonic acid 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.
Physical & Chemical Properties
| Molecular Formula | C8H13BrClNO3S |
| Molecular Weight | 318.62 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 | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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- 2-(2-(1H-indol-5-yl)phenyl)acetic acid (CAS 886363-19-5)
- Semaglutide Impurity 15 (CAS CATO-C4X-222615)
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