6-Chloro-7-methoxy-1H-indole-3-sulfonyl chloride CAS 2231234-35-6
| CAS No. | 2231234-35-6 |
| Molecular Formula | C9H7Cl2NO3S |
| Molecular Weight | 280.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 6-Chloro-7-methoxy-1H-indole-3-sulfonyl chloride (C9H7Cl2NO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 280.13 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
6-Chloro-7-methoxy-1H-indole-3-sulfonyl chloride (CAS 2231234-35-6), molecular formula C9H7Cl2NO3S and molecular weight 280.13 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C9H7Cl2NO3S |
| Molecular Weight | 280.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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Recommended Standards
- 6-bromo-8-fluoro-quinoline-3-carboxylic acid (CAS 2306264-10-6)
- 8-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)isoquinoline-3-carbonitrile (CAS 2378308-06-4)
- 3-(3,4-Dichlorophenyl)thiazolidin-4-one 1,1-dioxide (CAS 338779-15-0)
- methyl 1-bromo-7-fluoro-6,8-dihydro-5H-indolizine-7-carboxylate (CAS 2755402-02-7)
- 4-Chloro-3-fluoro-3'-iodobenzophenone (CAS 951890-68-9)
- 4-Methyl-2-(N,N-dimethylaminomethyl)bromobenzene (CAS 27561-52-0)
- 5,10,15,20-Tetrakis[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-21H,23H-porphine (CAS 1332748-00-1)
- 5-methoxy-1H-pyrrolo[3,2-b]pyridine-3-carboxylic acid (CAS 1190319-23-3)
- Etrasimod Impurity 68 (CAS CATO-C4X-321468)
- 9-(Naphthalen-1-yl)-10-phenylanthracene (CAS 63018-93-9)
- 1-[2-(3-Benzyl-4-oxo-3,4-dihydro-quinazolin-2-ylsulfanyl)-acetyl]-piperidine-4-carboxylic acid (CAS 735336-28-4)
- 2-Bromo-4-methylbenzohydrazide (CAS 1022059-55-7)
- (S)-2-Benzylmorpholine (CAS 947687-18-5)
- Semaglutide impurity 39 (CAS CATO-C4X-222639)
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