1-Oxo-2,3-dihydro-1H-indene-5-sulfonyl chloride CAS 61565-36-4
| CAS No. | 61565-36-4 |
| Molecular Formula | C9H7ClO3S |
| Molecular Weight | 230.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-Oxo-2,3-dihydro-1H-indene-5-sulfonyl chloride (CAS 61565-36-4), molecular formula C9H7ClO3S and molecular weight 230.67 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-Oxo-2,3-dihydro-1H-indene-5-sulfonyl chloride (C9H7ClO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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 230.67 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H7ClO3S |
| Molecular Weight | 230.67 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.) | 1974 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Oxo Standards
- 3-Oxo-2,3-dihydro-1H-indene-5-sulfonyl chloride (CAS 255895-78-4)
- (2,3-Dihydro-1H-inden-2-yl)methanesulfonyl chloride (CAS 348080-86-4)
- 2,3-Dihydro-1h-inden-5-ylmethanesulfonyl chloride (CAS 935534-04-6)
- (1-(2,3-Dihydro-1H-inden-2-yl)piperidin-4-yl)methanamine (CAS 1281222-44-3)
- 4-(2,3-dihydro-1H-inden-5-yl)-5-methyl-1,3-thiazol-2-amine (CAS 879350-77-3)
- 3’,4’-dihydro-1’H-spiro[cycloheptane-1,2’-quinazoline]-4’-one (CAS 101069-64-1)
- (2,3-Dihydro-1H-inden-5-yl)(piperazin-1-yl)methanone (CAS 1016519-39-3)
- 1-[2-(2,3-Dihydro-1H-indol-3-yl)ethyl]-2-pyrrolidinone (CAS 1016794-28-7)
Recommended Standards
- 1-Methyl-1h-1,3-benzodiazole-5-sulfonyl chloride (CAS 923034-28-0)
- 2-((2-Chlorobenzoyl)thio)acetic acid (CAS 931374-37-7)
- (1-((2-Chlorothiazol-5-yl)methyl)-1H-1,2,3-triazol-4-yl)methanol (CAS 952183-33-4)
- 2-Chloro-5-fluoro-4-(4-methylpiperazin-1-yl)pyrimidine (CAS 385390-91-0)
- 9-Benzylcarbazole-3,6-dicarboxaldehyde (CAS 200698-05-1)
- 4-(4-Fluorophenyl)-1-methylpiperidin-4-ol (CAS 36882-06-1)
- 1-(4,5-Dihydro-1H-pyrrol-2-yl)ethanone (CAS 1314926-27-6)
- 3-(((1-Methylcyclobutyl)methyl)amino)thietane 1,1-dioxide (CAS 1863950-23-5)
- Quiflapon, >98% (HPLC) (CAS 136668-42-3)
- 2-Chloro-4-methylsulfonyl-1-nitrobenzene (CAS 60854-81-1)
- 3-(1-(tert-Butyl)-1H-pyrazol-5-yl)pyridine (CAS 1269291-19-1)
- N-(2-Bromophenyl)-2-((5-(pyridin-4-yl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 477318-72-2)
- (4-Bromo-2,3,5-trifluorophenyl)methanamine (CAS 1893028-75-5)
- Tau Peptide (268-282) trifluoroacetate salt (CAS 330456-37-6)
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