2-Oxochromane-6-sulfonyl chloride CAS 600166-90-3
| CAS No. | 600166-90-3 |
| Molecular Formula | C9H7ClO4S |
| Molecular Weight | 246.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Oxochromane-6-sulfonyl chloride (CAS 600166-90-3), molecular formula C9H7ClO4S and molecular weight 246.67 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2-Oxochromane-6-sulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 246.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 2-Oxochromane-6-sulfonyl chloride 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 | C9H7ClO4S |
| Molecular Weight | 246.67 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.) | 1985 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Oxochromane Standards
- Ethyl 4-oxochromane-2-carboxylate (CAS 41978-33-0)
- 7-Methyl-4-oxochromane-2-carboxylic acid (CAS 51048-01-2)
- Methyl 3-oxochromane-7-carboxylate (CAS 944899-66-5)
- Methyl 4-oxochromane-6-carboxylate (CAS 41118-19-8)
- Methyl 4-oxochromane-8-carboxylate (CAS 91344-89-7)
- 4-Oxochromane-6-carboxylic acid (CAS 90921-08-7)
- 4-Oxochromane-7-carbonitrile (CAS 214759-65-6)
- 4-Oxochromane-8-carbonitrile (CAS 911826-33-0)
Recommended Standards
- 2-Chloro-6-(4-fluorophenyl)-4-methylnicotinonitrile (CAS 943117-82-6)
- 4-oxo-3,4-dihydro-2H-1-benzopyran-6-sulfonyl chloride (CAS 503470-40-4)
- 2-(Chloromethyl)-1,3-benzoxazole-5-sulfonamide (CAS 936074-39-4)
- 5,7-Dimethyl-[1,2,4]triazolo[1,5-a]pyrimidine-2-sulfonyl chloride (CAS 98169-74-5)
- (2-(Dimethyl(4-morpholinophenyl)silyl)phenyl)methanol (CAS 1217863-17-6)
- Bis(sulphosuccinimidyl)suberate (CAS 87067-99-0)
- N,N,3,5-Tetramethyl-1H-pyrazole-4-sulfonamide hydrochloride (CAS 2126159-97-3)
- Ethyl 6-bromo-4-chloro-7-ethoxyquinoline-3-carboxylate (CAS 953803-81-1)
- PF 06447475 (CAS 1527473-33-1)
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