5-Methoxynaphthalene-1-sulfonyl chloride CAS 56875-56-0
| CAS No. | 56875-56-0 |
| Molecular Formula | C11H9ClO3S |
| Molecular Weight | 256.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5-Methoxynaphthalene-1-sulfonyl chloride (C11H9ClO3S) 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 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 256.71 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
5-Methoxynaphthalene-1-sulfonyl chloride (CAS 56875-56-0) is a high-purity analytical reference standard with the molecular formula C11H9ClO3S and a molecular weight of 256.71 g/mol.
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), 5-Methoxynaphthalene-1-sulfonyl chloride 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 | C11H9ClO3S |
| Molecular Weight | 256.71 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methoxynaphthalene Standards
- 1-Methoxynaphthalene-2-sulfonyl chloride (CAS 56875-52-6)
- 4-Methoxynaphthalene-1-sulfonyl chloride (CAS 56875-55-9)
- 6-Methoxynaphthalene-1-sulfonyl chloride (CAS 66413-57-8)
- 6-Methoxynaphthalene-2-sulfonyl chloride (CAS 56875-59-3)
- 7-Methoxynaphthalene-1-sulfonyl chloride (CAS 56875-61-7)
- 7-Methoxynaphthalene-2-sulfonyl chloride (CAS 56875-60-6)
- Sodium 6-methoxynaphthalene-2-sulfonate (CAS 149353-39-9)
- 1-Benzyl-5-methoxynaphthalene (CAS 690232-00-9)
Recommended Standards
- 5-Amino-2-(((5-chlorothiophen-2-yl)methyl)amino)pyrimidin-4(1H)-one (CAS 77961-44-5)
- 6-Acetyl-2-(chloromethyl)-5-methyl-3h,4h-thieno[2,3-d]pyrimidin-4-one (CAS 730976-52-0)
- 4-Chloro-5-((furan-2-ylmethyl)thio)-2-methylpyridazin-3(2H)-one (CAS 465514-01-6)
- 4-Amino-5-(4-chlorophenoxymethyl)-4h-1,2,4-triazole-3-thiol (CAS 4413-43-8)
- O-(tert-butyl)serine (CAS 17083-25-9)
- Ethyl 4-cyanopiperidine-4-carboxylate hydrochloride (CAS 123730-64-3)
- 2-(2-Bromo-5-(difluoromethyl)pyridin-4-yl)acetic acid (CAS 1806765-56-9)
- 2-(1-Methyl-1H-pyrazol-5-yl)acetic acid (CAS 1071814-44-2)
- trans-3-fluoro-2-methyl-azetidine;hydrochloride (CAS 2231664-15-4)
- 3-Methyl-3-buten-2-one (stabilized with HQ) (CAS 814-78-8)
- 3-Pyrroline Hydrochloride (CAS 63468-63-3)
- 3,4-bis(4-methoxyphenyl)-1H-pyrazole (CAS 1007072-64-1)
- 4-(2-Hydroxyethoxy)picolinonitrile (CAS 1341432-15-2)
- Fibrinogen-Binding Peptide (CAS 137235-80-4)
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