3-Chloronaphthalene-2-sulfonyl chloride CAS 3623-96-9
| CAS No. | 3623-96-9 |
| Molecular Formula | C10H6Cl2O2S |
| Molecular Weight | 261.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Chloronaphthalene-2-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.
3-Chloronaphthalene-2-sulfonyl chloride (CAS 3623-96-9) is a high-purity analytical reference standard with the molecular formula C10H6Cl2O2S and a molecular weight of 261.12 g/mol.
Structurally, 3-Chloronaphthalene-2-sulfonyl chloride (C10H6Cl2O2S) 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 261.12 g/mol, it falls into the medium-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H6Cl2O2S |
| Molecular Weight | 261.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 1958 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloronaphthalene Standards
- 6-Chloronaphthalene-1-sulfonyl chloride (CAS 102153-61-7)
- 7-chloronaphthalene-1-sulfonyl chloride (CAS 102153-62-8)
- 6-Chloronaphthalene-2-sulfonyl chloride, 97% (CAS 102153-63-9)
- 7-Chloronaphthalene-2-sulfonyl chloride (CAS 102153-64-0)
- 2-Chloronaphthalene-1-sulfonyl chloride (CAS 102154-19-8)
- 4-chloronaphthalene-1-sulfonyl chloride (CAS 64318-08-7)
- 5-Chloronaphthalene-1-sulfonyl chloride, 96% (CAS 6291-07-2)
- 5-Chloronaphthalene-2-sulfonyl Chloride (CAS 89108-45-2)
Recommended Standards
- 3-Chloro-6-methoxy-1-benzothiophene-2-carbonyl chloride (CAS 75998-29-7)
- 3-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-benzamide (CAS 631911-09-6)
- 3-Chloro-5-methoxy-benzo[b]thiophene-2-carbonyl Chloride (CAS 56030-16-1)
- 4-(4-Bromo-3,5-dimethyl-1h-pyrazol-1-yl)butanoic acid (CAS 898050-16-3)
- N-(2,6-Dimethylphenyl)naphthalen-2-amine (CAS 6364-08-5)
- 3-chloro-1,2,4-thiadiazol-5-amine (CAS 27787-59-3)
- N*1*-((R)-1-Benzyl-piperidin-3-yl)-N*1*-isopropyl-ethane-1,2-diamine (CAS 1353987-42-4)
- 1-(Thiazol-2-yl)imidazolidin-2-one (CAS 10227-50-6)
- N-(Adamantan-1-yl)-4-bromobenzamide (CAS 403845-70-5)
- n-(Pyrimidin-5-ylmethyl)cyclopentanamine (CAS 1340535-79-6)
- Doripenem Impurity 3 (CAS 154634-04-5)
- Indolizine-1,2-dicarboxylic acid (CAS 55270-53-6)
- 2-(Prop-2-yn-1-ylthio)benzo[d]oxazole (CAS 52924-71-7)
- Semaglutide impurity 197 (CAS CATO-C4X-2226197)
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