Sodium 3-chloro-4-methoxybenzenesulfinate CAS 196866-01-0
| CAS No. | 196866-01-0 |
| Molecular Formula | C7H6ClO3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Sodium 3-chloro-4-methoxybenzenesulfinate (CAS 196866-01-0), molecular formula C7H6ClO3SNa and molecular weight 228.62 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a salt form, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Sodium 3-chloro-4-methoxybenzenesulfinate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 228.62 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Sodium 3-chloro-4-methoxybenzenesulfinate 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 | C7H6ClO3S Na |
| Molecular Weight | 228.62 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2013 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Sodium Standards
- benzyl 4-(5-chloro-1-(2-ethoxy-2-oxoethyl)-6-oxo-1,6-dihydropyridazin-4-yl)piperazine-1-carboxylate (CAS 1000018-18-7)
- 3-[(2-Chloro-4-methylsulfonyl)phenoxy]benzoic acid (CAS 1000018-31-4)
- 6-Chloro-2-[2-(3-[(6-chloro-1-ethylbenz[c,d,]indole-2[1H]-ylidene)ethylidene]-2-phenyl-1-cyclopenten-1-yl)ethenyl]-1-ethylbenz[c,d]indolium tetrafluoroborate (CAS 100012-45-1)
- 3-Chloro-2-fluoro-5-iodobenzoic acid (CAS 1000162-09-3)
- (3-Chloro-2-fluoro-5-iodophenyl)methanol (CAS 1000162-10-6)
- 3-Chloro-2-fluoro-5-nitrobenzoic acid (CAS 1000162-34-4)
- 2-Chloro-N-(piperidin-4-yl)-6,7-dihydro-5H-cyclopenta-[d]pyrimidin-4-amine hydrochloride (CAS 1000207-51-1)
- 4-chloro-6-(3,3-difluoropyrrolidin-1-yl)pyrimidine (CAS 1000303-40-1)
Recommended Standards
- 2,3,5,6-Tetrafluorobenzyl Alcohol (CAS 4084-38-2)
- 5-Chloro-3-((4-chlorophenyl)thio)-2-methyl-1H-indole (CAS 628736-22-1)
- 2-Chloro-n-[2-(dimethylamino)ethyl]acetamide hydrochloride (CAS 92384-34-4)
- 3-Amino-3-(5-ethylfuran-2-yl)propanoic acid (CAS 682803-02-7)
- (R)-Benzyl 3-(cyclopropylamino)pyrrolidine-1-carboxylate (CAS 1354020-84-0)
- (S)-Benzyl ((1-(2-aminoethyl)pyrrolidin-2-yl)methyl)(isopropyl)carbamate (CAS 1354017-36-9)
- 4-{2-[(4-methoxyphenyl)methyl]-1,3-thiazole-4-carbonyl}morpholine (CAS 478030-35-2)
- 4-Cyclopropyl-2-mercapto-6-(trifluoromethyl)nicotinonitrile (CAS 869949-78-0)
- 3-(4-(Trifluoromethyl)phenyl)bicyclo[1.1.0]butane-1-carboxylic acid (CAS 2089650-74-6)
- Neuropeptide Y (3-36) (human, rat) trifluoroacetate salt (CAS 150138-78-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com