Sodium 3-amino-5-chloro-4-methylbenzenesulfonate CAS 6627-59-4
| CAS No. | 6627-59-4 |
| Molecular Formula | C7H7ClNO3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Sodium 3-amino-5-chloro-4-methylbenzenesulfonate (CAS 6627-59-4), a certified reference material (molecular formula C7H7ClNO3SNa, MW 243.64 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H7ClNO3SNa, Sodium 3-amino-5-chloro-4-methylbenzenesulfonate contains a salt form, an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 243.64 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C7H7ClNO3S Na |
| Molecular Weight | 243.64 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, water |
| 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Sodium Standards
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- Methyl 2-amino-5-bromo-4-isopropylbenzoate (CAS 1000018-13-2)
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- 6-Amino-7-hydroxy-2,3-dihydro-1H-inden-1-one hydrobromide (CAS 1000333-87-8)
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Recommended Standards
- 1,1a,6,6a-tetrahydrocyclopropa[a]indene-1-carboxylic acid (CAS 501418-06-0)
- 2-[(2-Methoxyethyl)thio]-pyridine (CAS 511305-48-9)
- lithium(1+) ion 5-bromo-1,3-thiazole-2-carboxylate (CAS 1803594-42-4)
- N-Acryloyl-N-benzylhydrazinecarboxylic acid tert-butyl ester (CAS 1579223-92-9)
- tert-Butyl N-(4,4,4-trifluoro-1-oxobutan-2-yl)carbamate (CAS 1056467-83-4)
- Chlormadinone Acetate (CAS 302-22-7)
- Sar-NH2 · HCl (CAS 5325-64-4)
- 2-Bromo-5-chloro-3-fluorobenzoyl chloride (CAS 1804897-40-2)
- Chloro{N-[(1R,2R)-2-[(S)-[2-[[1,2,3,4,5,6-η)-4-methylphenyl]methoxy]ethyl]amino]-1,2-diphenylethylmethanesulfonamidato}ruthenium(II) (CAS 1333981-86-4)
- Tirzepatide Impurity 9 (CAS CATO-C4X-32409)
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