3-(chlorosulfonyl)-2-hydroxy-5-methylbenzoic acid CAS 926214-03-1
| CAS No. | 926214-03-1 |
| Molecular Formula | C8H7ClO5S |
| Molecular Weight | 250.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(chlorosulfonyl)-2-hydroxy-5-methylbenzoic acid (C8H7ClO5S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 3-(chlorosulfonyl)-2-hydroxy-5-methylbenzoic acid (CAS 926214-03-1), a certified reference material (molecular formula C8H7ClO5S, MW 250.66 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C8H7ClO5S |
| Molecular Weight | 250.66 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 |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related chlorosulfonyl Standards
- Methyl 3-(chlorosulfonyl)-4-hydroxybenzoate (CAS 1889107-61-2)
- 4-(Chlorosulfonyl)-3-methoxybenzoic acid (CAS 503446-60-4)
- 5-(Chlorosulfonyl)-2-hydroxy-4-methylbenzoic acid (CAS 926270-90-8)
- Methyl 5-(chlorosulfonyl)-2-hydroxybenzoate (CAS 60638-81-5)
- 2-(CHLOROSULFONYL)BENZENETRIFLUORIDE 2-(CHLOROSULPHONYL)BENZOTRIFLUORIDE 2-(TRIFLUOROMETHYL)BENZENE-1-SULFONYL CHLORIDE 2-(TRIFLUOROMETHYL)BENZENESULFONYL CHLORIDE 2-(TRIFLUOROMETHYL)BENZENESULPHONYL CHLORIDE 2-Trifluoromethylbenzenesulfonyl chloride 776-04-5 AKOS BBS-00006972 ALPHA,ALPHA,ALPHA-TRIFLUOROTOLUENE-2-SULFONYL CHLORIDE AS03690 BUTTPARK 97\57-90 O-(TRIFLUOROMETHYL)BENZENESULFONYL CHLORIDE TIMTEC-BB SBB042825 (CAS 776-04-5)
- Methyl 4-(chlorosulfonyl)-6-methylpicolinate (CAS 1393551-01-3)
- methyl 5-(chlorosulfonyl)-2-methylpyridine-3-carboxylate (CAS 1784680-77-8)
- (Chlorosulfonyl)carbamic Acid Benzyl Ester (CAS 89979-13-5)
Recommended Standards
- 2-Chloro-N-methyl-5-nitrobenzenesulfonamide (CAS 89793-16-8)
- 3-Chloro-4-methyl-5-nitrobenzene-1-sulfonamide (CAS 861560-71-6)
- 2-Chloro-N-(4-fluorophenyl)nicotinamide (CAS 57841-99-3)
- 2-Chloro-5-methyl-4-nitrobenzenesulfonamide (CAS 871876-40-3)
- Bromoferrocene (CAS 1273-73-0)
- 3,5-Bis(trifluoromethyl)benzamidine hydrochloride (CAS 97603-94-6)
- 3-Morpholinophenylboronic Acid Hydrochloride (CAS 863248-20-8)
- Amodiaquine Impurity 2 Hydrochloride (CAS 13882-44-5)
- 1233513-45-5 N-Methyl-2-(1,1,2,2-tetrafluoroethoxy)aniline MFCD11655739 (CAS 1233513-45-5)
- (1-cyclopropyl-2,2,2-trifluoro-ethyl)hydrazine;hydrochloride (CAS 2101704-82-7)
- 3-Veratryl-4-Hexanone (CAS 6955-41-5)
- tert-Butyl 3-(piperidin-4-yl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-carboxylate (CAS 1361112-46-0)
- 2-hydroxy-N-(pentan-2-yl)propanamide (CAS 1153455-58-3)
- Insulin B (22-25) (CAS 34367-73-2)
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