2-[4-(chlorosulfonyl)-2-methylphenoxy]acetic acid CAS 23095-23-0
| CAS No. | 23095-23-0 |
| Molecular Formula | C9H9ClO5S |
| Molecular Weight | 264.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 2-[4-(chlorosulfonyl)-2-methylphenoxy]acetic acid (CAS 23095-23-0), a certified reference material (molecular formula C9H9ClO5S, MW 264.68 g/mol) for analytical method development and quality control.
Structurally, 2-[4-(chlorosulfonyl)-2-methylphenoxy]acetic acid (C9H9ClO5S) 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 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 264.68 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 2-[4-(chlorosulfonyl)-2-methylphenoxy]acetic acid 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 | C9H9ClO5S |
| Molecular Weight | 264.68 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.) | 1963 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related chlorosulfonyl Standards
- methyl 2-(chlorosulfonyl)-4-methoxybenzoate (CAS 108318-75-8)
- methyl 4-(chlorosulfonyl)-2-methoxybenzoate (CAS 1581266-78-5)
- Methyl 4-(chlorosulfonyl)-3-methoxybenzoate (CAS 162141-56-2)
- Methyl 3-(chlorosulfonyl)-4-methoxybenzoate (CAS 192323-12-9)
- 2-[5-(chlorosulfonyl)-2-methoxyphenyl]acetic acid (CAS 926244-40-8)
- 3-[4-(chlorosulfonyl)phenoxy]propanoic acid (CAS 926251-94-7)
- 5-(Chlorosulfonyl)-2-methoxy-4-methylbenzoic acid (CAS 85591-40-8)
- Methyl 2-(chlorosulfonyl)-3-methoxybenzoate (CAS 215648-56-9)
Recommended Standards
- 2-[(4-Fluorobenzyl)oxy]benzoyl chloride (CAS 926025-98-1)
- 2-(Benzyloxy)-4-chloro-3-fluorobenzaldehyde (CAS 2586125-75-7)
- 2-Amino-5-chloro-N-(3-fluorophenyl)benzamide (CAS 299902-96-8)
- 2-(Benzyloxy)-3-chloro-5-fluorobenzaldehyde (CAS 2586126-33-0)
- Methyl 1-(3-chlorobenzyl)-1H-pyrazole-4-carboxylate (CAS 1172465-25-6)
- 5-chloro-1H-pyrrolo[3,2-b]pyridine-2-carboxylic acid (CAS 800401-63-2)
- 2,4-Difluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (CAS 1415568-78-3)
- 2,4-Dihydroxybenzoic Acid (CAS 89-86-1)
- 8-Bromo-7-fluoroquinoline-2-carboxylic acid (CAS 1420793-38-9)
- 1-Methylpiperidine-2-carbohydrazide (CAS 89856-16-6)
- 2,2-dimethyl-1,8-dioxa-4-azaspiro[5.5]undecane (CAS 1495198-38-3)
- alpha,3-Dichlorobenzaldoxime (CAS 29203-59-6)
- 7-Amino-1H-benzo[d]imidazole-5-carboxylic acid dihydrochloride (CAS 1072959-23-9)
- Liraglutide Impurity 25 (CAS CATO-C4X-199225)
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