2(or4)-(isopropyl)benzenesulphonicacid CAS 28631-63-2
| CAS No. | 28631-63-2 |
| Molecular Formula | C9H12O3S |
| Molecular Weight | 200.25 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.
2(or4)-(isopropyl)benzenesulphonicacid (CAS 28631-63-2), molecular formula C9H12O3S and molecular weight 200.25 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H12O3S, 2(or4)-(isopropyl)benzenesulphonicacid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 200.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 2(or4)-(isopropyl)benzenesulphonicacid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H12O3S |
| Molecular Weight | 200.25 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Sulfur Atoms | 1 |
Related or Standards
- Isopropyl Benzenesulfonate (CAS 122838-93-1)
- Isopropyl Benzenesulfonate (CAS 6214-18-2)
- Isopropyl 2-amino-4-methylthiazole-5-carboxylate (CAS 692745-01-0)
- 2-(1-Isopropyl-3-oxopiperazin-2-yl)acetic acid (CAS 1024618-84-5)
- 2-(5-Isopropyl-2-oxopiperazin-1-yl)acetic acid (CAS 1060808-12-9)
- (R)-2-(3-Isopropyl-2-oxopiperazin-1-yl)acetic acid (CAS 1240583-00-9)
- (R)-2-(3-Isopropyl-5-oxopiperazin-1-yl)acetic acid (CAS 1240588-07-1)
- (S)-2-(5-Isopropyl-2-oxopiperazin-1-yl)acetic acid (CAS 1240590-35-5)
Recommended Standards
- 2-(Isopropylsulfonyl)phenol (CAS 29725-22-2)
- 2-(O-tolylsulfonyl)ethan-1-ol (CAS 860213-66-7)
- 2-(4-(Methylsulfonyl)phenyl)ethanol (CAS 214614-61-6)
- 2-(Toluene-4-sulfonyl)ethanol (CAS 272440-04-7)
- 5-(2-Chlorophenyl)thiazole-2-carbaldehyde (CAS 855300-97-9)
- 2-chloro-n-(cyclohexylmethyl)pyrimidin-4-amine (CAS 1248415-40-8)
- 4-Bromo-6-methyl-2H-pyran-2-one (CAS 132559-91-2)
- 5-((Difluoromethoxy)methyl)-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine-2-carboxylic acid (CAS 2413407-68-6)
- 3-Fluoro-5-sulfamoylbenzoic acid (CAS 926220-60-2)
- 1-Methyl-piperidine-3-thiol (CAS 98278-56-9)
- 11-Hexadecenoic Acid (CAS 2271-34-3)
- 1-(3-Methyl-1-benzofuran-2-yl)ethan-1-amine hydrochloride (CAS 1172557-88-8)
- N-(2,6-Dichloro-3-methylphenyl)acetamide (CAS 17700-55-9)
- Liraglutide(3-31)TFA Salt (CAS CATO-C4X-19921)
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