4-(Benzyloxy)benzenesulfonic acid CAS 5950-16-3
| CAS No. | 5950-16-3 |
| Molecular Formula | C13H12O4S |
| Molecular Weight | 264.30 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.
4-(Benzyloxy)benzenesulfonic acid (CAS 5950-16-3) is a high-purity analytical reference standard with the molecular formula C13H12O4S and a molecular weight of 264.30 g/mol.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 4-(Benzyloxy)benzenesulfonic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 264.30 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C13H12O4S |
| Molecular Weight | 264.30 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 1 |
Related Benzyloxy Standards
- 5-(Benzyloxy)-2-methanesulfonylpyrimidine (CAS 16290-89-4)
- 3-(Benzyloxy)-5-methoxythiophene-2-carboxylic acid (CAS 1774902-33-8)
- Ethyl 6-(benzyloxy)-3-oxohexanoate (CAS 10378-08-2)
- 8-(Benzyloxy)-8-oxooctanoic acid (CAS 15570-39-5)
- (4-Benzyloxy-naphthalen-2-yl)-methanol (CAS 188863-65-2)
- (2-(Benzyloxy)naphthalen-1-yl)methanol (CAS 217176-35-7)
- (R)-1-((Benzyloxy)carbonyl)piperazine-2-carboxylic acid (CAS 1139878-81-1)
- (S)-1-((Benzyloxy)carbonyl)piperazine-2-carboxylic acid (CAS 1217437-93-8)
Recommended Standards
- 4-(4-Methanesulfonylpiperazin-1-yl)-4-oxobutanoic acid (CAS 899019-04-6)
- 4'-(Hydroxymethyl)-[1,1'-biphenyl]-4-sulfonic acid (CAS 74758-55-7)
- 4-((6-Methylbenzo[d]thiazol-2-yl)amino)-4-oxobutanoic acid (CAS 261505-37-7)
- 4-amino-2-methyl-N-(pyrimidin-2-yl)benzene-1-sulfonamide (CAS 854634-29-0)
- Methyl 2,4-dioxoheptanoate (CAS 20577-63-3)
- (S)-3-(Pyrrolidin-2-yl)phenol hydrochloride (CAS 2250242-77-2)
- 1-((tert-Butyldimethylsilyl)(phenyl)methyl)-1H-indole (CAS 162087-99-2)
- Benzoic acid, 4-[[(tetrahydro-2H-pyran-4-yl)carbonyl]amino]-, ethyl ester (CAS 1153390-75-0)
- 2-Chloro-4,5,6-trimethylpyrimidine (CAS 24307-77-5)
- (E)-1-[(2E)-3-(4-Chlorophenyl)-1-(4-nitrophenyl)prop-2-en-1-ylidene]-2-phenylhydrazine (CAS 338777-21-2)
- Cefadroxil Monohydrate (CAS 66592-87-8)
- Methyl 3-fluoropropanoate (CAS 459-70-1)
- Tegoprazan Impurity 74 (CAS CATO-C4X-229774)
- Sperm Peptide P10G (H-2424.0001) (CAS 137353-73-2)
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