4-((4-Butoxyphenyl)diazenyl)benzenesulfonic acid CAS 2241054-05-5
| CAS No. | 2241054-05-5 |
| Molecular Formula | C16H18N2O4S |
| Molecular Weight | 334.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-((4-Butoxyphenyl)diazenyl)benzenesulfonic acid (CAS 2241054-05-5), molecular formula C16H18N2O4S and molecular weight 334.39 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-((4-Butoxyphenyl)diazenyl)benzenesulfonic acid (C16H18N2O4S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
CATO manufactures 4-((4-Butoxyphenyl)diazenyl)benzenesulfonic acid 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 | C16H18N2O4S |
| Molecular Weight | 334.39 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Butoxyphenyl Standards
- N-(3-Butoxyphenyl)-N-[2-(4-chloro-2-methylphenoxy)ethyl]amine (CAS 1040682-99-2)
- 2-(3-Butoxyphenyl)-6-methylquinoline-4-carboxylic acid (CAS 932928-74-0)
- 2-(3-Butoxyphenyl)-8-methylquinoline-4-carboxylic acid (CAS 932928-78-4)
- 2-(3-Butoxyphenyl)quinoline-4-carbohydrazide (CAS 524932-95-4)
- 2-(4-Butoxyphenyl)-8-methylquinoline-4-carboxylic acid (CAS 438231-93-7)
- 2-(4-Butoxyphenyl)quinoline-4-carbohydrazide (CAS 51842-80-9)
- 3-(4-Butoxyphenyl)-8-methyl-1,4-diazaspiro[4.5]Dec-3-ene-2-thione (CAS 1325306-43-1)
- 1-(4-Butoxyphenyl)-3-(pyrazolo[1,5-a]pyridin-3-ylmethyl)urea (CAS 1396879-31-4)
Recommended Standards
- 3-Methoxy-N-(naphtho[1,2-d]thiazol-2-yl)benzamide (CAS 325988-66-7)
- 4-(3-Oxo-3-phenyl-1-propenyl)phenyl 2-thiophenecarboxylate (CAS 331459-76-8)
- 3-Ethyl-7-fluoro-3-methyl-3,4-dihydro-2H-[1,3'-biquinolin]-2-one (CAS 918646-06-7)
- 4-[(4-Methoxyphenyl)sulfanyl]-6-phenylfuro[2,3-d]pyrimidine (CAS 866038-96-2)
- tert-Butyl pivaloylcarbamate (CAS 948054-84-0)
- (S)-N1,N1-Dimethylbutane-1,2-diamine dihydrochloride (CAS 1777812-84-6)
- 8-Fluorocinnoline-4-thiol (CAS 876-79-9)
- (E)-2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)thio)-4-(2,4-dichlorostyryl)pyrimidine (CAS 338959-86-7)
- 6-Isopropoxy-6H-furo[2,3-b]pyrrole-4,5-diamine (CAS 877397-11-0)
- 2-(Bromomethyl)-6-methyl-1H-benzo[d]imidazole (CAS 886365-17-9)
- Lifitegrast Impurity 105 (CAS CATO-C4X-2409105)
- (1S,2S,4R)-Bicyclo[2.2.1]heptan-2-ol (CAS 61277-93-8)
- trans-Butyl 4-(aminomethyl)cyclohexanecarboxylate (CAS 124789-19-1)
- Semaglutide impurity 270 (CAS CATO-C4X-2226270)
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