5-[(p-Sulfophenyl)azo]salicylic Acid Acetate Methyl Ester Potassium Salt CAS 34265-46-8
| CAS No. | 34265-46-8 |
| Molecular Formula | C16H13N2O7S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 416.44 g/mol gives 5-[(p-Sulfophenyl)azo]salicylic Acid Acetate Methyl Ester Potassium Salt distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-[(p-Sulfophenyl)azo]salicylic Acid Acetate Methyl Ester Potassium Salt (CAS 34265-46-8), molecular formula C16H13N2O7SK and molecular weight 416.44 g/mol, is a CATO reference standard with documented purity and traceability.
5-[(p-Sulfophenyl)azo]salicylic Acid Acetate Methyl Ester Potassium Salt (C16H13N2O7SK) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-[(p-Sulfophenyl)azo]salicylic Acid Acetate Methyl Ester Potassium Salt 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 | C16H13N2O7S K |
| Molecular Weight | 416.44 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related p Standards
- 5-Oxo-1-(4-Sulfophenyl)-4,5-Dihydro-1H-Pyrazole-3-Carboxylic Acid (CAS 118-47-8)
- 2-(4-sulfophenyl)acetic acid (CAS 153661-28-0)
- 4',5'-Bis(4-sulfophenyl)-[1,1':2',1''-terphenyl]-4,4''-disulfonic acid (CAS 1629096-09-8)
- 4,4'-(((4-Sulfophenyl)azanediyl)bis(methylene))dibenzoic acid (CAS 2105860-95-3)
- 5'-(4-Sulfophenyl)-[1,1':3',1''-terphenyl]-4,4''-disulfonic acid (CAS 343821-13-6)
- 1-Propyl-8-(4-sulfophenyl)xanthine Potassium Salt (CAS 409344-71-4)
- 5-Oxo-1-(4-sulfophenyl)-2,5-dihydro-1H-pyrazole-3-carboxylic acid (CAS 51307-71-2)
- 4,7-Bis(4-sulfophenyl)-1,10-phenanthroline disodium salt (CAS 53744-42-6)
Recommended Standards
- Methyl 5-bromo-2,3-dimethoxybenzoate (CAS 83131-08-2)
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- Methyl 4-amino-1-(2-(benzyloxy)ethyl)-3-methyl-1H-pyrazole-5-carboxylate (CAS 1351386-06-5)
- tert-Butyl (2-chloro-4-(hydroxymethyl)thiophen-3-yl)carbamate (CAS 2732241-90-4)
- 4-(1,3-Dioxoisoindolin-2-yl)-2-hydroxybenzoic acid (CAS 36467-52-4)
- Atorvastatin Impurity 102 (CAS 88675-31-4)
- N'-(2-chloropropanoyl)-3-methylbutanehydrazide (CAS 1311317-45-9)
- N-[(4-Chlorophenyl)(4-fluorophenyl)methyl]acetamide (CAS 168779-39-3)
- Acetyl Tetrapeptide-5 (CAS 820959-17-9)
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