Ammonium 4-(4-(3-(4-(dimethylamino)phenyl)allylidene)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonate CAS 94266-14-5
| CAS No. | 94266-14-5 |
| Molecular Formula | C21H20N3O4S |
| Molecular Weight | N/A |
| 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.
Ammonium 4-(4-(3-(4-(dimethylamino)phenyl)allylidene)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonate (CAS 94266-14-5), molecular formula C21H20N3O4SH4N and molecular weight 428.51 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H20N3O4SH4N, Ammonium 4-(4-(3-(4-(dimethylamino)phenyl)allylidene)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonate contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 428.51 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).
As a certified reference material (CRM), Ammonium 4-(4-(3-(4-(dimethylamino)phenyl)allylidene)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonate 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 | C21H20N3O4S H4N |
| Molecular Weight | 428.51 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Ammonium Standards
- 3-(DImethylamino)propanamide hydrochloride (CAS 1000395-57-2)
- 2-[2-(Dimethylamino)phenyl]acetonitrile (CAS 1000512-16-2)
- 3-((3-(Dimethylamino)propyl)amino)-7-fluoro-4-methyl-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide (CAS 1000574-72-0)
- 6-(Dimethylamino)-1H-indole-2-carboxylic acid (CAS 100060-36-4)
- 2-{4-[(dimethylamino)methyl]phenyl}benzonitrile (CAS 1000930-96-0)
- 2-(Dimethylamino)-3-(4-methylphenyl)-3H-thieno[2,3-d]imidazole-5-carboxylic acid (CAS 1000932-46-6)
- 2-(4-(Dimethylamino)phenyl)acetohydrazide (CAS 100133-14-0)
- (E)-3-(Dimethylamino)-1-(1-methyl-4-nitro-1h-pyrazol-3-yl)prop-2-en-1-one (CAS 1001500-83-9)
Recommended Standards
- 1-(3-Methylphenyl)-2-(4-pyridinyl)ethanone (CAS 216529-53-2)
- Quinolin-2-ol (CAS 70254-42-1)
- Methyl 3-methyleneheptanoate (CAS 746622-30-0)
- 2-Amino-9-((2R,4R,5R)-4-fluoro-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1H-purin-6(9H)-one (CAS 125291-17-0)
- 3-(2,4-di-tert-butylphenoxy)propanenitrile (CAS 1041594-75-5)
- Benzyl 2-((2-chloro-N-isopropylacetamido)methyl)piperidine-1-carboxylate (CAS 1353964-24-5)
- 6-Bromo-4-chloro-7-fluoroquinoline (CAS 1566994-56-6)
- 1-Amino-4-hydroxycyclohexanecarboxylic acid (CAS 369403-06-5)
- 2,4-Difluoro-N-(4-((phenylsulfinyl)methyl)phenyl)benzamide (CAS 477710-62-6)
- Acetyl-Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 2022956-56-3)
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