N-(4-(3-(Pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl)benzenesulfonamide CAS 891135-67-4
| CAS No. | 891135-67-4 |
| Molecular Formula | C22H16N6O2S |
| Molecular Weight | 428.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of N-(4-(3-(Pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl)benzenesulfonamide is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
N-(4-(3-(Pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl)benzenesulfonamide (CAS 891135-67-4), molecular formula C22H16N6O2S and molecular weight 428.47 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, N-(4-(3-(Pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl)benzenesulfonamide (C22H16N6O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 428.47 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), N-(4-(3-(Pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl)benzenesulfonamide 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 | C22H16N6O2S |
| Molecular Weight | 428.47 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related N Standards
- 4-(Bis(4-(pyridin-4-yl)phenyl)amino)benzaldehyde (CAS 1449315-89-2)
- Ethyl 4-(2-((3-(pyridin-2-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetyl)piperazine-1-carboxylate (CAS 868967-19-5)
- 1-(1-(3-(Pyridin-4-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)-3-(3-(trifluoromethyl)phenyl)urea (CAS 1396795-05-3)
- N-(4-(Pyridin-4-ylamino)phenyl)-4-(quinolin-4-ylamino)benzamide (CAS 23655-67-6)
- 2-((4-Ethyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-phenoxyphenyl)acetamide (CAS 573972-93-7)
- 2-((4-Ethyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-phenoxyphenyl)acetamide (CAS 587005-82-1)
- Ethyl 3-((4-(pyridin-2-yl)piperazin-1-yl)sulfonyl)benzo[b]thiophene-2-carboxylate (CAS 932464-69-2)
- 2-(5-Phenyl-4-(pyridin-4-yl)-1H-1,2,3-triazol-1-yl)-N-(5-phenylpyridin-2-yl)acetamide (CAS 2074607-48-8)
Recommended Standards
- HO-PEG8-CH2COOH (CAS 780006-30-6)
- Praeruptorin C (CAS 83382-71-2)
- 3-Isomangostin hydrate (CAS 26063-96-7)
- Trimethylolpropane ethoxylate triacrylate average Mn ~692, contains 100 ppm MEHQ as inhibitor (CAS 75577-70-7)
- 2-((1,3-Dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidin-5-yl)thio)acetonitrile (CAS 899960-57-7)
- (3,4-Difluorophenyl)(2-(pyrrolidin-1-ylmethyl)phenyl)methanone (CAS 898775-06-9)
- Phenylpropanolamine Bitartrate (F) (CAS 67244-90-0)
- 2-Ethyl-6-methylpyridine (2-Ethyl-6-picoline) (CAS 1122-69-6)
- Goserelin BP Impurity 5 Acetate (CAS CATO-C4X-192035)
- (3Z)-6-Methyl-3-{[(3-methylphenyl)amino]methylidene}-3,4-dihydro-2H-pyran-2,4-dione (CAS 181277-27-0)
- 5-Chloro-2-methyl-4-(1-methylhydrazinyl)pyridazin-3(2H)-one (CAS 143703-11-1)
- Methyl 4-(4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidin-6-yl)benzoate (CAS 1011716-97-4)
- 3-(difluoromethyl)azetidin-3-ol hydrochloride (CAS 1909316-00-2)
- a2,3-Sialylglycopeptide (CAS 189035-43-6)
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