4-(4-((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)sulfonyl)piperazin-1-yl)-2-(pyridin-3-yl)quinazoline CAS 851185-20-1
| CAS No. | 851185-20-1 |
| Molecular Formula | C25H23N5O4S |
| Molecular Weight | 489.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(4-((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)sulfonyl)piperazin-1-yl)-2-(pyridin-3-yl)quinazoline is closely related to a flavonoid 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.
4-(4-((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)sulfonyl)piperazin-1-yl)-2-(pyridin-3-yl)quinazoline (CAS 851185-20-1), molecular formula C25H23N5O4S and molecular weight 489.55 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-(4-((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)sulfonyl)piperazin-1-yl)-2-(pyridin-3-yl)quinazoline (C25H23N5O4S) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
CATO manufactures 4-(4-((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)sulfonyl)piperazin-1-yl)-2-(pyridin-3-yl)quinazoline 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 | C25H23N5O4S |
| Molecular Weight | 489.55 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Dihydrobenzo Standards
- N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-((4-(4-ethoxyphenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 477330-75-9)
- N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-((1-(4-fluorobenzyl)-1H-indol-3-yl)sulfonyl)acetamide (CAS 686744-12-7)
- N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-((3-methyl-4-oxo-7-(p-tolyl)-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 1111292-29-5)
- N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-((3-methyl-4-oxo-7-phenyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 1040682-14-1)
- N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-((5-((4-methoxybenzyl)thio)-1,3,4-thiadiazol-2-yl)thio)acetamide (CAS 499103-68-3)
- 3-((2,3-Dihydrobenzo[b][1,4]dioxine)-6-sulfonamido)-N-(2-oxo-2-(piperidin-1-yl)ethyl)benzamide (CAS 1111446-79-7)
- 1-(4-((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)sulfonyl)piperazin-1-yl)-2-(6-methylbenzofuran-3-yl)ethan-1-one (CAS 847939-23-5)
- 1-((2,3-dihydrobenzo[b][1,4]dioxin-6-yl)sulfonyl)-4-((4-methoxyphenyl)sulfonyl)piperazine (CAS 562867-96-3)
Recommended Standards
- N-((1R,2R)-2-(3-(3,5-Bis(trifluoromethyl)phenyl)thioureido)cyclohexyl)-2-methylpropane-2-sulfinamide (CAS 959979-36-3)
- 4-Hydroxy Duloxetine B-D-Glucuronide (CAS 741693-83-4)
- Vardenafil Impurity 35 (CAS CATO-C4X-101735)
- Iridium(III) acetylacetonate (CAS 15635-87-7)
- 7-Bromo-benzooxazole-2-carboxylic acid (CAS 944898-67-3)
- n-[(dimethyl-1,2-oxazol-4-yl)methyl]-n-methylcyclopentanamine (CAS 1258693-65-0)
- 898782-00-8 (2-Chlorophenyl){2-[(thiomorpholin-4-yl)methyl]phenyl}methanone DTXSID90643829 (CAS 898782-00-8)
- Pivmecillinam Impurity 5 (CAS 64527-05-5)
- 4-Methyl-6-phenyl-3-(m-tolylsulfonyl)pyridin-2(1H)-one (CAS 321431-40-7)
- 2-Amino-N-(2-(methylamino)-2-oxoethyl)acetamide (CAS 92235-99-9)
- 5-ethynyl-1,4-dimethyl-pyrazole (CAS 1865506-49-5)
- Thymopentin (CAS 177966-81-3)
- 4-(3-Chlorophenyl)-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one (CAS 117892-18-9)
- Semaglutide Impurity 140 (CAS CATO-C4X-2226140)
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