Ethyl 4-tosyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylate CAS 35017-54-0
| CAS No. | 35017-54-0 |
| Molecular Formula | C18H19NO5S |
| Molecular Weight | 361.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Ethyl 4-tosyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 361.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 supplies Ethyl 4-tosyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylate (CAS 35017-54-0), a certified reference material (molecular formula C18H19NO5S, MW 361.41 g/mol) for analytical method development and quality control.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C18H19NO5S |
| Molecular Weight | 361.41 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 5-Tosyl-5,6-dihydroindolo[2,3-b]indole (CAS 1607470-19-8)
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- 1-Benzyl-6-tosyl-1,6-diazaspiro[3.3]Heptan-3-amine (CAS 1349199-73-0)
- 2-Tosyl-N-(5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl)acetamide (CAS 339014-06-1)
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Recommended Standards
- Ethyl 2-acetamido-5-(benzo[d][1,3]dioxol-5-ylmethyl)-4-methylthiophene-3-carboxylate (CAS 377764-57-3)
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- Diethyl 5-benzamido-3-methylthiophene-2,4-dicarboxylate (CAS 53002-57-6)
- Methyl 3-(n-allyl-n-(4-methoxyphenyl)sulfamoyl)benzoate (CAS 380195-44-8)
- 4-(2-Aminoethyl)piperidin-4-ol (CAS 1535376-80-7)
- Tetrafluorobenzene-1,3-diol (CAS 16840-25-8)
- α-2-Propen-1-yl-1,3-benzodioxole-5-methanol (CAS 6052-61-5)
- Bis-(4-nitrophenyl)pimelate (CAS 49761-23-1)
- 3-Amino-3-methyl-1-morpholinobutan-1-one hydrochloride (CAS 1415898-61-1)
- 3-Pentyl-6-(trifluoromethyl)-3,4-dihydro-2H-benzo[e][1,2,4]thiadiazine-7-sulfonamide 1,1-dioxide (CAS 1766-91-2)
- 4-(4-Iodophenyl)-1-propyl-1H-pyrazole (CAS 1394022-17-3)
- 1,1-Bis(4-chlorophenyl)-2-(4-methoxybenzenesulfinyl)ethan-1-ol (CAS 337919-99-0)
- (R)-2-Amino-2-(5-fluoro-2-hydroxyphenyl)acetic acid (CAS 1212934-96-7)
- Semaglutide Impurity 177 (CAS CATO-C4X-2226177)
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