(2E)-3-[[(4-Methylphenyl)sulfonyl]oxy]-2-butenoic Acid Methyl Ester CAS 1029612-16-5
| CAS No. | 1029612-16-5 |
| Molecular Formula | C12H14O5S |
| Molecular Weight | 270.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(2E)-3-[[(4-Methylphenyl)sulfonyl]oxy]-2-butenoic Acid Methyl Ester (CAS 1029612-16-5), molecular formula C12H14O5S and molecular weight 270.30 g/mol, is a CATO reference standard with documented purity and traceability.
(2E)-3-[[(4-Methylphenyl)sulfonyl]oxy]-2-butenoic Acid Methyl Ester (C12H14O5S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C12H14O5S |
| Molecular Weight | 270.30 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Sulfur Atoms | 1 |
Related E Standards
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- 898780-79-5 1-(4-Methylphenyl)-3-[4-(methylsulfanyl)phenyl]propan-1-one DTXSID80644360 (CAS 898780-79-5)
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Recommended Standards
- 1024-34-6 Phosphonic acid, phenyl-, dibutyl ester 4-16-00-01069 (Beilstein Handbook Reference) BRN 2942181 Dibutoxyphenylphosphine oxide Dibutyl phenylphosphonate NSC 62230 (CAS 1024-34-6)
- Methyl (Z)-3-(tosyloxy)but-2-enoate (CAS 1029612-18-7)
- 5-(4-Fluorophenyl)-7-methyl-1,3,4,5-tetrahydro-2h-benzo[e][1,4]diazepin-2-one (CAS 1023558-43-1)
- (5-Oxotetrahydrofuran-2-yl)methyl 4-methylbenzenesulfonate (CAS 107971-34-6)
- n-(4-Hydroxycyclohexyl)cyclobutanecarboxamide (CAS 1090812-91-1)
- 3H-spiro[2-benzofuran-1,1'-cyclohexan]-4'-one (CAS 204192-41-6)
- 2-Cyclopropoxy-4-(methylamino)benzonitrile (CAS 1243382-64-0)
- (E)-4-((1-(dimethylamino)-3-(2-(3-methoxyphenethyl)phenoxy)propan-2-yl)oxy)-4-oxobut-2-enoic acid (CAS CATO-C4X-291342)
- 3-(2-Chlorophenyl)isoxazol-5(4H)-one (CAS 27025-73-6)
- 4-(4-Methylpiperazin-1-yl)-2-(4-methylpiperidin-1-yl)aniline (CAS 1160474-88-3)
- 4-Chloro-7-fluoroquinazolin-6-ol (CAS 1379203-47-0)
- (1-Isobutyl-3-(trifluoromethyl)-1H-pyrazol-5-yl)boronic acid (CAS 2304633-89-2)
- (E)-4-Hydroxy Toremifene (~5% Z-isomer) (CAS 177748-22-0)
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