5-Nitro-2-(p-tolylthio)benzyl thiophene-2-carboxylate CAS 329078-99-1
| CAS No. | 329078-99-1 |
| Molecular Formula | C19H15NO4S2 |
| Molecular Weight | 385.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 5-Nitro-2-(p-tolylthio)benzyl thiophene-2-carboxylate (C19H15NO4S2) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5-Nitro-2-(p-tolylthio)benzyl thiophene-2-carboxylate (CAS 329078-99-1), molecular formula C19H15NO4S2 and molecular weight 385.46 g/mol, is a CATO reference standard with documented purity and traceability.
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 5-Nitro-2-(p-tolylthio)benzyl thiophene-2-carboxylate 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 | C19H15NO4S2 |
| Molecular Weight | 385.46 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
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Recommended Standards
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- Bamifylline (CAS 2016-63-9)
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- tert-Butyl N-[(3S,4R)-4-hydroxypiperidin-3-yl]carbamate (CAS 1549812-73-8)
- 2-(3-(3,4-Dichlorobenzyl)-2,4,5-trioxoimidazolidin-1-yl)acetic acid (CAS 128043-98-1)
- 9-(2-Bromoethyl)-9H-carbazol-3-amine (CAS 2442597-58-0)
- tert-Butyl 3-formyl-4-hydroxybenzoate (CAS 1224157-88-3)
- tert-Butyl cis-N-(4-amino-1-methyl-cyclohexyl)carbamate hydrochloride (CAS 2227199-12-2)
- (4-(Aminomethyl)piperidin-1-yl)(1,3-dimethyl-1H-pyrazol-5-yl)methanone (CAS 1462333-22-7)
- (S)-1-morpholinopropan-2-amine (CAS 878279-07-3)
- α-Acetylphenylacetonitrile (CAS 4468-48-8)
- Semaglutide Impurity 158 (x TFA Salt) (CAS CATO-C4X-2226158)
Why CATO?
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