(E)-1-(2,5-Dichloro-3-thienyl)-3-(3-nitroanilino)-2-propen-1-one CAS 338402-04-3
| CAS No. | 338402-04-3 |
| Molecular Formula | C13H8Cl2N2O3S |
| Molecular Weight | 343.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 343.19 g/mol gives (E)-1-(2,5-Dichloro-3-thienyl)-3-(3-nitroanilino)-2-propen-1-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(E)-1-(2,5-Dichloro-3-thienyl)-3-(3-nitroanilino)-2-propen-1-one (CAS 338402-04-3), molecular formula C13H8Cl2N2O3S and molecular weight 343.19 g/mol, is a CATO reference standard with documented purity and traceability.
(E)-1-(2,5-Dichloro-3-thienyl)-3-(3-nitroanilino)-2-propen-1-one (C13H8Cl2N2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (E)-1-(2,5-Dichloro-3-thienyl)-3-(3-nitroanilino)-2-propen-1-one 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 | C13H8Cl2N2O3S |
| Molecular Weight | 343.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 2,6-dihydro-2-(4-iodophenyl)-4H-Thieno[3,4-c]pyrazol-3-amine (CAS 1418273-61-6)
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- 5-Bromo-2-methoxyphenyl benzenesulfonate (CAS 1150271-32-1)
- 5-(((4-Bromophenyl)thio)methylene)-2,2-dimethyl-1,3-dioxane-4,6-dione (CAS 477866-37-8)
- 2-Phenylcyclopentan-1-ol (CAS 343852-60-8)
- 1-(2-(2-(Cyclopropylamino)pyridin-3-yl)piperidin-1-yl)ethanone (CAS 1352515-80-0)
- Methyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)nicotinate (CAS 2096342-27-5)
- 2-((2-Bromopyridin-3-yl)oxy)ethan-1-ol (CAS 313657-71-5)
- 1-(1-Ethyl-1H-indol-3-yl)-3-(2-methoxy-5-methylphenyl)urea (CAS 941908-52-7)
- tert-Butyl N-(2-Amino-2-cyclohexylethyl)carbamate (CAS 1270370-49-4)
- Ethyl (3-Chlorobenzoyl)acetate (CAS 33167-21-4)
- N-(1-Methyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)cyclohexanesulfonamide (CAS 922005-24-1)
- 5,10,15-Triethyl-10,15-dihydro-5H-diindolo[3,2-a:3',2'-c]carbazole-2,7,12-tricarbaldehyde (CAS 1809810-32-9)
- Semaglutide impurity 202 (CAS CATO-C4X-2226202)
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