Ethyl 3-(4-chloro-2-nitrophenyl)-2-oxopropanoate CAS 540523-98-6
| CAS No. | 540523-98-6 |
| Molecular Formula | C11H10ClNO5 |
| Molecular Weight | 271.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 3-(4-chloro-2-nitrophenyl)-2-oxopropanoate (CAS 540523-98-6) is a high-purity analytical reference standard with the molecular formula C11H10ClNO5 and a molecular weight of 271.65 g/mol.
Structurally, Ethyl 3-(4-chloro-2-nitrophenyl)-2-oxopropanoate (C11H10ClNO5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 271.65 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Ethyl 3-(4-chloro-2-nitrophenyl)-2-oxopropanoate 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 | C11H10ClNO5 |
| Molecular Weight | 271.65 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- Ethyl 3-(4-chloro-3-nitrophenyl)-3-oxopropionate (CAS 110473-56-8)
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- Ethyl 4-chloro-5,8-difluoroquinoline-3-carboxylate (CAS 193827-70-2)
- 2-(6-Chloro-7-(methoxycarbonyl)-2,3-dihydro-1H-pyrrolizin-5-yl)-2-oxoacetic acid (CAS 2387920-03-6)
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Recommended Standards
- Dimethyl 2-(6-chloronicotinoyl)malonate (CAS 923034-23-5)
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- Methyl 4-(2-chloro-6-nitrophenyl)-3-oxobutanoate (CAS 2677030-69-0)
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- 6-(Aminomethyl)nicotinic acid xhydrochloride (CAS 872602-66-9)
- (+)-JQ1 (CAS 1268524-70-4)
- Benzonitrile, 4-(4H-1,2,4-triazol-4-ylamino)- (CAS 148869-66-3)
- 4-Nitrophenyl 2-O-(α-D-glucopyranosyl)-α-D-glucopyranoside (CAS 147103-31-9)
- 4,5-Dihydro-2,4-benzoxazepin-3(1H)-one (CAS 39976-24-4)
- 7-Chloro-8-(2-hydroxyethoxy)pyrido[4,3-d]pyrimidine-2,4(1H,3H)-dione (CAS 2883421-73-4)
- 2-(4-Methyl-6-oxopyrimidin-1(6H)-yl)-N-(pyridin-4-yl)acetamide (CAS 1203000-34-3)
- tert-butyl (3R,4S)-4-azido-3-fluoro-piperidine-1-carboxylate (CAS 2165764-47-4)
- 2-(2-(Ethyl(propyl)amino)ethoxy)ethan-1-ol (CAS 1250710-79-2)
- Semaglutide impurity 200 (CAS CATO-C4X-2226200)
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