(E)-3-(4-(4-chlorophenoxy)-3-nitrophenyl)acrylic acid CAS 338403-63-7
| CAS No. | 338403-63-7 |
| Molecular Formula | C15H10ClNO5 |
| Molecular Weight | 319.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (E)-3-(4-(4-chlorophenoxy)-3-nitrophenyl)acrylic acid.
(E)-3-(4-(4-chlorophenoxy)-3-nitrophenyl)acrylic acid (CAS 338403-63-7) is a high-purity analytical reference standard with the molecular formula C15H10ClNO5 and a molecular weight of 319.70 g/mol.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, (E)-3-(4-(4-chlorophenoxy)-3-nitrophenyl)acrylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 319.70 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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)-3-(4-(4-chlorophenoxy)-3-nitrophenyl)acrylic acid 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 | C15H10ClNO5 |
| Molecular Weight | 319.70 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related E Standards
- (2E)-3-[4-(2-Chlorophenoxy)-3-nitrophenyl]prop-2-enoic acid (CAS 338403-65-9)
- 3-[4-(3-Chlorophenoxy)-3-nitrophenyl]acrylic acid (CAS 338403-64-8)
- 4-((4-(2-Chlorophenoxy)phenyl)amino)-4-oxobutanoic acid (CAS 667446-82-4)
- (E)-3-(3-((4-Chlorophenoxy)methyl)-4-methoxyphenyl)acrylic acid (CAS 512809-94-8)
- 5-(3-Chlorophenoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid (CAS 282523-49-3)
- N-(5-(3-chlorophenoxy)-4-methyl-2-nitrophenyl)acetamide (CAS 383147-44-2)
- 4-[2-(3-chlorophenoxy)ethoxy]-3-ethoxybenzaldehyde (CAS 1286429-98-8)
- 2-(2-Acetyl-4-chlorophenoxy)-N-(1-cyano-1-cyclopropylethyl)acetamide (CAS 940797-46-6)
Recommended Standards
- (E)-[(3-Nitrophenyl)methylidene]amino N-(3-chlorophenyl)carbamate (CAS 303987-33-9)
- Methyl 2-(4-chloro-3-nitrobenzoyl)benzoate (CAS 20643-68-9)
- 2-Chloro-4-nitrophenyl-alpha-L-fucopyranoside (CAS 157843-41-9)
- N-(2-carbamoylphenyl)-4-chloro-3-nitrobenzamide (CAS 331240-40-5)
- (E)-N'-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-N,N-dimethylformohydrazonamide (CAS 339029-44-6)
- Golgicide A-1 (CAS 1394285-49-4)
- Methyl ((S)-1-((2S,4R)-2-(((S)-1-cyano-2-((S)-2-oxopyrrolidin-3-yl)ethyl)carbamoyl)-4-(trifluoromethyl)pyrrolidin-1-yl)-3,3-dimethyl-1-oxobutan-2-yl)carbamate (CAS 2755812-39-4)
- 4-Chloro-2-((6-methoxypyridin-3-yl)amino)benzoic acid (CAS 6626-07-9)
- Betaxolol EP Impurity D (CAS 63659-16-5)
- Dimethyl-[6-(3-pyrimidin-4-yl-phenyl)-4-trifluoromethyl-pyridin-2-yl]-amine (CAS 1311279-40-9)
- 2-Cyano-4-fluorobenzamide (CAS 1261643-35-9)
- 1-(4-Bromopyridin-3-yl)cyclopropan-1-amine hydrochloride (CAS 2149601-59-0)
- n,2-Dihydroxy-3-methylbenzamide (CAS 26071-07-8)
- Eosinophilotactic Peptide (CAS 61756-28-3)
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