3-(3,4-Dichlorophenyl)prop-2-ynoic acid CAS 19498-74-9
| CAS No. | 19498-74-9 |
| Molecular Formula | C9H4Cl2O2 |
| Molecular Weight | 215.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(3,4-Dichlorophenyl)prop-2-ynoic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-(3,4-Dichlorophenyl)prop-2-ynoic acid (CAS 19498-74-9) is a high-purity analytical reference standard with the molecular formula C9H4Cl2O2 and a molecular weight of 215.03 g/mol.
The molecular framework of 3-(3,4-Dichlorophenyl)prop-2-ynoic acid (C9H4Cl2O2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures 3-(3,4-Dichlorophenyl)prop-2-ynoic acid 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 | C9H4Cl2O2 |
| Molecular Weight | 215.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
Related Dichlorophenyl Standards
- 3-(2,3-Dichlorophenyl)propiolic acid (CAS 1342452-23-6)
- 3-(3,5-Dichlorophenyl)propiolic acid (CAS 1343152-27-1)
- 3-(2,4-Dichlorophenyl)prop-2-ynoic acid (CAS 6974-65-8)
- 3-(2,5-Dichlorophenyl)propiolic acid (CAS 935475-85-7)
- 5-(2,3-Dichlorophenyl)-2H-tetrazole (CAS 175205-12-6)
- 1-(2,5-Dichlorophenyl)tetrazole (CAS 98555-71-6)
- 5-(2,4-Dichlorophenyl)tetrazole (CAS 50907-22-7)
- 5-(2,5-Dichlorophenyl)-2H-tetrazole (CAS 884504-53-4)
Recommended Standards
- 3-(Methylsulfonylamino)phenylboronic Acid (CAS 148355-75-3)
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- 1,1,1,2,3,3,3-Heptafluoro-2-nitropropane (CAS 2730-56-5)
- 5-Nitro-3-(4-(trifluoromethyl)phenyl)-1H-indazole (CAS 1356087-78-9)
- (1-Amino-2-cyclohexylethyl)phosphonic acid (CAS 137619-55-7)
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- 2-[(2E)-2-Cyano-3-(4-methoxyphenyl)prop-2-enamido]acetic acid (CAS 461683-16-9)
- [cis-3-(aminomethyl)cyclobutyl]methanol;hydrochloride (CAS 1778734-54-5)
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- Methyl 4-amino-2-chlorobenzoate hydrochloride (CAS 220848-45-3)
- Tirzepatide Impurity 24 X TFA Salt (CAS CATO-C4X-324024)
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