2,3,4,5,5-Pentachloropenta-2,4-dienoic acid CAS 5659-41-6
| CAS No. | 5659-41-6 |
| Molecular Formula | C5HCl5O2 |
| Molecular Weight | 270.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 270.33 g/mol gives 2,3,4,5,5-Pentachloropenta-2,4-dienoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2,3,4,5,5-Pentachloropenta-2,4-dienoic acid (CAS 5659-41-6) is a high-purity analytical reference standard with the molecular formula C5HCl5O2 and a molecular weight of 270.33 g/mol.
The molecular framework of 2,3,4,5,5-Pentachloropenta-2,4-dienoic acid (C5HCl5O2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 2,3,4,5,5-Pentachloropenta-2,4-dienoic 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 | C5HCl5O2 |
| Molecular Weight | 270.33 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
Recommended Standards
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- 2,3-Diphenylimidazo[1,2-a]pyridine (CAS 85102-26-7)
- 2(1H)-pyrimidinone, 5-(4-methylphenoxy)- (CAS 41964-01-6)
- (R)-(-)-5,5',6,6',7,7',8,8'-Octahydro-3,3'-di-t-butyl-1,1'-bi-2-naphthol, dipotassium salt (CAS 350683-75-9)
- FMOC-MeThr(Me)-OH (CAS 1645308-94-6)
- 2,3-Dimethoxy-6,7-dimethyl-4-propyl-1-naphthoic acid (CAS 213971-46-1)
- Dimethyl docosanedioate (CAS 22399-98-0)
- Blonanserin Impurity 33 (CAS 4640-67-9)
- (AlphaS,7aR)-2-Oxoclopidogrel (CAS 1416696-48-4)
- 5-Chloro-1H-pyrrolo[2,3-b]pyridine-2,3-dione (CAS 905092-64-0)
- 5-Iodo-1-naphthoic acid (CAS 91059-42-6)
- Tau Peptide (304-318) trifluoroacetate salt (CAS 330456-49-0)
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