Pentachlorophenol Sodium CAS 131-52-2
| CAS No. | 131-52-2 |
| Molecular Formula | C6Cl5O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Pentachlorophenol Sodium is closely related to a salt form, 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.
Pentachlorophenol Sodium (CAS 131-52-2), molecular formula C6Cl5ONa and molecular weight 288.31 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a salt form, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Pentachlorophenol Sodium is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 288.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6Cl5O Na |
| Molecular Weight | 288.31 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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 |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Pentachlorophenol Standards
Recommended Standards
- Carbamic acid, [(1S,3R)-3-(acetyloxy)cyclohexyl]-, phenylmethyl ester (CAS 750649-41-3)
- (Z)-2-(Hex-3-en-3-yl)benzo[d][1,3,2]dioxaborole (CAS 37490-28-1)
- 5-Methyluridine-5- (CAS 478511-02-3)
- (2-Methylcycloprop-2-en-1-yl)methyl (2-hydroxyethyl)carbamate (CAS 1402265-33-1)
- 4-Fluoro-1-methyl-2-(trifluoromethoxy)benzene (CAS 1404195-15-8)
- Strontium malonate (1:1) (CAS 63524-05-0)
- 2-(6-Methoxypyridin-2-yl)-6-phenyl-1,3,6,2-dioxazaborocane (CAS 1133971-47-7)
- 1-(Benzenesulfonyl)-1H-indole-2-carbaldehyde (CAS 80360-23-2)
- (5-Amino-1-(2-methoxyphenyl)-1H-pyrazol-4-yl)(2-chlorophenyl)methanone (CAS 618092-02-7)
- Tirzepatide Impurity 43 (CAS CATO-C4X-324043)
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