2,4,5-Trichloropyridine CAS 55934-01-5
| CAS No. | 55934-01-5 |
| Molecular Formula | C5H2Cl3N |
| Molecular Weight | 182.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,4,5-Trichloropyridine is closely related to a nitrile group, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2,4,5-Trichloropyridine (CAS 55934-01-5), molecular formula C5H2Cl3N and molecular weight 182.44 g/mol, is a CATO reference standard with documented purity and traceability.
2,4,5-Trichloropyridine (C5H2Cl3N) contains a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C5H2Cl3N |
| Molecular Weight | 182.44 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Trichloropyridine Standards
- 2,3,4-Trichloropyridine (CAS 55934-02-6)
- 2,5,6-Trichloropyridine (CAS 29154-14-1)
- 2,3,6-Trichloropyridine (CAS 6515-09-9)
- 2,3,5-Trichloropyridine (CAS 16063-70-0)
- 2,4,6-Trichloropyridine (CAS 16063-69-7)
- 3,4,5-Trichloropyridine (CAS 33216-52-3)
- 2,3,5-Trichloropyridine-4-carbaldehyde (CAS 251997-31-6)
- Trichloropyridine-2,4-diamine (CAS 725208-26-4)
Recommended Standards
- 4-Chloro-5-methyl-1,3-dihydro-2,1-benzoxaborol-1-ol (CAS 2121515-09-9)
- 2-(4-Chlorophenyl)-1,3,2-dioxaborolane (CAS 69519-09-1)
- 2-(3-Chlorophenyl)-1,3,2-dioxaborolane (CAS 402488-97-5)
- 2-(2-Chlorophenyl)-1,3,2-dioxaborolane (CAS 871817-14-0)
- 3-Methyl-2-(3-nitrophenyl)-1H-indole (CAS 113613-40-4)
- 2-Chloro-N-(4-(2,6-dimethylmorpholino)-3-fluorobenzyl)acetamide (CAS 1421603-80-6)
- 3-(Cyclopropylmethoxy)propan-1-amine (CAS 2986-60-9)
- 4-(4-Bromophenyl)-1-methyl-1H-imidazole-2-carboxylic acid ethyl ester (CAS 869568-12-7)
- 1-(2-Chloro-6-fluorobenzyl)-2-oxo-N-phenyl-1,2-dihydropyridine-3-carboxamide (CAS 478066-01-2)
- Brodifacoum-d4 (CAS CATO-CCAD301689)
- 5-(Aminomethyl)-7-bromopyrrolo[2,1-f][1,2,4]triazin-4-amine (CAS 2368205-75-6)
- 1-(5-Methylthiophen-3-yl)ethan-1-one (CAS 69213-96-3)
- 5'-Benzyl 1-(tert-butyl) (3a'R,6a'R)-3'-oxohexahydro-5'H-spiro[piperidine-4,1'-pyrrolo[3,4-c]pyrrole]-1,5'-dicarboxylate (CAS 1951442-13-9)
- Semaglutide Impurity 124 (CAS CATO-C4X-2226124)
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