Ethyl 3,4,5,6-tetrachloropicolinate CAS 32889-72-8
| CAS No. | 32889-72-8 |
| Molecular Formula | C8H5Cl4NO2 |
| Molecular Weight | 288.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 288.94 g/mol gives Ethyl 3,4,5,6-tetrachloropicolinate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ethyl 3,4,5,6-tetrachloropicolinate (CAS 32889-72-8) is a high-purity analytical reference standard with the molecular formula C8H5Cl4NO2 and a molecular weight of 288.94 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Ethyl 3,4,5,6-tetrachloropicolinate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 288.94 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Ethyl 3,4,5,6-tetrachloropicolinate 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 | C8H5Cl4NO2 |
| Molecular Weight | 288.94 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, 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- Ethyl 2,4,5,6-tetrachloronicotinate (CAS 180298-66-2)
- Vitamin K1 Impurity 63 (CAS CATO-C4X-220763)
- 5,8-Dibromopyrido[4,3-d]pyrimidine (CAS 2228883-50-7)
- 1-Chlorooctadecane (CAS 3386-33-2)
- 6'-Amino-3'-butyl-2-oxo-1-propyl-1,2-dihydro-2'H-spiro[indole-3,4'-pyrano[2,3-c]pyrazole]-5'-carbonitrile (CAS 939888-67-2)
- 2,2,2-trifluoroethyl N-(1-tert-butyl-3-methyl-1H-pyrazol-5-yl)carbamate (CAS 1311314-91-6)
- Ethyl 4-(Trifluoromethyl)indole-3-carboxylate (CAS 2110104-22-6)
- tert-Butyl 1-(hydroxymethyl)-3-oxa-9-azaspiro[5.5]undecane-9-carboxylate (CAS 1357352-71-6)
- 5-Methyl-3-(1-(pyrrolidin-3-yl)-1H-1,2,3-triazol-4-yl)-1,2,4-oxadiazole (CAS 1707394-37-3)
- 4-(2-Methoxyphenyl)-3-methyl-1H-pyrazole (CAS 647825-31-8)
- 2-(Allylamino)quinazolin-4(3H)-one (CAS 212143-49-2)
- 5-Amino-2-chloro-4-fluorobenzenesulfonamide (CAS 69156-33-8)
- 5-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoxazole (CAS 1352734-32-7)
- D-Ala35-Tirzepatide (CAS CATO-CPTD788904)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com