tert-Butyl 4,5-dichloropicolinate CAS 2089301-03-9
| CAS No. | 2089301-03-9 |
| Molecular Formula | C10H11Cl2NO2 |
| Molecular Weight | 248.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including tert-Butyl 4,5-dichloropicolinate.
tert-Butyl 4,5-dichloropicolinate (CAS 2089301-03-9), molecular formula C10H11Cl2NO2 and molecular weight 248.11 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H11Cl2NO2, tert-Butyl 4,5-dichloropicolinate contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 248.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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.
As a certified reference material (CRM), tert-Butyl 4,5-dichloropicolinate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H11Cl2NO2 |
| Molecular Weight | 248.11 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- Tert-butyl 3,6-dichloropicolinate (CAS 211122-64-4)
- Ziprasidone impurity 52 (CAS CATO-C4X-124052)
- tert-Butyl 2,6-Dichloropyridine-4-carboxylate (CAS 75308-46-2)
- Dotinurad Impurity 42 (CAS CATO-C4X-249442)
- 6,8-Difluoro-3-iodoquinolin-4(1H)-one (CAS 1330750-76-9)
- rel-(1R,2S)-2-(3-bromophenyl)cyclopropan-1-amine hydrochloride (CAS 1807920-14-4)
- 2-Amino-6-chloro-4-iodopyridine (CAS 1062608-73-4)
- 1-(4-Nitrophenyl)hexan-1-one (CAS 111922-99-7)
- (2-Amino-4-bromophenyl)dimethylamine hydrochloride (CAS 1093619-91-0)
- 2-Chloro-5-(pyridin-4-yl)pyrazine (CAS 1809334-75-5)
- tert-Butyl 3-(2-methoxy-2-oxoethyl)-8-azabicyclo[3.2.1]octane-8-carboxylate (CAS 1823228-34-7)
- Tert-butyl 3-(bicyclo[1.1.1]Pentan-1-yl)-2,4,6,7-tetrahydro-5H-pyrazolo[4,3-c]pyridine-5-carboxylate (CAS 2315377-43-4)
- (2R,3R)-1-(Dimethylamino)-3-(3-methoxyphenyl)-2-methyl-3-pentanol (CAS 175590-76-8)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
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