1,5-Dichloro-2,4-dimethylbenzene CAS 2084-45-9
| CAS No. | 2084-45-9 |
| Molecular Formula | C8H8Cl2 |
| Molecular Weight | 175.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 1,5-Dichloro-2,4-dimethylbenzene (CAS 2084-45-9), a certified reference material (molecular formula C8H8Cl2, MW 175.06 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H8Cl2, 1,5-Dichloro-2,4-dimethylbenzene contains chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 175.06 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.
Physical & Chemical Properties
| Molecular Formula | C8H8Cl2 |
| Molecular Weight | 175.06 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
- 2,5-Dichloro-p-xylene (CAS 1124-05-6)
- 1,2-Dichloro-3,4-dimethylbenzene (CAS 68266-67-1)
- 1,2-Dichloro-3-ethylbenzene (CAS 54484-61-6)
- 1,2-Dichloro-4,5-dimethylbenzene (CAS 20824-80-0)
- 1,3-Dichloro-2-ethylbenzene (CAS 33407-02-2)
- 1,4-Dichloro-2-ethylbenzene (CAS 54484-63-8)
- 1,5-Dichloro-2,3-dimethylbenzene (CAS 70172-92-8)
- 2,4-Dichloro-1-ethylbenzene (CAS 54484-62-7)
Recommended Standards
- 1-Chloro-2-(1-chloroethyl)benzene (CAS 20001-64-3)
- 1-chloro-2-(chloromethyl)-3-methylbenzene (CAS 55676-90-9)
- 1-Chloro-2-(chloromethyl)-4-methylbenzene (CAS 34896-68-9)
- 1,3-Bis(chloromethyl) Benzene (CAS 626-16-4)
- 4-(4-Bromophenyl)-1-methyl-3,6-dihydro-2H-pyridine (CAS 180912-08-7)
- Ethyl 2-amino-4-chloro-5-methoxybenzoate (CAS 108494-83-3)
- tert-Butyl 3-hydroxy-1-oxa-8-azaspiro[4.5]decane-8-carboxylate (CAS 240401-09-6)
- Bis-(2-trifluoromethoxy-ethyl)-ammonium; chloride (CAS 1286744-01-1)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-(pyrrolidin-1-yl)thiophen-2-yl)boronate (CAS 2223049-91-8)
- 2-Amino-5-(4-(trifluoromethyl)phenyl)nicotinic acid (CAS 1261493-89-3)
- 3-(4-(Trifluoromethyl)phenoxy)pyrrolidine hydrochloride (CAS 1211511-40-8)
- 1-3-4-6-Tetra-O-acetyl-2-deoxy-2-trifluoroacetamido-D-glucopyranose (CAS 7139-63-1)
- 3-Amino-4-(Boc-amino)pyridine, 97% (CAS 183311-28-6)
- Semaglutide Impurity 139 (CAS CATO-C4X-2226139)
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