1-Chloro-2,4-dimethoxybenzene CAS 7051-13-0
| CAS No. | 7051-13-0 |
| Molecular Formula | C8H9ClO2 |
| Molecular Weight | 172.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Chloro-2,4-dimethoxybenzene (CAS 7051-13-0), molecular formula C8H9ClO2 and molecular weight 172.61 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H9ClO2, 1-Chloro-2,4-dimethoxybenzene contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 172.61 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), 1-Chloro-2,4-dimethoxybenzene 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 | C8H9ClO2 |
| Molecular Weight | 172.61 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- (5-Chloro-1,3-phenylene)dimethanol (CAS 1000342-26-6)
- 1-(4-Chloro-1-ethyl-1h-pyrazol-3-yl)ethan-1-one (CAS 1006434-27-0)
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- 2-Chloro-5-methoxybenzyl alcohol (CAS 101252-66-8)
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Recommended Standards
- 1-Chloro-2,3-dimethoxybenzene (CAS 90282-99-8)
- 1-Chloro-3-(methoxymethoxy)benzene (CAS 91105-99-6)
- 1-Chloro-2-(methoxymethoxy)benzene (CAS 27701-22-0)
- 1H-Pyrrolizin-7a(5H)-ol, 2-chloro-2,3-dihydro-5-imino-, (2S,7aS)- (CAS 71774-49-7)
- Thiabendazole NH D6 (CAS 1262551-89-2)
- 2,2-Dimethylcyclobutane-1,3-dicarboxylic acid (CAS 473-69-8)
- TBZ26-2ThBr (CAS 1307899-49-5)
- 2-(4-((3-Methylcyclobutyl)methoxy)phenyl)acetic acid (CAS 1399652-74-4)
- N-(4-Cyano-2,3-dimethylquinolin-6-yl)acetamide (CAS 855165-86-5)
- (((1R,2R)-2-(Bromomethyl)cyclobutyl)methoxy)(tert-butyl)diphenylsilane (CAS 2765077-12-9)
- 2-(2-Bromo-6-(chloromethyl)-5-(difluoromethyl)pyridin-3-yl)acetonitrile (CAS 1805952-49-1)
- 3-(Pyridin-2-yl)propanamide (CAS 84199-91-7)
- 1-(4-hydroxycyclohexyl)pyrrolidin-2-one (CAS 895581-20-1)
- Exenatide Acetate (CAS 141732-76-5)
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