167678-46-8 3-(Chlorocarbonyl)-2-methylphenyl Acetate 3-Acetoxy-2-methylbenzoyl Chloride Acetic Acid 3-(Chlorocarbonyl)-2-methylphenyl Ester C2531 CAS 167678-46-8
| CAS No. | 167678-46-8 |
| Molecular Formula | C10H9ClO3 |
| Molecular Weight | 212.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
167678-46-8 3-(Chlorocarbonyl)-2-methylphenyl Acetate 3-Acetoxy-2-methylbenzoyl Chloride Acetic Acid 3-(Chlorocarbonyl)-2-methylphenyl Ester C2531 (C10H9ClO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; 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).
CATO supplies 167678-46-8 3-(Chlorocarbonyl)-2-methylphenyl Acetate 3-Acetoxy-2-methylbenzoyl Chloride Acetic Acid 3-(Chlorocarbonyl)-2-methylphenyl Ester C2531 (CAS 167678-46-8), a certified reference material (molecular formula C10H9ClO3, MW 212.63 g/mol) for analytical method development and quality control.
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.
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 | C10H9ClO3 |
| Molecular Weight | 212.63 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Halogen Content | Cl-containing |
Related Chlorocarbonyl Standards
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- Methyl 4-(chlorocarbonyl)-2-methylpyrimidine-5-carboxylate (CAS 241470-00-8)
- 3-(Chlorocarbonyl)-4-thiazolidinecarboxylic acid methyl ester (CAS 94134-48-2)
- Ethyl 3-(chlorocarbonyl)-1-methyl-1H-pyrazole-5-carboxylate (CAS 1170954-70-7)
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Recommended Standards
- (R)-6-chlorochromane-3-carboxylic acid (CAS 164265-10-5)
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- 1-Ethyl-5-fluoro-1H-pyrazole-4-sulfonyl chloride (CAS 1699953-14-4)
- Valsartan Impurity 16 (CAS 195435-23-5)
- 5-Methyl-2-(pyridin-4-yl)thiazol-4-yl benzoate (CAS 338398-94-0)
- 3-((1,3,3-Trimethyl-6-azabicyclo[3.2.1]Octan-6-yl)sulfonyl)aniline (CAS 543694-19-5)
- Ethyl 3-(2-chloropyridin-4-yl)-1,2,4-oxadiazole-5-carboxylate (CAS 1219571-90-0)
- 3-(4-(Benzyloxy)phenyl)-N-methylimidazo[1,2-a]pyrazin-8-amine (CAS 787591-01-9)
- Methyl 2,5-dimethylimidazo[1,2-a]pyridine-3-carboxylate (CAS 943119-58-2)
- (3-Propoxyisoxazol-5-yl)methanol (CAS 328257-14-3)
- (2-Bromophenyl)(imino)(methyl)-lambda6-sulfanone (CAS 833459-47-5)
- 2-(6-Bromopyridin-3-yl)-5-chloro-1H-benzo[d]imidazole (CAS 1261236-56-9)
- Des-[Gly]31-Semaglutide(x TFA Salt) (CAS 873874-39-6(free base))
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