3,5-Dichloro-4-methoxybenzoyl Chloride CAS 29568-76-1
| CAS No. | 29568-76-1 |
| Molecular Formula | C8H5Cl3O2 |
| Molecular Weight | 239.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5-Dichloro-4-methoxybenzoyl Chloride (CAS 29568-76-1), molecular formula C8H5Cl3O2 and molecular weight 239.48 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 3,5-Dichloro-4-methoxybenzoyl Chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 239.48 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 3,5-Dichloro-4-methoxybenzoyl Chloride 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 | C8H5Cl3O2 |
| Molecular Weight | 239.48 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
- 3,6-Dichloro-2-methoxybenzoyl chloride (CAS 10411-85-5)
- Dichloro(octyl)(vinyl)silane (CAS 211985-85-2)
- 5,7-dichloro-2-(propan-2-yl)-2H-pyrazolo[4,3-d]pyrimidine (CAS 1630906-67-0)
- 4,6-dichloro-1-(propan-2-yl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 21254-22-8)
- 2,4-dichloro-5-methoxyquinazoline (CAS 61948-59-2)
- 2,5-dichloro-8-methoxyquinazoline (CAS 953040-09-0)
- 3,4-dichloro-6-methoxy-1,7-naphthyridine (CAS 2074703-17-4)
- 1,2-DIchloro-4-(methanesulfonylmethyl)benzene (CAS 25195-50-0)
Recommended Standards
- 2,4,6-Trichloro-3-methoxybenzaldehyde (CAS 704899-49-0)
- Chloromethyl 2,4-dichlorobenzoate (CAS 70190-72-6)
- 2,3,5-Trichloro-4-methylbenzoic acid (CAS 89978-34-7)
- Methyl 2,4,5-trichlorobenzoate (CAS 86569-81-5)
- 3,4-Dihydro-1-isoquinolinone (CAS 1196-38-9)
- 2-Amino-5-methoxyphenol (CAS 40925-70-0)
- 1,2-Dichloro-3-ethylbenzene (CAS 54484-61-6)
- 2-(3-Chloro-4-methylphenyl)-1,3-dioxoisoindoline-5-carboxylic acid (CAS 313260-37-6)
- 2-Ethylthiirane (CAS 3195-86-6)
- 3,5-Dichloro-4-methylbenzene-1-sulfonamide (CAS 861518-65-2)
- N-(tert-butoxycarbonyl)-O-(2-nitrophenyl)-L-threonine (CAS 160134-88-3)
- 4-Iodo-3-(trifluoromethoxy)benzoic acid (CAS 886762-67-0)
- 2- (3-chloropropyl-1-en-2-yl) -1,1,5,5-tetramethylcyclohexane (CAS 63216-72-8)
- Semaglutide Impurity 144 (CAS 394210-59-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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