Methyl 2-chloro-5-formylbenzoate CAS 199679-23-7
| CAS No. | 199679-23-7 |
| Molecular Formula | C9H7ClO3 |
| Molecular Weight | 198.60 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 Methyl 2-chloro-5-formylbenzoate.
Methyl 2-chloro-5-formylbenzoate (CAS 199679-23-7), molecular formula C9H7ClO3 and molecular weight 198.60 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Methyl 2-chloro-5-formylbenzoate (C9H7ClO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 198.60 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures Methyl 2-chloro-5-formylbenzoate 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 | C9H7ClO3 |
| Molecular Weight | 198.60 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.) | 2014 |
| Halogen Content | Cl-containing |
Related Methyl Standards
- Methyl 4-chloro-2-formylbenzoate (CAS 1001336-16-8)
- Methyl 4-chloro-3-formylbenzoate (CAS 1044920-98-0)
- 5-chloro-2,3-dihydro-1-benzofuran-7-carboxylic acid (CAS 108551-58-2)
- Methyl 2-chloro-6-formyl-benzoate (CAS 1086391-95-8)
- Methyl 5-chloro-2-formylbenzoate (CAS 1203589-45-0)
- 2-Chloro-2,2-Difluoro-1-(1-Piperazinyl)Ethanone (CAS 121412-25-7)
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Recommended Standards
- Methyl 2-chloro-4-formylbenzoate (CAS 908248-02-2)
- Methyl 3-Chloro-4-formylbenzoate (CAS 74733-26-9)
- Methyl 2-(chlorocarbonyl)benzoate (CAS 4397-55-1)
- Methyl 3-Chloro-5-formylbenzoate (CAS 879542-48-0)
- 3-O-Methanesulfonyl-D-glucopyranose (CAS 40631-95-6)
- 2-(4-Morpholino-3-oxobutyl)isoindoline-1,3-dione (CAS 861206-95-3)
- Ethyl 1-(2-fluoroethyl)-1H-pyrazole-5-carboxylate (CAS 1198437-41-0)
- 4894-23-9 Isoxazole, 4,5-dihydro-3,5-diphenyl- 4,5-Dihydro-3,5-diphenylisoxazole (CAS 4894-23-9)
- 1-(3-Aminopyrrolidin-1-yl)-3-cyclohexylpropan-1-one hydrochloride (CAS 1584123-54-5)
- 6-Bromo-3-(4-fluorobenzenesulfonyl)-2H-chromen-2-one (CAS 904438-70-6)
- 3-Methyl-4-phenoxy-1-phenyl-1H-pyrazol-5(4H)-one (CAS 107430-38-6)
- 2-Imino-10-methyl-1-(2-morpholinoethyl)-5-oxo-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide (CAS 618383-73-6)
- Uridine Impurity 16 (CAS 945684-11-7)
- Semaglutide impurity 203 (CAS CATO-C4X-2226203)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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