2-Chloro-6-formylbenzoic acid CAS 20771-97-5
| CAS No. | 20771-97-5 |
| Molecular Formula | C8H5ClO3 |
| Molecular Weight | 184.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-Chloro-6-formylbenzoic acid 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.
CATO supplies 2-Chloro-6-formylbenzoic acid (CAS 20771-97-5), a certified reference material (molecular formula C8H5ClO3, MW 184.58 g/mol) for analytical method development and quality control.
Structurally, 2-Chloro-6-formylbenzoic acid (C8H5ClO3) 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 184.58 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.
Physical & Chemical Properties
| Molecular Formula | C8H5ClO3 |
| Molecular Weight | 184.58 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.) | 1962 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 7-Chloro-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one (CAS 105544-33-0)
- 4-Chloro-6-methoxy-1H-pyrazolo[3,4-d]pyrimidine (CAS 1060816-54-7)
- (6-Chloro-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)methanol (CAS 1175301-94-6)
- 4-Chloro-3,7-dihydro-1H-pyrrolo[2,3-b]pyridine-2,6-dione (CAS 1190313-44-0)
- 6-Chloro-4-hydroxy-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 1190314-80-7)
- 5-Chloro-1H-pyrrolo[2,3-b]pyridine-2,6(3H,7H)-dione (CAS 1190315-19-5)
- 8-CHLORO-1H-PYRIDO[2,3-B][1,4]OXAZIN-2(3H)-ONE (CAS 1198154-62-9)
- 2-Chloro-5-formylbenzoic acid (CAS 1206625-81-1)
Recommended Standards
- 2-Chloro-6,7-dihydro-8H-pyrano[3,2-d]pyrimidin-8-one (CAS 2225722-20-1)
- 2-Chloro-7,8-dihydropteridin-6(5H)-one (CAS 875231-98-4)
- 2-Chloro-4-methoxyimidazo[2,1-f][1,2,4]triazine (CAS 2791313-98-7)
- 2-Chloro-9-methyl-3H-purin-6(9H)-one (CAS 36323-92-9)
- 2-Thiomorpholinobutan-1-amine (CAS 1042652-34-5)
- 5-Methyl-6-(4-methylpiperazin-1-yl)nicotinaldehyde (CAS 1355174-52-5)
- ethyl 1-methyl-2,5-dioxoimidazolidine-4-carboxylate (CAS 21823-24-5)
- Pcb No. 107 (CAS 70424-68-9)
- 3-Chloro-5h-indeno[1,2-c]pyridazine (CAS 69581-17-5)
- 1,8-Dibromo-9H-carbazole (CAS 553663-65-3)
- 2-Hydroxy-Phenanthrene (CAS 605-55-0)
- Tenofovir alafenamide impurity 72 (CAS CATO-C4X-179772)
- 2-((4-(2-Chlorophenyl)-6-(4-chlorophenyl)-3-cyanopyridin-2-yl)thio)-N-(4-ethoxyphenyl)acetamide (CAS 332372-36-8)
- Anti-TF Antigen Peptide P30-1 trifluoroacetate salt (CAS 573664-50-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com