2-Chloro-4,5-dimethylbenzoic acid CAS 15089-74-4
| CAS No. | 15089-74-4 |
| Molecular Formula | C9H9ClO2 |
| Molecular Weight | 184.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-Chloro-4,5-dimethylbenzoic acid (CAS 15089-74-4), molecular formula C9H9ClO2 and molecular weight 184.62 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Chloro-4,5-dimethylbenzoic acid (C9H9ClO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 2-Chloro-4,5-dimethylbenzoic acid 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 | C9H9ClO2 |
| Molecular Weight | 184.62 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 2-(3-Chloro-4-methylphenyl)acetic acid (CAS 1000515-63-8)
- 2-(2-chloro-3-methylphenyl)acetic acid (CAS 1000518-49-9)
- 2-Chloro-5-methoxy-4-methylbenzaldehyde (CAS 100948-46-7)
- 2-Chloro-6-(cyclopropylmethoxy)pyrazine (CAS 1019493-28-7)
- 3-Chloro-6-(cyclopropylmethoxy)pyridazine (CAS 1019619-79-4)
- 2-Chloro-6-ethoxybenzaldehyde (CAS 1021230-95-4)
- 3-Chloro-4-methoxybenzimidamide (CAS 102151-35-9)
- 3-Chloro-2-methylbenzhydrazide (CAS 1022873-06-8)
Recommended Standards
- 2-(Chloromethyl)phenyl acetate (CAS 15068-08-3)
- 2-(Chloromethyl)-6,7-dihydro-3H-cyclopenta[d]pyrimidin-4(5H)-one (CAS 1518133-04-4)
- 1-(3-(Chloromethoxy)phenyl)ethan-1-one (CAS 1502858-14-1)
- Methyl 3-chloro-5-methylbenzoate (CAS 153203-53-3)
- (R)-2-(2,6-Dioxopiperidin-3-yl)-4-fluoroisoindoline-1,3-dione (CAS 2243823-26-7)
- Poly[2,5-bis(3-dodecylthiophen-2-yl)thieno[3,2-b]thiophene] (CAS 888491-18-7)
- 2-(Tert-butyl)imidazo[1,2-a]pyridine-7-carboxylic acid (CAS 1494847-56-1)
- 2-Fluoro-6-trifluoromethylaniline (CAS 144851-61-6)
- 4-Bromo-5-methoxy-1,2-dihydroisoquinolin-1-one (CAS 1207448-49-4)
- Bisazir (CAS 13687-09-7)
- 5-Azaspiro[2.5]octane Hydrochloride (CAS 1797157-33-5)
- N-(4-bromo-2-chlorophenyl)-4-methoxybenzamide (CAS 902090-93-1)
- Phenol, 4,4'-(1-methylethylidene)bis-, polymer with 2,2'-[(1-methylethylidene)bis[4,1-phenyleneoxy[1-(butoxymethyl)-2,1-ethanediyl]oxymethylene]]bis[oxirane] (CAS 110553-33-8)
- D-Thr5-Tirzepatide (CAS CATO-CPTD788926)
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