Methyl 3,5-Dichloro-4-Hydroxylbenzoate CAS 3337-59-5
| CAS No. | 3337-59-5 |
| Molecular Formula | C8H6Cl2O3 |
| Molecular Weight | 221.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Methyl 3,5-Dichloro-4-Hydroxylbenzoate (CAS 3337-59-5), a certified reference material (molecular formula C8H6Cl2O3, MW 221.04 g/mol) for analytical method development and quality control.
Methyl 3,5-Dichloro-4-Hydroxylbenzoate (C8H6Cl2O3) 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, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Methyl 3,5-Dichloro-4-Hydroxylbenzoate 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 | C8H6Cl2O3 |
| Molecular Weight | 221.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), 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; Hygroscopic; reseal immediately after opening; 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.) | 1957 |
| Halogen Content | Cl-containing |
Related Methyl Standards
- 4,5-Dichloro-N-methyl-2-nitroaniline (CAS 107342-18-7)
- 2,4-Dichloro-3-methoxybenzoic acid (CAS 115382-33-7)
- Methyl 2,4-dichloro-3-hydroxybenzoate (CAS 129788-30-3)
- 4,5-Dichloro-2-(2-oxopropyl)pyridazin-3(2H)-one (CAS 130159-58-9)
- Methyl 2,6-dichloro-3-hydroxybenzoate (CAS 142601-42-1)
- 3,4-Dichloro-2-methoxybenzoic acid (CAS 155382-86-8)
- (3,4-Dichloro-2-nitrophenyl)methanamine (CAS 1804897-45-7)
- Methyl 2,4-dichloro-5-hydroxybenzoate (CAS 1806282-22-3)
Recommended Standards
- 2,4-D (CAS 94-75-7)
- Dicamba (CAS 1918-00-9)
- 2,6-D (CAS 575-90-6)
- 2,3-D (CAS 2976-74-1)
- 2-Piperidin-3-yl-1,3-benzoxazole (CAS 51785-15-0)
- N,N'-Di-1-naphthyl-N,N'-di-2-naphthylbenzidine (CAS 374592-88-8)
- N-((5-bromopyridin-3-yl)methyl)-N-methylpropan-1-amine (CAS 104290-47-3)
- 1-(2-Hydroxy-6-methoxy-3-methylphenyl)ethanone (CAS 56504-43-9)
- 4-(1H-imidazol-1-yl)butanenitrile (CAS 72338-63-7)
- Zinc2,4-pentanedionatemonohydrate (CAS 14363-15-6)
- Benzyl 4-(isopropylamino)-3-phenoxybenzoate (CAS 1346567-64-3)
- N,N-Didesmethyl Sibutramine-d7 HCl (CAS 1188263-87-7)
- 2-Chloro-4-methoxy-3-(trifluoromethyl)pyridine (CAS 1163693-02-4)
- Semaglutide impurity 199 (CAS CATO-C4X-2226199)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com