(2-Chloro-4,5-dimethoxyphenyl)methanol CAS 20624-89-9
| CAS No. | 20624-89-9 |
| Molecular Formula | C9H11ClO3 |
| Molecular Weight | 202.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (2-Chloro-4,5-dimethoxyphenyl)methanol (CAS 20624-89-9), a certified reference material (molecular formula C9H11ClO3, MW 202.63 g/mol) for analytical method development and quality control.
Structurally, (2-Chloro-4,5-dimethoxyphenyl)methanol (C9H11ClO3) 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 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 202.63 g/mol, it falls into the medium-molecular-weight range. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H11ClO3 |
| Molecular Weight | 202.63 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 1-Chloro-4-(cyclopropyldifluoromethyl)benzene (CAS 1204296-10-5)
- 2-Chloro-1,3-difluoro-5-(2-methylallyl)benzene (CAS 1256470-65-1)
- (4-Chloro-2,5-dimethoxyphenyl)methanol (CAS 1394837-77-4)
- 4-CHloro-3-(2-methoxyethoxy)phenol (CAS 1394968-35-4)
- 3-Chloro-5-(2-methoxyethoxy)phenol (CAS 1394974-97-0)
- 2-Chloro-1,3,4-trimethoxybenzene (CAS 140665-34-5)
- (3-Chloro-4,5-dimethoxyphenyl)methanol (CAS 18268-78-5)
- 2-Chloro-5-(2-methoxyethoxy)phenol (CAS 1881291-29-7)
Recommended Standards
- (2-Chloro-3,5-dimethoxyphenyl)methanol (CAS 5859-84-7)
- (3-Fluorotetrahydrofuran-3-yl)methanesulfonyl chloride (CAS 2098055-52-6)
- (2-Chloro-3,4-dimethoxyphenyl)methanol (CAS 93983-13-2)
- (5-Chloro-2,3-dimethoxyphenyl)methanol (CAS 86232-35-1)
- 5-Bromo-6-chloro-2-(trifluoromethyl)-1H-benzo[d]imidazole (CAS 39215-09-3)
- 2-Methyl-2-pentanamidopropanoic Acid (CAS 141745-54-2)
- 1-(2-Aminophenyl)azetidine-3-carboxylic acid (CAS 887595-81-5)
- 2-Methoxy-4-phenoxyaniline (CAS 267416-80-8)
- 3-(3,5-Bis(trifluoromethyl)phenyl)piperidine (CAS 1187228-26-7)
- 5-(4-Methoxyphenyl)oxazole-4-carbonyl chloride (CAS 465514-15-2)
- 4-Oxo-3,4-dihydroquinazolin-7-yl acetate (CAS 179246-13-0)
- Lubiprostone Impurity 21 (CAS CATO-C4X-113621)
- 2-(Methylamino)-1-(1-propyl-1h-pyrazol-5-yl)ethan-1-ol (CAS 1489107-05-2)
- Polyphemusin II-Derived Peptide (CAS 229030-20-0)
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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