Methyl 2-Chloro-4-hydroxybenzoate CAS 104253-44-3
| CAS No. | 104253-44-3 |
| Molecular Formula | C8H7ClO3 |
| Molecular Weight | 186.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H7ClO3, Methyl 2-Chloro-4-hydroxybenzoate contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 186.59 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Methyl 2-Chloro-4-hydroxybenzoate (CAS 104253-44-3) is a high-purity analytical reference standard with the molecular formula C8H7ClO3 and a molecular weight of 186.59 g/mol.
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 | C8H7ClO3 |
| Molecular Weight | 186.59 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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.) | 1986 |
| Halogen Content | Cl-containing |
Related Methyl Standards
- 4-Chloro-2-(hydroxymethyl)benzoic acid (CAS 100448-59-7)
- 3-Chloro-2,4-dihydroxy-6-methylbenzaldehyde (CAS 106325-72-8)
- 2-Chloro-4-(hydroxymethyl)benzoic acid (CAS 1071989-48-4)
- Methyl 2-chloro-3-hydroxybenzoate (CAS 1125632-11-2)
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Recommended Standards
- 5-(Chloromethyl)-2-hydroxybenzoic acid (CAS 10192-87-7)
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- 3-chloro-2-(trifluoromethyl)thiophene (CAS 143469-23-2)
- 3-(Naphthalen-1-yl)prop-2-enenitrile (CAS 111686-30-7)
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- Tert-butyln-(4-chloro-3-methoxy-2-pyridyl)carbamate (CAS 2306265-33-6)
- 5-methyl-7H-pyrrolo[2,3-d]pyrimidin-4-amine (CAS 1501-10-6)
- 1-((3-Methylcyclobutyl)methyl)-1H-pyrazol-3-amine (CAS 1707391-31-8)
- tert-Butyldimethyl((3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)but-3-en-1-yl)oxy)silane (CAS 251928-73-1)
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