Ethyl 2-hydroxy-3-methylbenzoate CAS 55211-85-3
| CAS No. | 55211-85-3 |
| Molecular Formula | C10H12O3 |
| Molecular Weight | 180.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 2-hydroxy-3-methylbenzoate.
CATO supplies Ethyl 2-hydroxy-3-methylbenzoate (CAS 55211-85-3), a certified reference material (molecular formula C10H12O3, MW 180.20 g/mol) for analytical method development and quality control.
Structurally, Ethyl 2-hydroxy-3-methylbenzoate (C10H12O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 180.20 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
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 | C10H12O3 |
| Molecular Weight | 180.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
Related Ethyl Standards
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- 4-Hydroxy-3-propoxybenzaldehyde (CAS 110943-74-3)
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Recommended Standards
- Ethyl 2-ethylpyrimidine-5-carboxylate (CAS 72790-13-7)
- Ethyl 2-hydroxy-5-methylbenzoate (CAS 34265-58-2)
- Ethyl 2-amino-6-methylisonicotinate (CAS 900799-95-3)
- Ethyl 2-Hydroxyphenylacetate (CAS 41873-65-8)
- 2-Benzyl-2,6-diazaspiro[3.4]Octan-7-one (CAS 1392211-22-1)
- 2-[2-(furan-2-yl)ethyl]-3h-imidazo[4,5-b]pyridin-5-amine (CAS 1523531-44-3)
- 3-(Imidazo[1,2-a]pyridin-2-yl)-2,2-dimethylpropanoic acid (CAS 1510096-67-9)
- 4-hydroxypentan-2-one (CAS 4161-60-8)
- 2-Methyl-2-(tetrahydro-2H-pyran-2-yl)propan-1-amine (CAS 1384782-50-6)
- 1'-Benzyl-6-chloro-3H-spiro[furo[3,4-c]pyridine-1,4'-piperidin]-3-one (CAS 1017598-71-8)
- 1-(6-Chloro-5-nitropyridin-3-yl)ethan-1-one (CAS 127356-40-5)
- methyl 5-fluoro-1H-pyrrolo[2,3-b]pyridine-2-carboxylate (CAS 1234616-72-8)
- 3-Quinuclidinylxanthene-9-carboxylic acid hemioxalate salt (CAS 82326-74-7)
- D-Val23-Tirzepatide (CAS CATO-CPTD788911)
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