Methyl 3-methoxy-5-[4-(methylsulfanyl)phenyl]benzoate CAS 1820609-17-3
| CAS No. | 1820609-17-3 |
| Molecular Formula | C16H16O3S |
| Molecular Weight | 288.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Methyl 3-methoxy-5-[4-(methylsulfanyl)phenyl]benzoate (CAS 1820609-17-3), molecular formula C16H16O3S and molecular weight 288.36 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Methyl 3-methoxy-5-[4-(methylsulfanyl)phenyl]benzoate (C16H16O3S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C16H16O3S |
| Molecular Weight | 288.36 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- (2E)-1-(2,5-Dimethoxyphenyl)-3-(5-methylthiophen-2-yl)prop-2-en-1-one (CAS 941717-90-4)
- 2-(2-Bromo-3-(1,3-dioxolan-2-yl)phenyl)propan-2-ol (CAS 1269411-37-1)
- benzyl N-(4-oxocyclopent-2-en-1-yl)carbamate (CAS 138499-01-1)
- 3-(5-Fluoro-2-methoxyphenyl)-3-methylbutanoic acid (CAS 1226235-15-9)
- Oleanolic acid β-D-glucopyranosyl ester (CAS 14162-53-9)
- Methyl 6-amino-5-cyclopropylpyridazine-3-carboxylate (CAS 2431997-31-6)
- tert-Butyl 5-methyl-2,7-diazaspiro[3.5]nonane-7-carboxylate hydrochloride (CAS 2177266-39-4)
- 5-Bromo-6-fluoro-3,4-dihydronaphthalen-1(2H)-one (CAS 1260007-55-3)
- 2-Methyl-1-(p-tolyl)propan-2-ol (CAS 20834-59-7)
- 6-(4-Isopropylphenyl)-4-oxo-5-hexenoic acid (CAS 303146-58-9)
- Tirzepatide Impurity 24 X TFA Salt (CAS CATO-C4X-324024)
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