Methyl 2-methoxy-4-mercaptobenzoate CAS 216489-60-0
| CAS No. | 216489-60-0 |
| Molecular Formula | C9H10O3S |
| Molecular Weight | 198.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 2-methoxy-4-mercaptobenzoate (CAS 216489-60-0), molecular formula C9H10O3S and molecular weight 198.24 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Methyl 2-methoxy-4-mercaptobenzoate (C9H10O3S) contains a sulfone group, 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 198.24 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Methyl 2-methoxy-4-mercaptobenzoate 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 | C9H10O3S |
| Molecular Weight | 198.24 g/mol |
| 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.) | 2018 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 3-Methoxy-5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxylic acid (CAS 120715-47-1)
- 4-methoxyÂÂphenyl vinylsulfoÂne (CAS 16191-87-0)
- 2-Methoxy-3-(methylthio)benzoic acid (CAS 343331-66-8)
- 2-Methoxy-4-(methylsulfanyl)benzoic acid (CAS 72856-73-6)
- 2-Methoxy-5-methylthiobenzoicacid (CAS 61694-97-1)
- 4-Methoxy-3-(methylthio)benzoic acid (CAS 87346-53-0)
- (4-Methoxy-6-methyl-2-pyrimidinyl)thiourea (CAS 93744-72-0)
- (2E)-3-(3-methoxy-4-methylphenyl)prop-2-enoic acid (CAS 132980-20-2)
Recommended Standards
- Methyl 2-mercapto-6-methoxybenzoate (CAS 944060-98-4)
- methyl 2-methyl-3-oxo-3-(thiophen-2-yl)propanoate (CAS 60848-31-9)
- Methyl 2-mercapto-5-methoxybenzoate (CAS 55114-90-4)
- Methyl 4-(methylsulfinyl)benzoate (CAS 51885-86-0)
- 6,7-Dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-2-amine (CAS 1779573-25-9)
- 1-(1-(4-Bromophenyl)ethyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1707609-29-7)
- 4-(1,1-Dioxido-1,2-thiazinan-2-yl)benzoic acid (CAS 22230-37-1)
- N,N,2-Trimethylpyrimidin-4-amine (CAS 5053-40-7)
- 3-(4-Chloro-6-(trifluoromethyl)pyridin-3-yl)propan-1-amine (CAS 1393546-91-2)
- tert-butyl 3-(hydroxymethyl)-2-methyl-2,3-dihydro-1H-indole-1-carboxylate (CAS 2736281-46-0)
- Carbidopa Impurity 20 (CAS CATO-C4X-231020)
- 6-Fluoro-1-(fluoromethyl)-1H-benzo[d]imidazole-2-carbaldehyde (CAS 118469-18-4)
- (S)-Methyl 2-(6-amino-2,3-dihydrobenzofuran-3-yl)acetate (CAS 1258399-01-7)
- C-telopeptide (CAS 162929-64-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com