2,4-Dimethoxy-3-methylbenzene-1-sulfinic acid CAS 102333-52-8
| CAS No. | 102333-52-8 |
| Molecular Formula | C9H12O4S |
| Molecular Weight | 216.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H12O4S, 2,4-Dimethoxy-3-methylbenzene-1-sulfinic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 216.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2,4-Dimethoxy-3-methylbenzene-1-sulfinic acid (CAS 102333-52-8), molecular formula C9H12O4S and molecular weight 216.25 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C9H12O4S |
| Molecular Weight | 216.25 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Sulfur Atoms | 1 |
Related Dimethoxy Standards
- 1,2-Dimethoxy-4-(methylsulfonyl)benzene (CAS 33951-30-3)
- 1,3-Dimethoxy-5-(methylsulfonyl)benzene (CAS 38452-46-9)
- 2,2'-Dimethoxy-4,4'-bipyridine (CAS 142929-11-1)
- 2-(4,7-Dimethoxy-1H-indol-3-yl)acetonitrile (CAS 15109-37-2)
- 4,4’-Dimethoxy-2,2’-bipyridine (CAS 17217-57-1)
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- 2,4-Dimethoxy-5-phenylpyrimidine (CAS 685866-81-3)
- 4,5-Dimethoxy-2-phenylpyrimidine (CAS 477857-51-5)
Recommended Standards
- ((4-Fluorophenyl)(phenyl)methyl)hydrazine (CAS 1016741-34-6)
- 2-Fluoro-1-methyl-4-(phenylmethoxy)benzene (CAS 1036724-56-7)
- Ac-D-Arg-OH (CAS 2389-86-8)
- 4-((2,4-Difluorophenyl)thio)butan-2-one (CAS 1044062-25-0)
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- 1-(Tert-pentyl)-1H-pyrazol-4-yl dimethylcarbamate (CAS 88558-99-0)
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