Sodium 2-methoxy-5-methylbenzene-1-sulfinate CAS 82635-16-3
| CAS No. | 82635-16-3 |
| Molecular Formula | C8H9O3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Sodium 2-methoxy-5-methylbenzene-1-sulfinate (CAS 82635-16-3) is a high-purity analytical reference standard with the molecular formula C8H9O3SNa and a molecular weight of 208.21 g/mol.
Based on its molecular formula C8H9O3SNa, Sodium 2-methoxy-5-methylbenzene-1-sulfinate 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 208.21 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).
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 | C8H9O3S Na |
| Molecular Weight | 208.21 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Sulfur Atoms | 1 |
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Recommended Standards
- N-(2-Methyl-4-nitrophenyl)pyrazine-2-carboxamide (CAS 546072-02-0)
- 135449-26-2 KS-00003ATN diethyl 5-amino-3-phenyl[1,2,4]triazolo[4,3-a]pyridine-6,8-dicarboxylate (CAS 135449-26-2)
- Guanabenz (hydrochloride) (CAS 23113-43-1)
- Fmoc-(S)-3-Amino-4-(4-Trifluoromethyl-phenyl)-butyric acid (CAS 270065-81-1)
- 2-(2-bromophenoxy)pyridin-4-amine (CAS 1249644-44-7)
- tert-Butyl (3-oxotetrahydro-2H-pyran-4-yl)carbamate (CAS 477584-42-2)
- 2,6-Dichloro-4-(trichloromethyl)pyridine (CAS 22652-14-8)
- 4-(4-Iodobenzyl)morpholine (CAS 299159-27-6)
- 3-[2-(Morpholin-4-yl)ethyl]-3,4-dihydro-1,2,3-benzotriazin-4-one (CAS 854161-41-4)
- (Met(O)2?)-Glucagon (1-29) (human, rat, porcine) (CAS 75217-63-9)
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