16807-37-7 2-Mercapto-5-methoxybenzoic Acid 5-Methoxythiosalicylic Acid 6-Mercapto-m-anisic Acid NSC 372684 CAS 16807-37-7
| CAS No. | 16807-37-7 |
| Molecular Formula | C8H8O3S |
| Molecular Weight | 184.21 g/mol |
| 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.
16807-37-7 2-Mercapto-5-methoxybenzoic Acid 5-Methoxythiosalicylic Acid 6-Mercapto-m-anisic Acid NSC 372684 (CAS 16807-37-7), molecular formula C8H8O3S and molecular weight 184.21 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H8O3S, 16807-37-7 2-Mercapto-5-methoxybenzoic Acid 5-Methoxythiosalicylic Acid 6-Mercapto-m-anisic Acid NSC 372684 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 184.21 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).
As a certified reference material (CRM), 16807-37-7 2-Mercapto-5-methoxybenzoic Acid 5-Methoxythiosalicylic Acid 6-Mercapto-m-anisic Acid NSC 372684 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 | C8H8O3S |
| Molecular Weight | 184.21 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.) | 1961 |
| Sulfur Atoms | 1 |
Related Mercapto Standards
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- Methyl 2,5-difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (CAS 1529775-71-0)
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- Semaglutide impurity 197 (CAS CATO-C4X-2226197)
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