(S)-6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid--4-methylbenzenesulfonic acid CAS 312623-76-0
| CAS No. | 312623-76-0 |
| Molecular Formula | C12H15NO4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of (S)-6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid--4-methylbenzenesulfonic acid (C12H15NO4C7H8O3S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
(S)-6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid--4-methylbenzenesulfonic acid (CAS 312623-76-0), molecular formula C12H15NO4C7H8O3S and molecular weight 409.45 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 | C12H15NO4 C7H8O3S |
| Molecular Weight | 409.45 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related S Standards
- 6,7-Dimethoxy-1,4-phthalazinediol (CAS 10001-35-1)
- 6,7-Dimethoxy-4-methylphthalazin-1(2H)-one (CAS 10001-36-2)
- 3-Benzyl-9,9-dimethoxy-3-azabicyclo[3.3.1]nonane (CAS 1000931-10-1)
- 4,7-Dimethoxy-1-methylquinolin-2(1H)-one (CAS 100192-50-5)
- 2-(4,5-Dimethoxy-2-nitrophenyl)succinic acid (CAS 100193-44-0)
- 2,7-dimethoxy-1,5-naphthyridine (CAS 1003944-36-2)
- 6,7-Dimethoxy-1H-indene-3-carbonitrile (CAS 100449-12-5)
- 5-(5,6-Dimethoxy-1H-benzo[d]imidazol-1-yl)-3-((2-(methylsulfonyl)benzyl)oxy)thiophene-2-carboxylic acid (CAS 1007698-63-6)
Recommended Standards
- 3,4-Dichloro-N-isopentylbenzamide (CAS 33763-70-1)
- 4-[(1-methyl-1h-imidazol-2-yl)methoxy]aniline (CAS 1146290-31-4)
- Procyclidine D5 (CAS CATO-C3D-262646)
- 3-((6-Methylpyridin-3-yl)oxy)propan-1-amine (CAS 1249234-26-1)
- (R)-3-Aminopiperidin-2-one (CAS 88763-76-2)
- Methyl 6-methylpyrazolo[1,5-a]pyridine-3-carboxylate (CAS 127717-18-4)
- 6-Oxo-6-(4-n-propoxyphenyl)hexanoic acid (CAS 898792-12-6)
- 4-Chloro-N-cyclohexylbenzenesulfonamide (CAS 7454-53-7)
- Tert-butyl 6-oxo-1-azaspiro[3.4]Octane-1-carboxylate (CAS 2306272-95-5)
- Semaglutide-d8 Tetratrifluoroacetate (CAS CATO-C4X-222617)
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