2-(Naphthalene-2-sulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid CAS 166167-85-7
| CAS No. | 166167-85-7 |
| Molecular Formula | C20H17NO4S |
| Molecular Weight | 367.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(Naphthalene-2-sulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (CAS 166167-85-7), molecular formula C20H17NO4S and molecular weight 367.42 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H17NO4S, 2-(Naphthalene-2-sulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 367.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 2-(Naphthalene-2-sulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid 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 | C20H17NO4S |
| Molecular Weight | 367.42 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Naphthalene Standards
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- n'-(Naphthalene-2-sulfonyl)-1,3-dioxaindane-5-carbohydrazide (CAS 930532-29-9)
- Naphthalene-2,7-diyl bis(diethylcarbamate) (CAS 526190-47-6)
Recommended Standards
- 5-Ethyl-N-(3-fluorophenyl)-11-oxo-5H,5aH,6H,7H,8H,9H,11H-pyrido[2,1-b]quinazoline-3-carboxamide (CAS 1574639-77-2)
- Ethyl 8-cyano-7-methoxy-2-(phenylthiomethyl)imidazo[1,2-a]pyridine-3-carboxylate (CAS 1704066-58-9)
- 5-Ethyl-N-(4-fluorophenyl)-11-oxo-5H,5aH,6H,7H,8H,9H,11H-pyrido[2,1-b]quinazoline-3-carboxamide (CAS 1574619-29-6)
- N-(4-Fluorophenyl)-5-methyl-12-oxo-5H,5aH,6H,7H,8H,9H,10H,12H-azepino[2,1-b]quinazoline-3-carboxamide (CAS 1775408-63-3)
- Methyl 4-(2,2,2-trifluoroacetyl)benzoate (CAS 62263-12-1)
- 4-[(2-Bromoacetyl)amino]-N-methyl-N-phenylbenzamide (CAS 1138443-03-4)
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- (R)-N-methyl-N-(prop-2-yn-1-yl)-2,3-dihydro-1H-inden-1-amine (CAS 124192-87-6)
- 4-[4-(3-Methoxybenzoyl)piperazin-1-yl]benzonitrile (CAS 478046-87-6)
- Methyl 3-(2-methoxy-4-methylphenyl)-3-oxopropanoate (CAS 1435465-25-0)
- Des-Gln19-Tirzepatide (CAS CATO-CPTD788954)
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