[2-(4-Ethoxy-benzenesulfonyl)-1,2,3,4-tetrahydro-isoquinolin-1-yl]-acetic acid CAS 554439-43-9
| CAS No. | 554439-43-9 |
| Molecular Formula | C19H21NO5S |
| Molecular Weight | 375.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
[2-(4-Ethoxy-benzenesulfonyl)-1,2,3,4-tetrahydro-isoquinolin-1-yl]-acetic acid (C19H21NO5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
[2-(4-Ethoxy-benzenesulfonyl)-1,2,3,4-tetrahydro-isoquinolin-1-yl]-acetic acid (CAS 554439-43-9), molecular formula C19H21NO5S and molecular weight 375.44 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 | C19H21NO5S |
| Molecular Weight | 375.44 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethoxy Standards
- 2-(2-Ethoxy-4-formylphenoxy)-N,N-diphenylacetamide (CAS 247592-96-7)
- 4-Ethoxy-3,5-diiodopyridine (CAS 767333-76-6)
- 4-Ethoxy-2-(piperazin-1-yl)-7-(pyridin-4-yl)-5H-pyrimido[5,4-b]indole (CAS 1034194-07-4)
- N-(6-Ethoxy-3-(2-ethoxyethyl)benzo[d]thiazol-2(3H)-ylidene)cyclohexanecarboxamide (CAS 865174-30-7)
- 4-Ethoxy-6-methoxy-2-methyl-1-tosyl-1,2-dihydroquinoline (CAS 34129-49-2)
- 2-(3-Ethoxy-4-propoxybenzylidene)-6-methyl-2H-thiazolo[3,2-b][1,2,4]triazine-3,7-dione (CAS 617694-39-0)
- 4-Ethoxy-3-(3-(4-fluorophenyl)ureido)benzene-1-sulfonyl chloride (CAS 678186-02-2)
- Ethyl (2-ethoxy-4-formyl-6-iodophenoxy)acetate (CAS 428837-88-1)
Recommended Standards
- (Z)-3-(4-Methoxypyridin-1-ium-1-yl)-1,4-dioxo-1,4-diphenylbut-2-ene-2-thiolate (CAS 2377723-52-7)
- 1-[(2-methoxyphenyl)sulfonyl]-4-phenylpiperidine-4-carboxylic acid (CAS 793727-34-1)
- (S)-2-Nitro-N-(1-phenyl-2-(pyrrolidin-1-yl)ethyl)benzenesulfonamide (CAS 675602-60-5)
- 2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 2-(3-oxo-2,3-dihydro-4H-benzo[b][1,4]thiazin-4-yl)acetate (CAS 874011-01-5)
- 2-(5-Fluoro-4-methylpyridin-2-yl)acetonitrile (CAS 1427411-56-0)
- AM694 3-Iodo Isomer (CAS 1427325-91-4)
- Progesterone Bisnoraldehyde Impurity (CAS 81201-82-3)
- Fumagillol (CAS 108102-51-8)
- (S)-1-(4-Ethoxy-3-methoxyphenyl)ethan-1-ol (CAS 1344925-32-1)
- N-[(3,4-Dimethoxyphenyl)methyl]-2-[[(1S)-2-hydroxy-1-methylethyl]amino]-5-nitro-benzamide (CAS 247567-47-1)
- (2E)-3-(2,4-Dimethylphenyl)-N-(4-iodophenyl)prop-2-enamide (CAS 329778-40-7)
- Methyl 3-(butylamino)-4-methylbenzoate (CAS 1152619-90-3)
- 2-Bromo-n-cycloheptyl-3-methylbutanamide (CAS 1098361-68-2)
- Semaglutide Impurity 133 (CAS CATO-C4X-2226133)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com