ethyl 2-amino-5-methyl-4-(2-methylbutyl)thiophene-3-carboxylate CAS 733030-91-6
| CAS No. | 733030-91-6 |
| Molecular Formula | C13H21NO2S |
| Molecular Weight | 255.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures ethyl 2-amino-5-methyl-4-(2-methylbutyl)thiophene-3-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
ethyl 2-amino-5-methyl-4-(2-methylbutyl)thiophene-3-carboxylate (CAS 733030-91-6), molecular formula C13H21NO2S and molecular weight 255.38 g/mol, is a CATO reference standard with documented purity and traceability.
ethyl 2-amino-5-methyl-4-(2-methylbutyl)thiophene-3-carboxylate (C13H21NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
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.
Physical & Chemical Properties
| Molecular Formula | C13H21NO2S |
| Molecular Weight | 255.38 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- N,N-Diisopropyl-4-methylbenzenesulfonamide (CAS 73732-23-7)
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- N-Cycloheptyl-2-[(4,5-dihydro-1H-imidazol-2-yl)thio]acetamide (CAS 750621-52-4)
- 4-Ethyl-N-pentylbenzene-1-sulfonamide (CAS 898058-52-1)
- 2,4,5-Trimethoxybenzyl alcohol (CAS 30038-31-4)
- N1-(3-methylpyridin-4-yl)ethane-1,2-diamine (CAS 915922-09-7)
- Methyl 3-methyl-1-(4-methylbenzyl)-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1011399-01-1)
- 3-Chloro-N-(2,4-dichlorophenyl)propanamide (CAS 346724-13-8)
- Ethyl 1-[4-nitro-2-(1H-pyrrol-1-yl)-phenyl]piperidine-4-carboxylate (CAS 1992986-10-3)
- N-(2-Aminoethyl)-N-(2-(thiophen-2-yl)ethyl)isoquinoline-5-sulfonamide (CAS 651307-18-5)
- (S)-(5-Oxopyrrolidin-2-yl)methyl methanesulfonate (CAS 93288-20-1)
- 2-Chloro-N-(pentafluorophenyl)acetamide (CAS 70426-73-2)
- 5-Methyl-2-(quinolin-3-yl)thiazole (CAS 810690-11-0)
- Semaglutide impurity 88 (CAS CATO-C4X-222688)
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