Ethyl 4-aminothiophene-2-carboxylate CAS 67998-24-7
| CAS No. | 67998-24-7 |
| Molecular Formula | C7H9NO2S |
| Molecular Weight | 171.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 171.22 g/mol gives Ethyl 4-aminothiophene-2-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Ethyl 4-aminothiophene-2-carboxylate (CAS 67998-24-7), a certified reference material (molecular formula C7H9NO2S, MW 171.22 g/mol) for analytical method development and quality control.
The molecular framework of Ethyl 4-aminothiophene-2-carboxylate (C7H9NO2S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Ethyl 4-aminothiophene-2-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.
Physical & Chemical Properties
| Molecular Formula | C7H9NO2S |
| Molecular Weight | 171.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- Ethyl 4-aminothiophene-3-carboxylate (CAS 158460-99-2)
- Ethyl 2-Aminothiophene-3-carboxylate (CAS 31891-06-2)
- Ethyl 3-aminothiophene-2-carboxylate (CAS 31823-64-0)
- Ethyl 5-aminothiophene-2-carboxylate (CAS 67318-11-0)
- Ethyl 5-aminothiophene-3-carboxylate (CAS 385785-52-4)
- 5-Aminothiophene-2-sulfonamide (CAS 17510-79-1)
- 4-Aminothiophene-2-sulfonamide (CAS 17510-80-4)
- methyl 4-aminothiophene-3-carboxylate (CAS 69363-85-5)
Recommended Standards
- Ethyl 4-methylthiazole-2-carboxylate (CAS 7210-73-3)
- Ethyl 2-methyl-1,3-thiazole-4-carboxylate (CAS 6436-59-5)
- Ethyl 2-(thiazol-5-yl)acetate (CAS 858487-08-8)
- Ethyl 5-methylthiazole-2-carboxylate (CAS 58334-08-0)
- 4-[4-(naphthalene-2-sulfonyl)piperazin-1-yl]-4-oxobutanoic acid (CAS 554442-47-6)
- (Z)-4-((Benzylthio)methylene)-3-methylisoxazol-5(4H)-one (CAS 61861-46-9)
- 5-(tert-Butyl)-2-methoxybenzenesulfonyl Chloride (CAS 88041-83-2)
- 2-Chloro-3-hydroxybenzaldehyde (CAS 56962-10-8)
- (R)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(pyridin-4-ylmethyl)propanoic acid (CAS 1260607-22-4)
- 3,4-Dimethoxybenzenesulfonohydrazide (CAS 23095-32-1)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-methyl-1H-indol-3-yl)propanoic acid (CAS 460751-70-6)
- (Dodecylsulfanyl)methanimidamide hydrobromide (CAS 3545-42-4)
- N-24:0 (2R-OH) Phytosphingosine (CAS 154801-30-6)
- Hexapeptide-1 (CAS CATO-CPTD788821)
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