Ethyl 2-amino-4-(3-hydroxyphenyl)thiophene-3-carboxylate CAS 849659-42-3
| CAS No. | 849659-42-3 |
| Molecular Formula | C13H13NO3S |
| Molecular Weight | 263.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ethyl 2-amino-4-(3-hydroxyphenyl)thiophene-3-carboxylate 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.
Ethyl 2-amino-4-(3-hydroxyphenyl)thiophene-3-carboxylate (CAS 849659-42-3), molecular formula C13H13NO3S and molecular weight 263.31 g/mol, is a CATO reference standard with documented purity and traceability.
Ethyl 2-amino-4-(3-hydroxyphenyl)thiophene-3-carboxylate (C13H13NO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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 | C13H13NO3S |
| Molecular Weight | 263.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- , 3-amino-5-(4-methoxyphenyl)-2-Thiophenecarboxylic acid, methyl ester (CAS 37572-23-9)
- Ethyl 2-amino-4-(4-hydroxyphenyl)thiophene-3-carboxylate (CAS 849659-37-6)
- Methyl 2-amino-4-(4-methoxyphenyl)thiophene-3-carboxylate (CAS 350988-34-0)
- Methyl 3-amino-4-(3-methoxyphenyl)thiophene-2-carboxylate (CAS 679425-85-5)
- Methyl 3-amino-4-(4-methoxyphenyl)thiophene-2-carboxylate (CAS 82437-65-8)
- Methyl 3-amino-5-(2-methoxyphenyl)-thiophene-2-carboxylate (CAS 354811-94-2)
- 3-Amino-4-methoxy-n-(4-methyl-1,3-thiazol-2-yl)benzamide (CAS 1016741-33-5)
- Ethyl 5-(6-amino-9H-purin-9-yl)pentanoate (CAS 102788-98-7)
Recommended Standards
- Ethyl 2-acetamidobenzo[b]thiophene-3-carboxylate (CAS 7311-77-5)
- Ethyl 2-(4-Methoxyphenyl)thiazole-4-carboxylate (CAS 57677-79-9)
- Ethyl 2-anilino-4-oxo-4,5-dihydro-3-thiophenecarboxylate (CAS 78267-15-9)
- Ethyl 2-(3-hydroxyphenyl)-4-methylthiazole-5-carboxylate (CAS 209538-87-4)
- tert-butyl (6R)-6-hydroxy-1,4-oxazepane-4-carboxylate (CAS 1260616-96-3)
- 3-Oxo-3-phenyl-2-{2-[3-(trifluoromethyl)phenyl]hydrazono}propanal (CAS 339279-39-9)
- 2-(2-Ethoxyphenyl)pyrrolidine (CAS 383127-71-7)
- Dibutylamine (CAS 111-92-2)
- Bis(Pyridin-2-Ylmethyl)Amine Dihydrochloride (CAS 2007916-80-3)
- 2-Chloro-N-methoxy-N-methylbenzamide (CAS 289686-74-4)
- 4-{3-bromo-2-methylpyrazolo[1,5-a]pyrimidin-7-yl}pyridine (CAS 860788-55-2)
- 3-((1,5-Dihydropyrido[3,2,1-ij]quinolin-3-yl)methyl)-4a,8a-dihydro-2H-chromen-4(3H)-one (CAS 7400-76-2)
- 2-Benzyl-1,2,5-thiadiazolidine 1,1-dioxide (CAS 144432-72-4)
- Semaglutide impurity 60 (CAS CATO-C4X-222660)
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