2-Amino-4-(3-nitrophenyl)thiophene-3-carboxylic acid CAS 899688-33-6
| CAS No. | 899688-33-6 |
| Molecular Formula | C11H8N2O4S |
| Molecular Weight | 264.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-Amino-4-(3-nitrophenyl)thiophene-3-carboxylic acid.
CATO supplies 2-Amino-4-(3-nitrophenyl)thiophene-3-carboxylic acid (CAS 899688-33-6), a certified reference material (molecular formula C11H8N2O4S, MW 264.26 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H8N2O4S, 2-Amino-4-(3-nitrophenyl)thiophene-3-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, 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 264.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C11H8N2O4S |
| Molecular Weight | 264.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 2-Amino-4-(2-nitrophenyl)thiophene-3-carboxylic acid (CAS 1956334-47-6)
- 2-Amino-4-(3-nitrophenyl)thiazole (CAS 57493-24-0)
- 4-(4-Amino-3-fluorophenoxy)-N-(methyl-d3)-2-pyridinecarboxamide (CAS 1257864-28-0)
- 6-Amino-1-benzyl-3-oxo-2,3-dihydro-1h-pyrrolo[2,3-b]pyridine-5-carbonitrile (CAS 1000931-34-9)
- 4-amino-1-(2-phenyl-2H-1,2,3-triazol-4-yl)butane-1,2,3-triol (CAS 1007978-96-2)
- 7-(2-Amino-2-oxoethyl)-1,3-dimethyl-6-oxo-6,7-dihydro-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1018046-99-5)
- 6-Amino-2-phenylquinoline-4-carboxylic Acid (CAS 109540-22-9)
- 2-Amino-7-hydroxy-4-phenyl-4H-chromene-3-carbonitrile (CAS 111861-25-7)
Recommended Standards
- 3-((4-Nitrobenzyl)thio)-1,2,4-triazin-5(4H)-one (CAS 872628-55-2)
- 2-[phenyl(pyridin-2-yl)phosphino]pyridine (CAS 68469-71-6)
- 3-(2-Fluorophenyl)-[1,2,4]triazolo[4,3-c]quinazoline (CAS 339025-73-9)
- 2-(2-(Pyrazine-2-carboxamido)thiazol-4-yl)acetic acid (CAS 926204-94-6)
- 4-Butoxy-6-chloro-3-(hydroxymethyl)-2-propylisoquinolin-1(2H)-one (CAS 447420-12-4)
- 2-(3-Fluoroazetidin-3-yl)ethan-1-ol (CAS 2098144-56-8)
- 2-Chloro-1-(4-(4-methylbenzyl)-1,4-diazepan-1-yl)ethan-1-one hydrochloride (CAS 1258649-61-4)
- 5,10,15,20-Tetra(4-pyridyl)-21H,23H-porphyrin-Co (CAS 14244-55-4)
- Ethyl 3-(4-bromo-5-methylfuran-2-yl)-3-oxopropanoate (CAS 1403564-11-3)
- 1-Phenylpropyl acetate (CAS 2114-29-6)
- tert-Butyl (2-chloro-5-methoxyphenyl)carbamate (CAS 1477844-27-1)
- 3-Amino-N-(4-chlorophenyl)benzofuran-2-carboxamide (CAS 609805-00-7)
- 2-Methyl-3-(2-oxo-2-phenylethyl)naphthalene-1,4-dione (CAS 88007-98-1)
- Fas C- Terminal Tripeptide (CAS 189109-90-8)
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