Methyl 3-amino-5-(4-nitrophenyl)thiophene-2-carboxylate CAS 91076-99-2
| CAS No. | 91076-99-2 |
| Molecular Formula | C12H10N2O4S |
| Molecular Weight | 278.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Methyl 3-amino-5-(4-nitrophenyl)thiophene-2-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.
Methyl 3-amino-5-(4-nitrophenyl)thiophene-2-carboxylate (CAS 91076-99-2) is a high-purity analytical reference standard with the molecular formula C12H10N2O4S and a molecular weight of 278.28 g/mol.
Based on its molecular formula C12H10N2O4S, Methyl 3-amino-5-(4-nitrophenyl)thiophene-2-carboxylate 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 278.28 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.
Physical & Chemical Properties
| Molecular Formula | C12H10N2O4S |
| Molecular Weight | 278.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1983 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methyl Standards
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- Methyl 2-amino-4-(4-nitrophenyl)thiophene-3-carboxylate (CAS 933674-28-3)
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- 1-[2-Amino-4-(thiophen-2-yl)-1,3-thiazol-5-yl]-2,2,2-trifluoroethan-1-one (CAS 306289-61-2)
- N-(2-Amino-2-oxoethyl)-2-(pyrimidin-2-ylamino)thiazole-4-carboxamide (CAS 1251559-61-1)
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Recommended Standards
- N-(2-Nitrophenyl)benzenesulfonamide (CAS 6933-51-3)
- Ethyl 4-(4-Nitrophenyl)thiazole-2-carboxylate (CAS 53101-04-5)
- N-(5-(3-(Furan-2-yl)acryloyl)-4-hydroxythiazol-2-yl)acetamide (CAS 62041-07-0)
- Ethyl 4-(4-fluorophenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 5937-24-6)
- 1-(2-Oxopropyl)piperidine-3-carboxylic acid (CAS 1558407-63-8)
- 3-Iodo-1H-pyrrolo[3,2-b]pyridin-7-amine (CAS 1190311-12-6)
- Prostaglandin D₂ methyl ester (CAS 49852-81-5)
- 6-Bromo-1-oxo-1,2-dihydroisoquinoline-4-sulfonyl chloride (CAS 1220229-87-7)
- 3-(tert-Butyl)-1-(quinolin-3-yl)-1H-pyrazol-5-amine (CAS 897373-63-6)
- 2,5-Diamino-9H-fluoren-9-one (CAS 46487-37-0)
- 5-Amino-2-((2-aminopyrimidin-5-yl)amino)pyrimidin-4(1H)-one (CAS 77961-39-8)
- Sodium 8-sulfonaphthalen-1-olate (CAS 20215-36-5)
- Stearyl Palmitate (CAS 2598-99-4)
- Tirzepatide Impurity 33 (CAS CATO-C4X-324033)
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