4-Methyl-3-(3-nitrobenzamido)thiophene-2-carboxylic acid CAS 866152-23-0
| CAS No. | 866152-23-0 |
| Molecular Formula | C13H10N2O5S |
| Molecular Weight | 306.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Methyl-3-(3-nitrobenzamido)thiophene-2-carboxylic acid (CAS 866152-23-0), a certified reference material (molecular formula C13H10N2O5S, MW 306.29 g/mol) for analytical method development and quality control.
Based on its molecular formula C13H10N2O5S, 4-Methyl-3-(3-nitrobenzamido)thiophene-2-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 306.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
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 | C13H10N2O5S |
| Molecular Weight | 306.29 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 3-(3-nitrobenzamido)thiophene-2-carboxylate (CAS 352700-30-2)
- Methyl 2-(3-nitrobenzamido)benzoate (CAS 82525-37-9)
- Ethyl 4-(4-nitrobenzamido)benzoate (CAS 50888-97-6)
- (R)-2-(4-Nitrobenzamido)pentanedioic acid (CAS 85646-44-2)
- 1-(4-Nitrobenzamido)-5-oxopyrrolidine-3-carboxylic acid (CAS 894622-67-4)
- Ethyl 2-(2-nitrobenzamido)thiazole-4-carboxylate (CAS 324538-45-6)
- 3-(4-Nitrobenzamido)benzene-1-sulfonyl fluoride (CAS 19160-14-6)
- 3-(3-Nitrobenzamido)benzene-1-sulfonyl fluoride (CAS 19160-16-8)
Recommended Standards
- 4-(Dimethylamino)-2-((4-(trifluoromethyl)phenyl)amino)nicotinonitrile (CAS 338773-40-3)
- 5,7-Dimethyl-6-(3-(trifluoromethyl)benzyl)-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 439111-25-8)
- 3-(Diphenylphosphino)benzoic acid (CAS 2129-30-8)
- 6-Fluoro-1-methyl-7-morpholino-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 70459-08-4)
- 5-Oxo-5-{3-[(propylamino)carbonyl]-anilino}pentanoic acid (CAS 940458-86-6)
- PHYSALIN L (CAS 113146-74-0)
- (R)-2-amino-2-(3,5-bis(trifluoromethyl)phenyl)ethan-1-ol (CAS 1213848-30-6)
- 1-Cyclopropyl-N-((5-methylthiophen-2-yl)methyl)methanamine (CAS 937651-02-0)
- 3-(3,5-Bis(trifluoromethyl)phenyl)-1H-pyrazole (CAS 154258-54-5)
- Zoledronic Acid EP Impurity B Chloride (CAS 2043362-88-3)
- 5-(1-Methylhydrazinyl)-1,2,3-thiadiazole (CAS 1147979-33-6)
- 4,5-Dichloro-6-methoxy-2-methylpyrimidine (CAS 126804-42-0)
- 2-{1H-pyrrolo[2,3-b]pyridin-1-yl}acetic acid (CAS 1048913-13-8)
- Acetyl tetrapeptide-9(Dermican LS 9837) (CAS 928006-50-2)
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