4-Methyl-2-(2-thienyl)thiazole-5-carboxylic Acid CAS 209540-08-9
| CAS No. | 209540-08-9 |
| Molecular Formula | C9H7NO2S2 |
| Molecular Weight | 225.29 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 4-Methyl-2-(2-thienyl)thiazole-5-carboxylic Acid.
4-Methyl-2-(2-thienyl)thiazole-5-carboxylic Acid (CAS 209540-08-9) is a high-purity analytical reference standard with the molecular formula C9H7NO2S2 and a molecular weight of 225.29 g/mol.
4-Methyl-2-(2-thienyl)thiazole-5-carboxylic Acid (C9H7NO2S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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).
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 | C9H7NO2S2 |
| Molecular Weight | 225.29 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2016 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Methyl Standards
- 2-Oxo-5-(2-thienyl)-1,3,4-oxadiazole-3(2H)-acetic acid (CAS 869464-87-9)
- 735225-85-1 N-[4-(2-Thienyl)-1,3-thiazol-2-yl]guanidine MFCD18453759 (CAS 735225-85-1)
- Ethyl 3-(2-thienyl)-1,2,4-oxadiazole-5-carboxylate (CAS 261626-93-1)
- 2-(5-Methyl-2-thienyl)-2-morpholinoethylamine (CAS 1094226-79-5)
- 3-(5-Acetyl-2-thienyl)benzonitrile (CAS 893741-59-8)
- 5-(2-Thienyl)-1H-indole-3-carbaldehyde (CAS 893734-01-5)
- 5-(3-Thienyl)-1H-indole-3-carbaldehyde (CAS 893733-97-6)
- 5-[2-(2-Thienyl)ethyl]-1,4,5,6-tetrahydro-1,3,5-triazine-2-thiol (CAS 879617-91-1)
Recommended Standards
- 4-Cyclopropyl-6,7-dimethyl-1,4-dihydroquinazoline-8-carbonitrile (CAS 89638-32-4)
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- 4-Amino-4-methoxystilbene (CAS 7314-07-0)
- 4-Methyl-2-[2-(4-methylphenyl)diazenyl]benzenamine (CAS 58010-91-6)
- (1-Methyl-2-phenylpyrrolidin-3-yl)methanamine dihydrochloride (CAS 1306605-27-5)
- 4,6-Dihydroxypyrimidine (CAS 1193-24-4)
- 5-Iodo-2-methoxythiazole (CAS 2137792-51-7)
- AM-1638 (CAS 1142214-62-7)
- N-methyl-5-(pyridin-3-yl)-1H-pyrazol-3-amine (CAS 1350478-98-6)
- 7-Azaindole-6-carbonitrile (CAS 189882-33-5)
- 30465-68-0 AR-1J9445 n-(5-{[2-(2,5-dioxopyrrolidin-1-yl)ethyl](ethyl)amino}-2-[(e)-(4-nitrophenyl)diazenyl]phenyl)acetamide (CAS 30465-68-0)
- 5-Bromo-2-ethoxynicotinaldehyde (CAS 1242070-94-5)
- (3R,4S,5S)-Tert-butyl 4-(((benzyloxy)carbonyl)(methyl)amino)-3-methoxy-5-methylheptanoate (CAS 120205-58-5)
- Compstatin control peptide (CAS 301544-78-5)
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