Dimethyl 5-(3-fluorophenyl)-1H,3H-pyrrolo[1,2-c]thiazole-6,7-dicarboxylate 2-oxide CAS 337920-91-9
| CAS No. | 337920-91-9 |
| Molecular Formula | C16H14FNO5S |
| Molecular Weight | 351.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Dimethyl 5-(3-fluorophenyl)-1H,3H-pyrrolo[1,2-c]thiazole-6,7-dicarboxylate 2-oxide (CAS 337920-91-9), molecular formula C16H14FNO5S and molecular weight 351.35 g/mol, is a CATO reference standard with documented purity and traceability.
Dimethyl 5-(3-fluorophenyl)-1H,3H-pyrrolo[1,2-c]thiazole-6,7-dicarboxylate 2-oxide (C16H14FNO5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C16H14FNO5S |
| Molecular Weight | 351.35 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dimethyl Standards
- Dimethyl 5-(4-fluorophenyl)-1H,3H-pyrrolo[1,2-c]thiazole-6,7-dicarboxylate 2-oxide (CAS 339113-40-5)
- 1-[2,5-Dimethyl-1-(2,2,4-trimethyl-2,3-dihydro-1-benzofuran-7-yl)-1H-pyrrol-3-yl]-2,2,2-trifluoro-1-ethanone (CAS 866008-61-9)
- (2,2-Dimethyl-1,3-dioxolan-4-yl)methyl (2S)-1-(4-fluorobenzyl)-5-oxopyrrolidine-2-carboxylate (CAS 59749-40-5)
- Methyl 1,1-dimethyl-2-(5-(trifluoromethyl)pyrazin-2-yl)isoindoline-4-carboxylate (CAS 2231754-11-1)
- 2,2-Dimethyl-4-oxo-3,8,11,14,17-pentaoxa-5-azanonadecan-19-oic acid 876345-13-0 (CAS 876345-13-0)
- 903157-29-9 1-(3,4-Dimethyl-2-phenyl-2H-pyrazolo[3,4-d]pyridazin-7-yl)piperidine-3-carboxylic acid MFCD14281686 (CAS 903157-29-9)
- Ethyl 2-((1,3-dimethyl-2,4-dioxo-6-propyl-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidin-5-yl)thio)acetate (CAS 900004-91-3)
- 1,1-Dimethyl-3-(5-oxo-2-(trifluoromethyl)-5H-chromeno[2,3-b]pyridin-3-yl)urea (CAS 303995-23-5)
Recommended Standards
- 9-Methyl-2-((3-(trifluoromethyl)benzyl)thio)-4H-pyrido[1,2-a][1,3,5]triazin-4-one (CAS 306978-87-0)
- 9-(2-Ethoxyphenyl)-6,9-dihydro[1,3]dioxolo[4,5-g]furo[3,4-b]quinolin-8(5H)-one (CAS 866138-51-4)
- Ethyl 5-(cyanomethoxy)-2-(4-methoxyphenyl)benzofuran-3-carboxylate (CAS 385420-62-2)
- 8-Methyl-2-({[3-(trifluoromethyl)phenyl]methyl}sulfanyl)-4H-pyrido[1,2-a][1,3,5]triazin-4-one (CAS 306978-68-7)
- 4-Phenyl-1,4-oxazepane (CAS 54600-40-7)
- 3-amino-6-(difluoromethyl)-4-(2-furyl)thieno[2,3-b]pyridine-2-carboxamide (CAS 832739-51-2)
- Methyl 1,4-diaminocyclohexanecarboxylate (CAS 1823038-22-7)
- 2-Chloro-3-cyclopropoxy-4-methylpyridine (CAS 1243411-12-2)
- 2-((2-(Benzo[d][1,3]dioxol-5-yl)-2-oxoethyl)thio)-3-(4-methoxyphenyl)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 477330-60-2)
- (R)-tert-Butyl benzyl(2-hydroxy-3-phenylpropyl)carbamate (CAS 2766303-87-9)
- Methyl 4-(aminomethyl)-1H-pyrrole-3-carboxylate (CAS 156422-74-1)
- 15-Hydroxypentadecanehydrazide (CAS 18270-60-5)
- (S)-1-(3-fluoro-5-methoxyphenyl)-2-methylpropan-1-amine (CAS 1213636-84-0)
- Semaglutide Impurity 75 (CAS CATO-C4X-2226175)
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