Methyl 2-(2-chloroacetamido)-4H,5H,6H,7H,8H-cyclohepta[b]thiophene-3-carboxylate CAS 438029-03-9
| CAS No. | 438029-03-9 |
| Molecular Formula | C13H16ClNO3S |
| Molecular Weight | 301.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Methyl 2-(2-chloroacetamido)-4H,5H,6H,7H,8H-cyclohepta[b]thiophene-3-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 301.79 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Methyl 2-(2-chloroacetamido)-4H,5H,6H,7H,8H-cyclohepta[b]thiophene-3-carboxylate (CAS 438029-03-9), a certified reference material (molecular formula C13H16ClNO3S, MW 301.79 g/mol) for analytical method development and quality control.
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 | C13H16ClNO3S |
| Molecular Weight | 301.79 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Ethyl 2-(2-chloroacetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 60442-41-3)
- Methyl 2-(2-chloroacetamido)-6-methyl-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate (CAS 448226-78-6)
- 3-(2-chloroacetamido)-4-methyl-N-phenylbenzamide (CAS 1803609-27-9)
- 2-(2-Chloroacetamido)-n-(3-methylphenyl)benzamide (CAS 22312-75-0)
- Ethyl 2-(2-chloroacetamido)-4-(2-methylpropyl)thiophene-3-carboxylate (CAS 554423-83-5)
- 1-(Chloroacetamido)anthraquinone (CAS 20149-91-1)
- 3-(2-Chloroacetamido)-4-methoxybenzene-1-sulfonyl chloride (CAS 728864-70-8)
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Recommended Standards
- 5-Benzyl-4-(4-chlorophenyl)-4H-1,2,4-triazol-3-yl hydrosulfide (CAS 451501-91-0)
- Methyl 2-(2-chloropropanamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 731012-07-0)
- 5-{[(4-chlorophenyl)sulfanyl]methyl}-3-phenyl-1,2-oxazole (CAS 338962-43-9)
- N-benzyl-2-chloro-N-(1,1-dioxidotetrahydrothiophen-3-yl)acetamide (CAS 453576-43-7)
- Ethyl 7-(3,5-bis(trifluoromethyl)phenyl)-7-oxoheptanoate (CAS 898793-00-5)
- 1-(4-Methoxyphenyl)-2-(4-nitro-1h-pyrazol-1-yl)ethan-1-one (CAS 1006571-64-7)
- 2-(4-Methyl-2-(piperidin-1-yl)thiazol-5-yl)ethan-1-amine (CAS 1267487-77-3)
- (E)-3-(2-methoxy-3-nitrophenyl)-2-propenoic acid (CAS 1262012-28-1)
- 1-(Bromomethyl)-5-fluoro-2-methyl-3-nitrobenzene (CAS 1378873-31-4)
- 2-Chloro-1-(2-(4-fluorophenyl)morpholino)ethan-1-one (CAS 1184681-93-3)
- 3-[(3-Phenylpropoxy)methyl]pyrrolidine (CAS 946682-20-8)
- Pesticide Mix 33 (CAS CATO-MCPD103109-AL)
- 1-(2-((3-Methylbenzyl)thio)-4,5-dihydro-1H-imidazol-1-yl)-2-phenoxyethan-1-one (CAS 851803-55-9)
- Semaglutide impurity 276 (CAS CATO-C4X-2226276)
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