Methyl 4-chloro-5-propylthiophene-2-carboxylate CAS 1399656-69-9
| CAS No. | 1399656-69-9 |
| Molecular Formula | C9H11ClO2S |
| Molecular Weight | 218.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H11ClO2S, Methyl 4-chloro-5-propylthiophene-2-carboxylate contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 218.70 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).
Methyl 4-chloro-5-propylthiophene-2-carboxylate (CAS 1399656-69-9), molecular formula C9H11ClO2S and molecular weight 218.70 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Methyl 4-chloro-5-propylthiophene-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.
Physical & Chemical Properties
| Molecular Formula | C9H11ClO2S |
| Molecular Weight | 218.70 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 1-CHloro-4-(propylsulfonyl)-benzene (CAS 101167-08-2)
- 5-Chloro-4-(isopropylthio)-2-methylpyridazin-3(2H)-one (CAS 105651-66-9)
- 5-Chloro-2-ethyl-4-(ethylthio)pyridazin-3(2H)-one (CAS 105651-67-0)
- 2-Chloro-n-(dimethyl-1,3-thiazol-2-yl)propanamide (CAS 1154151-82-2)
- 2-Chloro-N-methyl-N-(1-(thiazol-2-yl)ethyl)acetamide (CAS 1353963-35-5)
- 4-Chloro-5-propylthiophene-2-carbohydrazide (CAS 1399655-63-0)
- 4-Chloro-5-isobutylthiophene-2-carboxylic acid (CAS 1399664-39-1)
- 1-Chloro-2-(propane-1-sulfonyl)benzene (CAS 89265-33-8)
Recommended Standards
- 5-Butyl-4-chlorothiophene-2-carboxylic acid (CAS 1399663-45-6)
- tert-Butyl 5-chlorothiophene-2-carboxylate (CAS 1344205-16-8)
- 4-N-Propylbenzenesulfonyl chloride (CAS 146949-07-7)
- 2-(((5-Chlorothiophen-2-yl)methyl)(methyl)amino)acetamide (CAS 1291666-88-0)
- 3-Bromo-4,5-diethoxy-benzylamine hydrochloride (CAS 1052510-28-7)
- Ethyl naphtho[2,1-b]furan-2-carboxylate (CAS 32730-03-3)
- 2-(2,2-Difluorocyclopropyl)phenol (CAS 1892547-74-8)
- (1R,2S)-2-(trifluoromethyl)cyclobutane-1-carboxylic acid (CAS 2165708-25-6)
- 1-{[(Pyridin-4-yl)methyl]amino}cyclohexane-1-carboxamide (CAS 1392491-68-7)
- 1-((5-Bromothiophen-2-yl)sulfonyl)-1,4-diazepane hydrochloride (CAS 1365836-42-5)
- 2-(Cyclopropylmethyl)-6-ethyl-3H,4H-thieno[2,3-d]pyrimidin-4-one (CAS 1788637-72-8)
- 9-Chloro-1,7-phenanthroline (CAS 120092-39-9)
- N-(1-BRomo-propylidene)-acetamidine (CAS 1379387-02-6)
- Glucagon receptor antagonist I (CAS 438618-32-7)
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