Ethyl 4,5-bis(chloromethyl)thiophene-2-carboxylate CAS 57841-07-3
| CAS No. | 57841-07-3 |
| Molecular Formula | C9H10Cl2O2S |
| Molecular Weight | 253.15 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 Ethyl 4,5-bis(chloromethyl)thiophene-2-carboxylate.
Ethyl 4,5-bis(chloromethyl)thiophene-2-carboxylate (CAS 57841-07-3) is a high-purity analytical reference standard with the molecular formula C9H10Cl2O2S and a molecular weight of 253.15 g/mol.
Structurally, Ethyl 4,5-bis(chloromethyl)thiophene-2-carboxylate (C9H10Cl2O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 253.15 g/mol, it falls into the medium-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Ethyl 4,5-bis(chloromethyl)thiophene-2-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H10Cl2O2S |
| Molecular Weight | 253.15 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.) | 1973 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Recommended Standards
- 6-(2,2,3,3-tetrafluoropropoxy)pyridine-3-carboxylic acid (CAS 223127-25-1)
- 3-[4-(Bromomethyl)phenyl]thiophene (CAS 108912-09-0)
- 4-(3-chloropropyl)benzene-1-sulfonyl chloride (CAS 7296-67-5)
- 2-(4-Bromobenzyl)thiophene (CAS 118150-25-7)
- 4-Hydroxy-6-(trifluoromethyl)-2H-pyran-2-one (CAS 387866-40-2)
- Ethyl 3-bromo-2-(bromomethyl)-6-hydroxy-4-methoxybenzoate (CAS 99859-57-1)
- 2-(Phenylimino)-1,3-thiazolidin-4-one (CAS 1253116-39-0)
- 6-Chloro-N-methyl-4-(trifluoromethyl)pyridin-2-amine (CAS 1208081-32-6)
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Why CATO?
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