Ethyl 4,5-dichlorothiophene-2-carboxylate CAS 130562-97-9
| CAS No. | 130562-97-9 |
| Molecular Formula | C7H6Cl2O2S |
| Molecular Weight | 225.09 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-dichlorothiophene-2-carboxylate.
CATO supplies Ethyl 4,5-dichlorothiophene-2-carboxylate (CAS 130562-97-9), a certified reference material (molecular formula C7H6Cl2O2S, MW 225.09 g/mol) for analytical method development and quality control.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Ethyl 4,5-dichlorothiophene-2-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 225.09 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).
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 | C7H6Cl2O2S |
| Molecular Weight | 225.09 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.) | 1994 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- Ethyl 2,5-dichlorothiophene-3-carboxylate (CAS 130562-95-7)
- 2,3-Dichlorothiophene-5-sulfonamide (CAS 256353-34-1)
- 2,5-Dichlorothiophene-3-sulfonamide (CAS 53595-68-9)
- 2,5-Dichlorothiophene-3-sulfonic acid (CAS 738527-60-1)
- 2,5-Dichlorothiophene-3-carbonyl chloride (CAS 57248-14-3)
- 4,5-Dichlorothiophene-2-sulfonyl fluoride (CAS 108158-06-1)
- Methyl 2,5-dichlorothiophene-3-carboxylate (CAS 145129-54-0)
- 2,5-Dichlorothiophene-3-carbohydrazide (CAS 904027-75-4)
Recommended Standards
- 6-Hydroxypyridine-2-boronic Acid Pinacol Ester (CAS 1310405-04-9)
- 7-Bromo-2,5-dimethyl-1H-benzo[d]imidazole (CAS 1267628-01-2)
- 3-Bromo-2,7-dimethylimidazo[1,2-a]pyridine (CAS 1335054-56-2)
- 2-(2-Bromoethyl)imidazo[1,2-a]pyridine (CAS 1260385-84-9)
- 4-Chloro-2-(((2,5-dimethylphenyl)amino)methyl)phenol (CAS 1021104-40-4)
- 2-(Azepan-1-yl)-1-phenylethan-1-ol oxalate (CAS 4641-54-7)
- 2-Hydroxyethyl 4-methylbenzoate (CAS 28129-15-9)
- 3-Amino-4-hydroxyphenyl tetrahydrogen triphosphate (CAS 3653-53-0)
- 2-Acetoxy-2-(diethoxyphosphoryl)acetic acid (CAS 205264-44-4)
- 4,5-Dihydro-1,3,4-benzoxadiazepin-5-one (CAS 144760-61-2)
- 6-(4-Methylphenyl)-1-(propan-2-yl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 924213-53-6)
- 1-(1,4-Diazepan-1-yl)-2,2,2-trifluoroethan-1-one (CAS 1177329-26-8)
- tert-Butyl 3,4-cis-4-(benzylamino)-3-fluoropiperidine-1-carboxylate racemate (CAS 577691-61-3)
- His-Cyclic-Semaglutide (CAS CATO-C4X-2226182)
Why CATO?
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