3,4-Dichlorothiophene 1,1-dioxide CAS 52819-14-4
| CAS No. | 52819-14-4 |
| Molecular Formula | C4H2Cl2O2S |
| Molecular Weight | 185.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
3,4-Dichlorothiophene 1,1-dioxide (CAS 52819-14-4), molecular formula C4H2Cl2O2S and molecular weight 185.03 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C4H2Cl2O2S, 3,4-Dichlorothiophene 1,1-dioxide contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 185.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 3,4-Dichlorothiophene 1,1-dioxide 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 | C4H2Cl2O2S |
| Molecular Weight | 185.03 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichlorothiophene Standards
- 2,5-dichlorothiophene-3-carbaldehyde (CAS 61200-60-0)
- 3,4-Dichlorothiophene-2-carbaldehyde (CAS 67482-50-2)
- 3,5-Dichlorothiophene-2-carbaldehyde (CAS 67482-51-3)
- 4,5-Dichlorothiophene-3-carbaldehyde (CAS 61200-59-7)
- 4,5-dichlorothiophene-3-carbonitrile (CAS 1510984-04-9)
- 3-Acetyl-2,5-dichlorothiophene (CAS 36157-40-1)
- 4,5-Dichlorothiophene-3-carboxylic acid (CAS 123418-70-2)
- 2,4-Dichlorothiophene-3-carboxylic acid (CAS 1934940-61-0)
Recommended Standards
- {2-methyl-2H-pyrazolo[3,4-b]pyridin-5-yl}boronic acid (CAS 2304634-03-3)
- 2844-89-5 Cyclohexyldichlorophosphine Cyclohexylphosphonous dichloride Cyclohexylphosphorus dichloride Dichlorocyclohexylphosphin (CAS 2844-89-5)
- 2-acetamidobenzeneboronic acid (CAS 169760-16-1)
- 3-Acetamidobenzeneboronic acid (3-acetylaminophenyl)boronic acid 3-acetamidophenylboronic acid n-[3-(dihydroxyboranyl)phenyl]acetamide 3-acetylaminophenyl boronic acid m-acetamidophenylboronic acid 78887-39-5 (CAS 78887-39-5)
- 1,2-Bis(2-bromophenyl)-5,6,7,8-tetrahydroquinazoline-4(1H)-thione (CAS 62721-85-1)
- 1-(2-chloroethyl)-4-methylbenzene (CAS 32327-68-7)
- 1-{4-[(2E)-3-(Dimethylamino)prop-2-enoyl]phenyl}-1H-pyrrole-2,5-dione (CAS 1306753-55-8)
- [U-Ring-13C6]-1-Chloro-2-nitrobenzene (CAS 639824-65-0)
- 5-Chloro-4-(hexylamino)-2-phenylpyridazin-3(2H)-one (CAS 923027-35-4)
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- Cadmium acetylacetonate (CAS 14689-45-3)
- 2,3-Dimethylbenzothiophene (CAS 4923-91-5)
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