3-((3,4-Dichlorobenzyl)thio)thiophene-2-carboxylic acid CAS 251096-84-1
| CAS No. | 251096-84-1 |
| Molecular Formula | C12H8Cl2O2S2 |
| Molecular Weight | 319.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-((3,4-Dichlorobenzyl)thio)thiophene-2-carboxylic acid (CAS 251096-84-1), molecular formula C12H8Cl2O2S2 and molecular weight 319.23 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H8Cl2O2S2, 3-((3,4-Dichlorobenzyl)thio)thiophene-2-carboxylic acid 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 319.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 3-((3,4-Dichlorobenzyl)thio)thiophene-2-carboxylic acid 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 | C12H8Cl2O2S2 |
| Molecular Weight | 319.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Dichlorobenzyl Standards
- 3-((2,4-Dichlorobenzyl)thio)thiophene-2-carboxylic acid (CAS 251097-45-7)
- N-(3,4-dichlorobenzyl)-1H-indole-3-carboxamide (CAS 866132-46-9)
- N-(3,5-Dichlorobenzyl)-3-(trifluoromethyl)aniline (CAS 1040685-28-6)
- 1-(2,6-Dichlorobenzyl)-5-methylindoline-2,3-dione (CAS 478031-69-5)
- 2-((3,4-Dichlorobenzyl)amino)quinazolin-4(1H)-one (CAS 61779-12-2)
- 6-(2,4-Dichlorobenzyl)-5-oxothiomorpholine-3-carboxylic acid (CAS 1269527-73-2)
- 4-(2,4-Dichlorobenzyl)-2-methylthiomorpholine-3,5-dione 1-oxide (CAS 957002-76-5)
- 1-(2,4-Dichlorobenzyl)-1,3,4,5-tetrahydro-2H-benzo[b]azepin-2-one (CAS 303988-07-0)
Recommended Standards
- 3-(2,6-Difluoro-4-(trifluoromethyl)phenoxy)-4-methoxyaniline (CAS 2244084-03-3)
- 2-Butyl-3-(2,4-dichlorophenyl)benzofuran (CAS 204908-15-6)
- 3-(4-(Methoxycarbonyl)phenyl)-3-(2,2,2-trifluoroacetamido)propanoic acid (CAS 886360-56-1)
- 2-(2,6-Difluoro-4-(trifluoromethyl)phenoxy)-5-methoxyaniline (CAS 2244085-46-7)
- Phenyl 4,6-O-benzylidene-b-D-thiogalactopyranoside (CAS 138922-03-9)
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- 3-Fluoro-2-formyl-4-methoxyphenylboronic acid (CAS 1451392-03-2)
- 2,5-Dioxopyrrolidin-1-yl 3-formyl-4-hydroxybenzoate (CAS 122055-75-8)
- 6-Hydroxy-2-(p-tolyl)pyrimidin-4(3H)-one (CAS 77232-12-3)
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