2-[(5-chlorothiophen-2-yl)methanesulfonyl]acetic acid CAS 851175-94-5
| CAS No. | 851175-94-5 |
| Molecular Formula | C7H7ClO4S2 |
| Molecular Weight | 254.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2-[(5-chlorothiophen-2-yl)methanesulfonyl]acetic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 254.71 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
2-[(5-chlorothiophen-2-yl)methanesulfonyl]acetic acid (CAS 851175-94-5) is a high-purity analytical reference standard with the molecular formula C7H7ClO4S2 and a molecular weight of 254.71 g/mol.
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), 2-[(5-chlorothiophen-2-yl)methanesulfonyl]acetic 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 | C7H7ClO4S2 |
| Molecular Weight | 254.71 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; 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.) | 1987 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related chlorothiophen Standards
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- 2-(5-Chlorothiophen-2-yl)-3h,4h,5h,6h,7h-cyclopenta[d]pyrimidin-4-one (CAS 1251200-68-6)
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Recommended Standards
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- 2-Benzyl-3-chloroquinoxaline (CAS 49568-78-7)
- 1-Benzoylcyclopropane-1-carboxylic acid (CAS 79172-43-3)
- (S)-1-(4-fluoro-3-methoxyphenyl)butan-1-amine (CAS 1213439-20-3)
- 2-(2-((1-(2-Ethoxyphenyl)-1H-tetrazol-5-yl)thio)acetamido)benzoic acid (CAS 874467-86-4)
- 1,3-Dimethyl-6-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 1956318-09-4)
- 5-Chloro-3-phenyl-1,2,4-oxadiazole 827-44-1 C8H5ClN2O Y6416 (CAS 827-44-1)
- 1217620-38-6 ABT 263-d8 (CAS 1217620-38-6)
- 1-(2,4-Dimethylphenyl)-5-oxo-4,5-dihydro-1h-pyrazole-4-carboxylic acid (CAS 1204297-52-8)
- 4-(Benzyloxy)-3-bromobenzaldehyde (CAS 69455-12-5)
- 6-Phenylpiperidin-2-one (CAS 41419-25-4)
- Tirzepatide Impurity 12 (CAS CATO-C4X-324012)
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