2-Carbon-<SUP>13</SUP>C-ethoxythiophene-2-<SUP>13</SUP>C-3 sulfonyl chloride CAS 1173018-95-5
| CAS No. | 1173018-95-5 |
| Molecular Formula | C5[13C]2H10ClO4S2 |
| Molecular Weight | 259.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-Carbon-<SUP>13</SUP>C-ethoxythiophene-2-<SUP>13</SUP>C-3 sulfonyl chloride 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.
2-Carbon-<SUP>13</SUP>C-ethoxythiophene-2-<SUP>13</SUP>C-3 sulfonyl chloride (CAS 1173018-95-5) is a high-purity analytical reference standard with the molecular formula C5[13C]2H10ClO4S2 and a molecular weight of 259.72 g/mol.
Structurally, 2-Carbon-<SUP>13</SUP>C-ethoxythiophene-2-<SUP>13</SUP>C-3 sulfonyl chloride (C5[13C]2H10ClO4S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.5, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 259.72 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C5[13C]2H10ClO4S2 |
| Molecular Weight | 259.72 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 | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.5 |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Carbon Standards
- 72802-79-0 Carbon-13C tetrabromide DTXSID00482569 (CAS 72802-79-0)
- Carbon supported palladium hydroxide (CAS 12135-22-7)
- Carbon- (CAS 30860-31-2)
- Carbon Disulfide (CAS 75-15-0)
- CARBON DIOXIDE (13C; 18O2) 2684-00-6 (CAS 2684-00-6)
- Carbon dioxide-<SUP>17</SUP>O<SUB>2</SUB> (CAS 1173018-47-7)
- Carbon dioxide-<SUP>13</SUP>C (CAS 1111-72-4)
- Carbon dioxide-<SUP>12</SUP>C (CAS 124-38-9)
Recommended Standards
- Ethyl N-[[(5-chloro-2-pyridinyl)amino]thioxomethyl]carbamate (CAS 78852-50-3)
- 1-(4-(Aminomethyl)phenyl)-2-(4-chlorophenyl)ethan-1-one (CAS 1017781-61-1)
- 6-Chloro-2-ethyl-1H-benzo[d]imidazole-5-sulfonamide (CAS 89725-14-4)
- 1-(3-(Aminomethyl)phenyl)-2-(4-chlorophenyl)ethanone (CAS 1017781-65-5)
- Usnic acid (CAS 125-46-2)
- 5-(Hydroxymethyl)quinolin-8-ol hydrochloride (CAS 57434-90-9)
- Di-μ-chlorobis[1-[(1R)-1-(dimethylamino)ethyl]-2-naphthyl-C,N]dipalladium(II) (CAS 80145-77-3)
- 2-(3-Fluorophenyl)morpholine (CAS 62008-55-3)
- 6,7-Dimethyl-3-(trifluoromethyl)quinoxaline-2-carboxylic acid (CAS 2197053-17-9)
- Methyl 2-(bromomethyl)-6-chloro-3-(3-methyl-2,6-dioxo-4-(trifluoromethyl)-2,3-dihydropyrimidin-1(6H)-yl)benzoate (CAS 355390-19-1)
- 2,4-Dichloroquinoline-7-carboxylic acid (CAS 2095165-04-9)
- 1-Methylpiperidin-4-yl furan-2-carboxylate fumarate (CAS 64429-25-0)
- tert-Butyl 4-(6-methoxypyrimidin-4-yl)-2-methylpiperazine-1-carboxylate (CAS 1353954-72-9)
- Staphylococcus Aureus Protein A (SpA)-Derived Peptide (H-2228.0005) (CAS 144979-26-0)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com