5-Chloro-2-(cyclopentylmethoxy)benzenesulfonyl chloride CAS 1342182-33-5
| CAS No. | 1342182-33-5 |
| Molecular Formula | C12H14Cl2O3S |
| Molecular Weight | 309.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Chloro-2-(cyclopentylmethoxy)benzenesulfonyl chloride is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5-Chloro-2-(cyclopentylmethoxy)benzenesulfonyl chloride (CAS 1342182-33-5), a certified reference material (molecular formula C12H14Cl2O3S, MW 309.21 g/mol) for analytical method development and quality control.
Structurally, 5-Chloro-2-(cyclopentylmethoxy)benzenesulfonyl chloride (C12H14Cl2O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 309.21 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C12H14Cl2O3S |
| Molecular Weight | 309.21 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 3-Chloro-4-(cyclohexyloxy)benzenesulfonyl chloride (CAS 1041531-84-3)
- 5-Chloro-2-(cyclohexyloxy)benzenesulfonyl chloride (CAS 1341440-13-8)
- 3-Chloro-5-((3-chloro-4-methylphenyl)sulfonyl)-1,2,4-thiadiazole (CAS 1000575-34-7)
- 3-Chloro-6-(4-(3-chlorophenyl)piperazin-1-yl)pyridazine (CAS 100240-52-6)
- 1,3-Bis(5-chloro-2-methylphenyl)urea (CAS 54965-12-7)
- 3-Chloro-5-((2-chlorobenzyl)sulfonyl)-1,2,4-thiadiazole (CAS 444791-20-2)
- 3-Chloro-5-((3-chlorobenzyl)sulfonyl)-1,2,4-thiadiazole (CAS 444791-18-8)
- 3-Chloro-5-((4-chlorobenzyl)sulfonyl)-1,2,4-thiadiazole (CAS 444791-19-9)
Recommended Standards
- tert-Butyl (3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)cyclopent-3-en-1-yl)carbamate (CAS 1643574-07-5)
- 1-{[3,5-Bis(trifluoromethyl)phenyl]methyl}-1H-pyrazol-3-amine (CAS 1240566-22-6)
- (2Z)-3-(4-Chlorophenyl)-1-[(4-chlorophenyl)sulfanyl]prop-2-en-1-one (CAS 331461-52-0)
- methyl 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-2-carboxylate (CAS 1227664-20-1)
- 2-Isopropylpyrazolo[1,5-a]pyrimidine (CAS 2138410-95-2)
- 2-(Benzo[d]thiazol-2-yl)-2-oxoacetic acid (CAS 28917-80-8)
- N1-benzyl-N1-ethyl-4-(methylsulfonyl)benzene-1,3-diamine (CAS 1220033-84-0)
- 3-Methylbenzo[c][1,2]oxaborol-1(3H)-ol (CAS 92203-40-2)
- 3-(3-Methyl-1H-pyrazol-1-yl)-6-(piperazin-1-yl)pyridazine (CAS 1706438-72-3)
- 1-(4-Aminopiperidin-1-yl)-2-methylpropan-1-one (CAS 880361-98-8)
- (S)-1-(2-Fluorophenyl)propan-1-amine hydrochloride (CAS 1310923-28-4)
- 1-(5-(4-Amino-2-methoxyphenyl)furan-2-yl)ethanone (CAS 886494-54-8)
- (1R)-6-Bromo-2,3-dihydro-1H-inden-1-amine (CAS 1055961-36-8)
- Liraglutide Impurity 19 TFA Salt (CAS CATO-C4X-199219)
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