Cyclopentylmethyl 4-methylbenzene-1-sulfonate CAS 21856-53-1
| CAS No. | 21856-53-1 |
| Molecular Formula | C13H18O3S |
| Molecular Weight | 254.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Cyclopentylmethyl 4-methylbenzene-1-sulfonate.
Cyclopentylmethyl 4-methylbenzene-1-sulfonate (CAS 21856-53-1) is a high-purity analytical reference standard with the molecular formula C13H18O3S and a molecular weight of 254.35 g/mol.
Based on its molecular formula C13H18O3S, Cyclopentylmethyl 4-methylbenzene-1-sulfonate contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 254.35 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Cyclopentylmethyl 4-methylbenzene-1-sulfonate 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.
Physical & Chemical Properties
| Molecular Formula | C13H18O3S |
| Molecular Weight | 254.35 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 |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Sulfur Atoms | 1 |
Related Cyclopentylmethyl Standards
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Recommended Standards
- Cyclohexyl p-toluenesulfonate (CAS 953-91-3)
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- Cyclohexa-2,5-dienecarboxylic acid (CAS 4794-04-1)
- Ethyl 2-amino-6-ethyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate (CAS 281656-91-5)
- Tetrahydro-2H-thiopyran-3-carboxylic acid (CAS 161404-76-8)
- 1-(2-Aminoethyl)-N,N-diethyl-1H-benzo[d][1,2,3]triazole-6-sulfonamide (CAS 1172828-53-3)
- Potassium 2,2'-((2-(bis(carboxymethyl)amino)ethyl)azanediyl)diacetate (CAS 2001-94-7)
- 5-((3,4-Dimethylphenoxy)methyl)-1,3,4-thiadiazol-2-amine (CAS 123216-99-9)
- 7-Bromo-2,4-dichloropyrido[3,2-d]pyrimidine (CAS 1215074-41-1)
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- (4-(Benzo[d]oxazol-2-yl)phenyl)methanol (CAS 421553-38-0)
- Biotin-PEG2-NHS ester (CAS 596820-83-6)
- 2,6-Bis(pyrrolidin-1-ylmethyl)-4-(quinazolin-4-ylamino)phenol (CAS 72063-47-9)
- Semaglutide impurity 96 (CAS CATO-C4X-222696)
Why CATO?
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