2-[2-(2-Hydroxyethoxy)ethoxy]ethyl 4-Methylbenzenesulfonate CAS 77544-68-4
| CAS No. | 77544-68-4 |
| Molecular Formula | C13H20O6S |
| Molecular Weight | 304.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-[2-(2-Hydroxyethoxy)ethoxy]ethyl 4-Methylbenzenesulfonate (CAS 77544-68-4) is a high-purity analytical reference standard with the molecular formula C13H20O6S and a molecular weight of 304.36 g/mol.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 2-[2-(2-Hydroxyethoxy)ethoxy]ethyl 4-Methylbenzenesulfonate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 304.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C13H20O6S |
| Molecular Weight | 304.36 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Sulfur Atoms | 1 |
Related Hydroxyethoxy Standards
- 2-(2-(2-Hydroxyethoxy)ethoxy)ethyl benzoate (CAS 23022-51-7)
- 1-[(2-hydroxyethoxy)methyl]-5-methyl-6-(phenylthio)2,4(1H, 3H)-pyrimidinedione (CAS 123027-56-5)
- N2-(2-(2-Hydroxyethoxy)ethyl)-N4-(p-tolyl)-L-asparagine (CAS 1048005-82-8)
- 1-((2-Hydroxyethoxy)methyl)-6-(phenylthio)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 125057-06-9)
- N2-(2-(2-Hydroxyethoxy)ethyl)-N4-(pyridin-3-yl)-L-asparagine (CAS 1047666-69-2)
- 1-((2-Hydroxyethoxy)methyl)-5-iodopyrimidine-2,4(1H,3H)-dione (CAS 78692-74-7)
- Methyl 2-[4-(2-hydroxyethoxy)phenyl]-1H-benzimidazole-5-carboxylate (CAS 1705074-81-2)
- N-(9-((2-Hydroxyethoxy)methyl)-9H-purin-6-yl)benzamide (CAS 72710-11-3)
Recommended Standards
- 2-(Tosyloxy)methyl-2,3-dihydrobenzofuran (CAS 94709-25-8)
- 2-[4-Methyl-2-(methylsulfanyl)-6-oxo-1,6-dihydropyrimidin-5-yl]ethyl benzoate (CAS 338402-00-9)
- 2-(2-(4-Methoxy-3-methylphenyl)acetamido)thiophene-3-carboxamide (CAS 955807-44-0)
- 2-Phenyl-N-(4-sulfamoylbenzyl)acetamide (CAS 41352-39-0)
- 1-Ethyl-5-phenyl-1h-pyrazole-4-carboxylic acid (CAS 1250673-36-9)
- (2S,3S)-2-Amino-N,3-dimethylpentanamide hydrochloride (CAS 1807933-89-6)
- 3-(Naphthalen-2-yl)propanal (CAS 136415-67-3)
- N-Me-Asp-OH (CAS 4226-18-0)
- 1-Methyl-2-thioxo-1,2-dihydropyridine-3-carbohydrazide (CAS 1092346-77-4)
- 5-(Propan-2-yloxy)pyridine-3-carboxylic acid (CAS 863507-81-7)
- (3-Bromo-5-iodophenyl)methanamine (CAS 1261571-12-3)
- N-(2-(2-(Thiophen-2-yl)-1H-indol-3-yl)ethyl)acetamide (CAS 823821-79-0)
- 2-CHLORO-4-FLUORO-1-METHOXY-BENZENE 2-Chloro-4-fluoroanisole 2267-25-6 AS02722 BENZENE, 2-CHLORO-4-FLUORO-1-METHOXY- (CAS 2267-25-6)
- Tirzepatide Impurity 49 (CAS CATO-C4X-324049)
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