4-Methylphenyl 2-3-4-6-tetra-O-acetyl-β-D-thiogalactopyranoside CAS 28244-99-7
| CAS No. | 28244-99-7 |
| Molecular Formula | C21H26O9S |
| Molecular Weight | 454.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 454.49 g/mol gives 4-Methylphenyl 2-3-4-6-tetra-O-acetyl-β-D-thiogalactopyranoside distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Methylphenyl 2-3-4-6-tetra-O-acetyl-β-D-thiogalactopyranoside (CAS 28244-99-7), a certified reference material (molecular formula C21H26O9S, MW 454.49 g/mol) for analytical method development and quality control.
Structurally, 4-Methylphenyl 2-3-4-6-tetra-O-acetyl-β-D-thiogalactopyranoside (C21H26O9S) contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 454.49 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C21H26O9S |
| Molecular Weight | 454.49 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Sulfur Atoms | 1 |
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- {1-methyl-5-[(4-methylphenyl)sulfanyl]-3-phenyl-1H-pyrazol-4-yl}methyl 4-chlorobenzoate (CAS 318247-41-5)
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Recommended Standards
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- 2-(Acetoxymethyl)-6-(benzylthio)tetrahydro-2H-pyran-3,4,5-triyl triacetate (CAS 6612-63-1)
- (4-Hydroxyphenyl)(3-nitrophenyl)methanone (CAS 72090-63-2)
- 6-(2,5-Dimethoxyphenyl)pyridazine-3-thiol (CAS 1226273-86-4)
- 3-Chloro-2-(4-(3-(thiophen-2-yl)-1H-pyrazol-5-yl)piperidin-1-yl)-5-(trifluoromethyl)pyridine (CAS 477762-67-7)
- (4-(4-Chlorophenyl)pyrimidin-2-yl)methanamine hydrochloride (CAS 1196145-75-1)
- N-Benzyl-2-fluoroacrylamide (CAS 1972661-98-5)
- p-Hexadecyloxyaniline (CAS 7502-06-9)
- Cipepofol Impurity 3 (CAS 1637741-59-3)
- Phenyl(4-(prop-2-yn-1-yl)piperazin-1-yl)methanone (CAS 72955-72-7)
- 2-((4,6-Dimethylpyrimidin-2-yl)amino)benzoic acid (CAS 17174-03-7)
- MOTS-c Peptide (CAS 1627580-64-6)
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