Diethyl 5,5'-thiobis(2-hydroxybenzoate) CAS 56923-38-7
| CAS No. | 56923-38-7 |
| Molecular Formula | C18H18O6S |
| Molecular Weight | 362.40 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 Diethyl 5,5'-thiobis(2-hydroxybenzoate).
CATO supplies Diethyl 5,5'-thiobis(2-hydroxybenzoate) (CAS 56923-38-7), a certified reference material (molecular formula C18H18O6S, MW 362.40 g/mol) for analytical method development and quality control.
Diethyl 5,5'-thiobis(2-hydroxybenzoate) (C18H18O6S) contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures Diethyl 5,5'-thiobis(2-hydroxybenzoate) 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 | C18H18O6S |
| Molecular Weight | 362.40 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2-(4-Fluorophenyl)-5-(trifluoromethyl)-1H-benzo[d]imidazole (CAS 1196131-36-8)
- Methyl 6-chloro-3-methyl-2-phenyl-4-quinolinecarboxylate (CAS 882747-33-3)
- 3-Chloro-N-(4-iodophenyl)-2,2-dimethylpropanamide (CAS 339100-81-1)
- Diethyl 2,2'-(1-(tert-butoxycarbonyl)piperidine-4,4-diyl)diacetate (CAS 1051383-60-8)
- Methylarsonic acid (CAS 124-58-3)
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- 5-Bromo-6-chloro-2-methyl-1H-pyrimidin-4-one (CAS 105806-11-9)
- N-(2-(1-Acetyl-5-(benzo[d][1,3]dioxol-5-yl)-4,5-dihydro-1H-pyrazol-3-yl)phenyl)methanesulfonamide (CAS 923226-60-2)
- Peptide Impurity 70 TFA Salt (CAS CATO-CPTD788570)
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