57368-07-7 2,2'-(Ethane-1,2-diyldiimino)bis((2-hydroxy-5-sulfophenyl)acetic acid) EC 611-514-5 CAS 57368-07-7
| CAS No. | 57368-07-7 |
| Molecular Formula | C18H20N2O12S2 |
| Molecular Weight | 520.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
57368-07-7 2,2'-(Ethane-1,2-diyldiimino)bis((2-hydroxy-5-sulfophenyl)acetic acid) EC 611-514-5 (C18H20N2O12S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
57368-07-7 2,2'-(Ethane-1,2-diyldiimino)bis((2-hydroxy-5-sulfophenyl)acetic acid) EC 611-514-5 (CAS 57368-07-7), molecular formula C18H20N2O12S2 and molecular weight 520.49 g/mol, is a CATO reference standard with documented purity and traceability.
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 57368-07-7 2,2'-(Ethane-1,2-diyldiimino)bis((2-hydroxy-5-sulfophenyl)acetic acid) EC 611-514-5 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 | C18H20N2O12S2 |
| Molecular Weight | 520.49 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
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Recommended Standards
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- Ethyl (S,2Z,6E)-5-((tert-butyldimethylsilyl)oxy)-2,6-dimethyl-7-(2-methylthiazol-4-yl)hepta-2,6-dienoate (CAS 218614-04-1)
- N-(Cyclohexylmethyl)aniline hydrochloride (CAS 126541-71-7)
- 2,2'-Bis(4-nitrophenoxy)-1,1'-biphenyl (CAS 65811-03-2)
- (E)-2-heptylcyclopentan-1-one oxime (CAS 165385-93-3)
- 5-Chloro-1-[(3,4-dichlorophenyl)methyl]-N-[2-(dimethylamino)ethyl]-6-oxo-1,6-dihydropyridine-3-carboxamide (CAS 338981-06-9)
- N,N-Dimethylethanesulfonamide (CAS 6338-68-7)
- 1-Tert-butyl-5-ethyl-1h-pyrazole-4-carboxylic acid (CAS 1119459-44-7)
- N-(5-Chloro-2-((4-methyl-4H-1,2,4-triazol-3-yl)thio)phenyl)-2-(2-oxoquinoxalin-1(2H)-yl)acetamide (CAS 871089-29-1)
- 5-Phenoxypentane-1-sulfonyl chloride (CAS 1341644-30-1)
- Tau Peptide (298-312) trifluoroacetate salt (CAS 330456-47-8)
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