Castalagin CAS 24312-00-3
| CAS No. | 24312-00-3 |
| Molecular Formula | C41H26O26 |
| Molecular Weight | 934.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C41H26O26, Castalagin contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 934.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Castalagin (CAS 24312-00-3), molecular formula C41H26O26 and molecular weight 934.63 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 Castalagin 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 | C41H26O26 |
| Molecular Weight | 934.63 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) | 29.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Recommended Standards
- (2S,4R)-1-((S)-2-(3-(2-((5-((4-((3-chloro-4-fluorophenyl)amino)-7-methoxyquinazolin-6-yl)oxy)pentyl)oxy)ethoxy)propanamido)-3,3-dimethylbutanoyl)-4-hydroxy-N-(4-(4-methylthiazol-5-yl)benzyl)pyrrolidine-2-carboxamide (CAS 2230821-27-7)
- Vescalagin (CAS 36001-47-5)
- 5,10,15,20-Tetrakis(5-bromopyridin-2-yl)porphyrin (CAS 2414050-99-8)
- (9H-fluoren-9-yl)methyl ((R)-1-(((S)-6-((tert-butoxycarbonyl)amino)-1-oxo-1-(4-(pyridin-4-yl)piperazin-1-yl)hexan-2-yl)amino)-3-(3,5-dibromo-4-hydroxyphenyl)-1-oxopropan-2-yl)carbamate (CAS 204693-24-3)
- 6-(4-Methoxyphenyl)pyridazin-3-amine (CAS 4776-87-8)
- 6-(Chloromethyl)-N,N-dimethyl-1,3,5-triazine-2,4-diamine (CAS 21320-37-6)
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- Indirubin-3-monoxime (CAS 160807-49-8)
- (Glu9)-Exenatide (2-39) trifluoroacetate salt (CAS 196109-34-9)
Why CATO?
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