Holostyligone CAS 887501-28-2
| CAS No. | 887501-28-2 |
| Molecular Formula | C21H24O5 |
| Molecular Weight | 356.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Holostyligone is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Holostyligone (CAS 887501-28-2), molecular formula C21H24O5 and molecular weight 356.41 g/mol, is a CATO reference standard with documented purity and traceability.
Holostyligone (C21H24O5) contains a flavonoid core, 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 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).
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 Holostyligone 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 | C21H24O5 |
| Molecular Weight | 356.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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.) | 1987 |
Recommended Standards
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- Benzyl-PEG5-acid (CAS 2514948-41-3)
- Licorisoflavan I (CAS 2444736-45-0)
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- 4-(4-Bromo-phenyl)-1-methyl-piperidine (CAS 1187928-85-3)
- 4-(4-Amino-2-bromophenoxy)benzonitrile (CAS 66658-88-6)
- 3-(3-Chloro-4-hydroxyphenyl)propanoic acid (CAS 79669-18-4)
- 5-Aminomethyl-2-trifluoromethyl-pyrimidin-4-ylamine (CAS 2822-73-3)
- 16,19-Dimethoxy-3,21-diazapentacyclo[11.8.0.0^{2,10}.0^{4,9}.0^{15,20}]henicosa-1(21),2(10),4(9),5,7,13,15(20),16,18-nonaene (CAS 860786-96-5)
- [β-Asp]9-Semaglutide (CAS CATO-CPTD788605)
Why CATO?
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