Centaureidin Impurity 1 CAS 1176-88-1
| CAS No. | 1176-88-1 |
| Molecular Formula | C21H22O9 |
| Molecular Weight | 418.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Centaureidin Impurity 1 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.
Centaureidin Impurity 1 (CAS 1176-88-1), molecular formula C21H22O9 and molecular weight 418.39 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Centaureidin Impurity 1 (C21H22O9) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 418.39 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.
CATO manufactures Centaureidin Impurity 1 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 | C21H22O9 |
| Molecular Weight | 418.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Centaureidin Standards
Recommended Standards
- 6-Carboxyhexylphosphocholine p-nitrophenyl ester (CAS 73785-43-0)
- 4-(3-(((Tert-butyldimethylsilyl)oxy)methyl)pyrrolidin-1-yl)-3-iodopyridine (CAS 1203498-95-6)
- 4-(2,5-Difluorophenyl)-4-((4-(trifluoromethyl)phenyl)sulfonyl)cyclohexanone (CAS 471903-60-3)
- 2-(3-(((Tert-butyldimethylsilyl)oxy)methyl)pyrrolidin-1-yl)-3-iodopyridine (CAS 1203499-01-7)
- Triethylphosphine Sulphide (CAS 597-51-3)
- Ethyl 1-(3,4-dimethylphenyl)-4-formyl-1H-pyrazole-3-carboxylate (CAS 1159691-86-7)
- 1-(2-Amino-6-chloropyridin-3-yl)ethan-1-one (CAS 1211520-37-4)
- Moxifloxacin impurity 185 (CAS CATO-C4X-1074185)
- 3-(1-Oxophthalazin-2(1H)-yl)propanehydrazide (CAS 618442-00-5)
- N-(7-Chloro-3,4-dimethylbenzo[d]thiazol-2(3H)-ylidene)cyclopropanecarboxamide (CAS 868370-10-9)
- 1-(Bicyclo[4.2.0]octa-1,3,5-trien-7-ylmethyl)-1h-pyrazol-3-amine (CAS 1521182-38-6)
- 5-Methoxy-4,7-phenanthroline (CAS 951-06-4)
- 3-(4-Chlorophenyl)pyrazole (CAS 59843-58-2)
- Acetyl Tetrapeptide- 15 (CAS 928007-64-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com