rac-Pinocembrin 7-Benzyl Ester CAS 120980-33-8
| CAS No. | 120980-33-8 |
| Molecular Formula | C22H18O4 |
| Molecular Weight | 346.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of rac-Pinocembrin 7-Benzyl Ester 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.
rac-Pinocembrin 7-Benzyl Ester (CAS 120980-33-8), molecular formula C22H18O4 and molecular weight 346.38 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, rac-Pinocembrin 7-Benzyl Ester is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 346.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 rac-Pinocembrin 7-Benzyl Ester 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 | C22H18O4 |
| Molecular Weight | 346.38 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Related rac Standards
- Pinocembrin, diacetate (CAS 111441-88-4)
- Pinocembrin, 7-acetate (CAS 109592-60-1)
- (R)-Pinocembrin (CAS 206660-42-6)
- Rac-Pinocembrin (CAS 68745-38-0)
- Pinocembrin (CAS 480-39-7)
- Pinocembrin Chalcone (CAS 4197-97-1)
- Pinocembrin-7-O-β-D-glucopyranoside (CAS 75829-43-5)
- Pinocembrin 7-O-[3-O-galloyl-4,6-hexahydroxydiphenoyl]-β-D-glucoside (CAS 205370-59-8)
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- Ethyl 4-nitrosopiperazine-1-carboxylate (CAS 13256-15-0)
- N-(hept-5-yn-1-yl)-2,2-dimethylthietan-3-amine (CAS 1876672-78-4)
- 1-Methylhexahydropyrimidine (CAS 31952-00-8)
- 3-(1,5-Dimethyl-1h-pyrazol-4-yl)-2-oxopropanoic acid (CAS 1505808-07-0)
- N-((1S,2S)-2-aminocyclohexyl)-1,1,1-trifluoromethanesulfonamide (CAS 313342-12-0)
- Pancreatic Polypeptide (31-36), amide, human (CAS 74012-13-8)
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