4-((R,E)-6-(((2R,3R,5R,6S)-3,5-Dihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)hept-2-enamido)benzoic acid CAS 1172120-40-9
| CAS No. | 1172120-40-9 |
| Molecular Formula | C20H27NO7 |
| Molecular Weight | 393.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-((R,E)-6-(((2R,3R,5R,6S)-3,5-Dihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)hept-2-enamido)benzoic acid (CAS 1172120-40-9), molecular formula C20H27NO7 and molecular weight 393.43 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-((R,E)-6-(((2R,3R,5R,6S)-3,5-Dihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)hept-2-enamido)benzoic acid (C20H27NO7) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C20H27NO7 |
| Molecular Weight | 393.43 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 1 |
Recommended Standards
- N-(3-fluoro-4-methylphenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide (CAS 1105234-95-4)
- 5-(6-(Benzyloxy)naphthalen-2-yl)-2,2-dimethyl-5-nitro-1,3-dioxane (CAS 1225347-11-4)
- N-(5-fluoro-2-methylphenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide (CAS 1105223-59-3)
- N-(4-Fluorophenyl)-2-[2-oxo-5-(piperidine-1-sulfonyl)-1,2-dihydropyridin-1-yl]acetamide (CAS 1251631-02-3)
- 1-(2',4'-Dichloro-[1,1'-biphenyl]-4-yl)-6-hydroxyhexan-1-one (CAS 1055896-19-9)
- 9-(3,4-Dimethylphenyl)-8,9-dihydro-8-oxo-7H-purine-6-carboxamide (CAS 898447-01-3)
- 1-Neopentylpiperidine-4-carbaldehyde (CAS 917898-69-2)
- 5,5'-((4-Chlorophenyl)methylene)bis(2-methylfuran) (CAS 86694-53-3)
- 2-((4-(Pyrrolidin-1-ylsulfonyl)phenyl)amino)acetic acid (CAS 88327-96-2)
- (E)-3-(4-(dimethylamino)phenyl)-1-phenylprop-2-en-1-one (CAS 22965-98-6)
- 2-(3-(3-Chlorophenyl)propanoyl)benzonitrile (CAS 898762-29-3)
- 2-(2-Methylpyridin-4-yl)ethan-1-ol (CAS 13959-37-0)
- Fmoc-l-2-indanylglycine (CAS 205526-39-2)
- Endo-Pro36-Tirzepatide (CAS CATO-CPTD788688)
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