3-Methyl-7-methoxy-8-(chloromethyl)flavone CAS 25782-05-2
| CAS No. | 25782-05-2 |
| Molecular Formula | C18H15ClO3 |
| Molecular Weight | 314.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 314.76 g/mol gives 3-Methyl-7-methoxy-8-(chloromethyl)flavone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Methyl-7-methoxy-8-(chloromethyl)flavone (CAS 25782-05-2), molecular formula C18H15ClO3 and molecular weight 314.76 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H15ClO3, 3-Methyl-7-methoxy-8-(chloromethyl)flavone contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 314.76 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 3-Methyl-7-methoxy-8-(chloromethyl)flavone 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 | C18H15ClO3 |
| Molecular Weight | 314.76 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Cl-containing |
Related Methyl Standards
- 17-Methoxy-17-oxoheptadecanoic acid (CAS 72849-42-4)
- 2-Methoxy Promazine (CAS 61-01-8)
- 4-Methoxy-N-[(E)-2-[6-methyl-3-(prop-2-en-1-ylsulfanyl)-1,2,4-triazin-5-yl]ethenyl]aniline (CAS 477865-89-7)
- 4-Methoxy-2-methyl-6-(4-(propylsulfonyl)piperazin-1-yl)pyrimidine (CAS 946232-49-1)
- 2-Methoxy-N-((5-(thiophen-2-yl)isoxazol-3-yl)methyl)benzamide (CAS 952996-64-4)
- 3-Methoxy-4-((5-methylthieno[2,3-d]pyrimidin-4-yl)amino)benzamide (CAS 917907-12-1)
- 3-Methoxy-N-methyl-4-(thieno[2,3-d]pyrimidin-4-ylamino)benzamide (CAS 917908-86-2)
- 4-Methoxy-N-(6-methoxybenzo[d]thiazol-2-yl)benzamide (CAS 91506-71-7)
Recommended Standards
- Ethyl 6-((tert-butoxycarbonyl)(methyl)amino)-5-chloronicotinate (CAS 1956331-00-2)
- 4,4'-(Chloro(phenyl)methylene)bis(fluorobenzene) (CAS 379-54-4)
- Ethyl 3-(4-chlorophenyl)-5-methylbenzofuran-2-carboxylate (CAS 1956310-33-0)
- 7-(Chloromethyl)-4,5,6-triethoxyisobenzofuran-1(3H)-one (CAS 924860-66-2)
- 5-Hydrazinyl-1H-benzo[d]imidazole dihydrochloride (CAS 73857-53-1)
- 2-(6-Chloropyrimidin-4-yl)isoindoline (CAS 945896-75-3)
- 1,2-Dichloro-5-methyl-3-nitrobenzene (CAS 13711-25-6)
- 3-(5-Bromofuran-2-yl)-2-oxopropanoic acid (CAS 953720-89-3)
- 5-(1-Butylpiperidin-2-yl)pyridine-2(1H)-thione (CAS 1352528-40-5)
- ethyl 5-methylpyridazine-4-carboxylate (CAS 92929-53-8)
- (S)-tert-Butyl 5-bromo-2-((tert-butoxycarbonyl)amino)pentanoate (CAS 91229-86-6)
- 【禁售不询】2-Butanone (CAS 78-93-3)
- (3S,4S)-3-(Boc-amino)-4-methylpiperidine (CAS 250275-21-9)
- Semaglutide impurity 205 (CAS CATO-C4X-2226205)
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