Methyl 4-(2,7-difluoro-6-hydroxy-3-oxo-3H-xanthen-9-yl)-3-methylbenzoate CAS 879288-18-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 879288-18-3 |
| Molecular Formula | C22H14F2O5 |
| Molecular Weight | 396.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Methyl 4-(2,7-difluoro-6-hydroxy-3-oxo-3H-xanthen-9-yl)-3-methylbenzoate (CAS 879288-18-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C22H14F2O5. Molecular weight: 396.34 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C22H14F2O5 |
| Molecular Weight | 396.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
Related Methyl Standards
- 4-[Difluoro({[3-(trifluoromethyl)phenyl]sulfanyl})methyl]-6-methyl-2-phenylpyrimidine (CAS 306979-34-0)
- (R)-3,5-Difluoro-N-(4-(1-(1-methylethylsulfonamido)propan-2-yl)phenyl)benzamide 2924AH 376594-67-1 C19H22F2N2O3S (CAS 376594-67-1)
- 2,4-Difluoro-N-[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-pyridinyl]benzenesulfonamide (CAS 1092565-35-9)
- 1,4-Difluoro-9H-fluoren-9-one (CAS 17532-94-4)
- 3,4-Difluoro-4'-(4'-propyl-[1,1'-bi(cyclohexan)]-4-yl)-1,1'-biphenyl (CAS 119990-81-7)
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- 1,2-Difluoro-3,5-diiodo-4-methoxybenzene (CAS 1228093-55-7)
Recommended Standards
- Methyl 3-amino-6-(2H-1,3-benzodioxol-5-yl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxylate (CAS 625377-31-3)
- Letermovir Impurity 4 (CAS 1791412-07-1)
- 5-(3-(Tert-butyl)-1-(2,4-dichlorobenzyl)-1H-pyrazol-5-yl)-4-methyl-4H-1,2,4-triazole-3-thiol (CAS 306937-18-8)
- Methyl 1H-pyrrolo[3,2-h]quinoline-2-carboxylate (CAS 146724-32-5)
- 5-Amino-1-tosyl-1H-pyrazole-4-carbonitrile (CAS 106368-34-7)
- 2-Iodo-6-isopropylpyridine (CAS 1629345-96-5)
- 4-Amino-3-fluorobenzaldehyde (CAS 146019-47-8)
- 2-Amino-7-ethyl-1H-purin-6(7H)-one (CAS 19530-88-2)
- 2-(piperidin-1-yl)propane-1,3-diol hydrochloride (CAS 1989659-66-6)
- Semaglutide impurity 89 (CAS CATO-C4X-222689)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com