4,7-Dimethoxy-1,3-diphenylisobenzofuran CAS 89449-71-8
| CAS No. | 89449-71-8 |
| Molecular Formula | C22H18O3 |
| Molecular Weight | 330.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4,7-Dimethoxy-1,3-diphenylisobenzofuran (CAS 89449-71-8), a certified reference material (molecular formula C22H18O3, MW 330.38 g/mol) for analytical method development and quality control.
Structurally, 4,7-Dimethoxy-1,3-diphenylisobenzofuran (C22H18O3) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 330.38 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.
As a certified reference material (CRM), 4,7-Dimethoxy-1,3-diphenylisobenzofuran meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C22H18O3 |
| Molecular Weight | 330.38 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.) | 1982 |
Related Dimethoxy Standards
- 16,19-Dimethoxy-3,21-diazapentacyclo[11.8.0.0^{2,10}.0^{4,9}.0^{15,20}]henicosa-1(21),2(10),4(9),5,7,13,15(20),16,18-nonaene (CAS 860786-96-5)
- 2,6-Dimethoxy-N-(3-(1-methylcyclopentyl)isoxazol-5-yl)benzamide (CAS 82558-69-8)
- 2,6-Dimethoxy-N-(3-(2-methylpent-4-en-2-yl)isoxazol-5-yl)benzamide (CAS 82558-65-4)
- 3-(3,4-Dimethoxy-phenyl)-6-hydroxy-2-mercapto-3H-quinazolin-4-one (CAS 568544-01-4)
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- 2,3-Dimethoxy-5-(morpholinosulfonyl)benzoic acid (CAS 327091-18-9)
- 6,8-Dimethoxy-9-(thiophen-2-yl)-1H,3H,4H,9H-furo[3,4-b]quinolin-1-one (CAS 1272756-43-0)
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Recommended Standards
- 4-(Dimethylamino)-2-[(4-phenoxyphenyl)amino]pyridine-3-carbonitrile (CAS 338773-81-2)
- 4-[(2-Ethoxybenzoyl)amino]-1-methyl-5-propyl-1H-pyrazole-3-carboxamide (CAS 501120-38-3)
- 4-(2-(2-Methyl-4-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-1-yl)-2-oxoethyl)piperazine-1-carbaldehyde (CAS 866156-83-4)
- 5-(((4-Fluorophenyl)amino)methyl)-4-(2-methoxyphenyl)-4H-1,2,4-triazole-3-thiol (CAS 917750-19-7)
- [1,1':3',1''-Terphenyl]-4-carbaldehyde (CAS 226408-14-6)
- 6-(Furan-2-yl)-4-methoxy-5,6-dihydro-2H-pyran-2-one (CAS 78440-83-2)
- 1-Acetyl-2-benzylideneindolin-3-one (CAS 95542-12-4)
- 6-(4-Chloro-2-methylphenoxy)pyridin-3-amine (CAS 219865-94-8)
- 110765-08-7 Troglitazone Sulfate Sodium (CAS 110765-08-7)
- 3,3-Difluoro-2,3-dihydro-1H-inden-4-amine (CAS 1780632-66-7)
- 3-(5-Methoxypiperidin-3-yl)propanoic acid (CAS 1443982-14-6)
- 5-Amino-1,3-dimethyl-1H-pyrazole-4-carboxamide (CAS 101080-17-5)
- 1-(3-(4-(Dimethylamino)phenyl)propyl)-3-(thiophen-2-ylmethyl)urea (CAS 1207051-63-5)
- Peptide Impurity 81 TFA (CAS CATO-CPTD788581)
Why CATO?
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