3-(4-(Diethylamino)-2-hydroxyphenyl)-3-(2-ethoxy-4-methyl-5-(phenylamino)phenyl)-1-oxo-1,3-dihydroisobenzofuran-5-carboxylic acid CAS 7356-91-4
| CAS No. | 7356-91-4 |
| Molecular Formula | C34H34N2O6 |
| Molecular Weight | 566.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-(4-(Diethylamino)-2-hydroxyphenyl)-3-(2-ethoxy-4-methyl-5-(phenylamino)phenyl)-1-oxo-1,3-dihydroisobenzofuran-5-carboxylic acid (C34H34N2O6) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 19.0, corresponding to approximately 19 ring(s) or double-bond equivalent(s). With a molecular weight of 566.64 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
3-(4-(Diethylamino)-2-hydroxyphenyl)-3-(2-ethoxy-4-methyl-5-(phenylamino)phenyl)-1-oxo-1,3-dihydroisobenzofuran-5-carboxylic acid (CAS 7356-91-4) is a high-purity analytical reference standard with the molecular formula C34H34N2O6 and a molecular weight of 566.64 g/mol.
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.
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 | C34H34N2O6 |
| Molecular Weight | 566.64 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 2 |
Related Diethylamino Standards
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- 6'-(Diethylamino)-2'-[Methyl[3-(Trifluoromethyl)Phenyl]Amino]-Spiro[Isobenzofuran-1(3H),9'-[9H]Xanthen]-3-One (CAS 78923-50-9)
- PE 154 4-[[[7-(Diethylamino)-2,4-dioxo-2H-1-benzopyran-3(4H)-ylidene]methyl]amino]-benzeneacetic acid 2-(1,2,3,4-tetrahydro-9-acridinyl)hydrazide 1192750-33-6 (CAS 1192750-33-6)
- 6'-(Diethylamino)-2'-[[3-(Trifluoromethyl)Phenyl]Amino]Spiro[Isobenzofuran-1(3H),9'-[9H]Xanthene]-3-One (CAS 68134-61-2)
Recommended Standards
- (E)-1-(2,4-Dihydroxy-3-((1S,5S,E)-5-hydroxy-1-(4-hydroxyphenyl)-7-phenylhept-2-en-1-yl)-6-methoxyphenyl)-3-(4-hydroxyphenyl)prop-2-en-1-one (CAS 202596-22-3)
- N-(Azido-PEG3)-N-Boc-PEG4-acid (CAS 2112731-95-8)
- (4S,5R)-3-((S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-5-(tert-butoxy)-5-oxopentanoyl)-2,2,5-trimethyloxazolidine-4-carboxylic acid (CAS 957780-56-2)
- Thiocolchicoside-d3 (CAS CATO-C4X-27706)
- Dihydrodydrogesterone-d7 (CAS 86495-64-9 (non-labelled))
- 3-((2-(Trimethylsilyl)ethoxy)methyl)pyrimidine-2,4(1H,3H)-dione (CAS 464216-37-3)
- 2-(3,5-Dimethylpiperidin-1-yl)-2-phenylacetic acid hydrochloride (CAS 1956306-20-9)
- 2-Chloro-n-methyl-4-nitrobenzamide (CAS 90110-20-6)
- N-(6-Bromopyridazin-3-yl)pivalamide (CAS 1443739-41-0)
- 1-(Bromomethyl)-1H-pyrazole (CAS 1256561-87-1)
- 7-Bromo-2-chloro-[1,2,4]triazolo[1,5-a]pyridine (CAS 1784300-41-9)
- 1-(2,4-Dichlorophenyl)ethane-1-thiol (CAS 1039319-82-8)
- Propane-1,2-diyl dipentanoate (CAS 29949-05-1)
- Semaglutide Impurity 4 (CAS CATO-C4X-22264)
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