3,3'-((Methylenebis(oxy))bis(4,1-phenylene))bis(pyrrolidine-2,5-dione) CAS 87367-86-0
| CAS No. | 87367-86-0 |
| Molecular Formula | C21H18N2O6 |
| Molecular Weight | 394.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3,3'-((Methylenebis(oxy))bis(4,1-phenylene))bis(pyrrolidine-2,5-dione) (CAS 87367-86-0), molecular formula C21H18N2O6 and molecular weight 394.38 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3,3'-((Methylenebis(oxy))bis(4,1-phenylene))bis(pyrrolidine-2,5-dione) (C21H18N2O6) 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 | C21H18N2O6 |
| Molecular Weight | 394.38 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 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Nitrogen Atoms | 2 |
Related Methylenebis Standards
- 5,5-Methylenebis(4-benzyl-4H-1,2,4-triazole-3-thiol) (CAS 62575-53-5)
- 2,2＇-Methylenebis(6-cyclohexyl-p-cresol) (CAS 4066-02-8)
- 1,1'-(Methylenebis(4,1-phenylene))bis(3-butylurea) (CAS 77703-56-1)
- 4,4′-[Methylenebis(4,1-phenyleneimino)]bis[4-oxobutanoic acid] (CAS 155267-38-2)
- 2,2′-[Methylenebis(4,1-phenylenenitrilomethylidyne)]bis[phenol] (CAS 4434-23-5)
- 6,6'-Methylenebis(4-chloro-2-isopropyl-5-methylphenol) (CAS 15686-33-6)
- 4,4＇-Methylenebis(3-chloro-2,6-diethylaniline) (CAS 106246-33-7)
- 4,4'-Methylenebis(3-bromo-N,N-dimethylaniline) (CAS 63594-70-7)
Recommended Standards
- (2Z,2'Z)-4,4'-((methylenebis(4,1-phenylene))bis(azanediyl))bis(4-oxobut-2-enoic acid) (CAS 6330-01-4)
- 6,8-Dihydroxypyrene-1,3-disulfonic acid (CAS 85353-28-2)
- N-Acetyl Serotonin beta-D-Glucuronide (CAS 18430-06-3)
- Diethyl 5-hydroxy-1-(2-(2-nitrophenyl)acetyl)pyrrolidine-2,2-dicarboxylate (CAS 66709-35-1)
- 2,2-Difluoro-2-(1,1,2,2-tetrafluoro-2-(perfluorobutoxy)ethoxy)acetyl fluoride (CAS 172897-75-5)
- Rebaudioside C (CAS 63550-99-2)
- (3-(Cyanomethoxy)phenyl)boronic acid (CAS 947533-25-7)
- 4-Methyl-2-(pyrrolidin-1-yl)quinoline (CAS 53541-66-5)
- [1-(2-phenylethyl)-1h-pyrazol-4-yl]methanol (CAS 1341611-65-1)
- Methyl 2-(2-aminoethyl)-6-chloroisonicotinate (CAS 1393566-39-6)
- 2,2-Dithiobis[2-methyl-1-propanol] (CAS 132182-01-5)
- 4-[(6-Phenylpyrimidin-4-yl)amino]benzoic acid (CAS 927983-37-7)
- (R)-2-Aminobut-3-yn-1-ol hydrochloride (CAS 1956436-39-7)
- Fibrinopeptide A, human TFA (CAS 61533-47-9)
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