[1,1':4',1'':4'',1'''-Quaterphenyl]-3,3''',5,5'''-tetracarboxylic acid CAS 921619-91-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 921619-91-2 |
| Molecular Formula | C28H18O8 |
| Molecular Weight | 482.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
[1,1':4',1'':4'',1'''-Quaterphenyl]-3,3''',5,5'''-tetracarboxylic acid (CAS 921619-91-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C28H18O8. Molecular weight: 482.44 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C28H18O8 |
| Molecular Weight | 482.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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 |
| Degree of Unsaturation (DBE) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related Quaterphenyl Standards
- [1,1':4',1'':4'',1'''-Quaterphenyl]-2,2''',4,4'''-tetracarboxylic acid (CAS 1860824-55-0)
- [1,1':2',1'':2'',1'''-Quaterphenyl]-2-yl(4-(Dimethylamino)phenyl)(methyl)phosphineoxide (CAS 105521-34-4)
- [1,1':4',1'':4'',1'''-Quaterphenyl]disulfonic acid (CAS 74218-63-6)
- 2,2′-[1,1′:3′,1′′:3′′,1′′′-Quaterphenyl]-2′,2′′-diylbis[4,5-dihydrooxazole] (CAS 1021602-62-9)
- [1,1':4',1'':4'',1'''-quaterphenyl]-3,4''',5-tricarboxylic acid (CAS 2005517-60-0)
- 2-([1,1':4',1'':4'',1'''-Quaterphenyl]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1802233-15-3)
- [1,1':3',1'':3'',1'''-Quaterphenyl]-3,3''',5,5'''-tetracarbaldehyde (CAS 2459652-60-7)
- [1,1':3',1'':3'',1'''-Quaterphenyl]-4,4''',5',5''-tetracarbaldehyde (CAS 2757248-24-9)
Recommended Standards
- 2,2',2''-(2-(5-Iodothiophen-2-yl)ethene-1,1,2-triyl)trithiophene (CAS 656231-99-1)
- 3-((6-Amino-1-(4-methoxyphenyl)-3-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)carbamoyl)-1,2-phenylene diacetate (CAS 176379-43-4)
- N-(3-Bromophenyl)-2-((5-((4-methoxybenzyl)thio)-1,3,4-thiadiazol-2-yl)thio)acetamide (CAS 477313-74-9)
- N-(3,4-dichlorobenzyl)-4-(2-oxopyrrolidin-1-yl)benzamide (CAS 478039-61-1)
- 4-Iodopyridine-2,6-dicarboxylic acid (CAS 506423-80-9)
- (E)-3-(2-chlorophenyl)-1-(p-tolyl)prop-2-en-1-one (CAS 38018-63-2)
- 3-Chlorophenetole (CAS 2655-83-6)
- (5-Chloro-2-methylphenyl)(methyl)sulfane (CAS 82961-51-1)
- 4’-Bromobiphenyl-2,4-diol (CAS 1418117-89-1)
- Semaglutide Impurity 16 (CAS CATO-C4X-222616)
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