5,5'-(9H-Fluorene-2,7-diyl)diisophthalic acid CAS 1424351-59-6
| CAS No. | 1424351-59-6 |
| Molecular Formula | C29H18O8 |
| Molecular Weight | 494.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5,5'-(9H-Fluorene-2,7-diyl)diisophthalic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5,5'-(9H-Fluorene-2,7-diyl)diisophthalic acid (CAS 1424351-59-6), molecular formula C29H18O8 and molecular weight 494.45 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, 5,5'-(9H-Fluorene-2,7-diyl)diisophthalic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 494.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 5,5'-(9H-Fluorene-2,7-diyl)diisophthalic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C29H18O8 |
| Molecular Weight | 494.45 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Related H Standards
- 2,2'-((((9H-fluorene-9,9-diyl)bis(2-methyl-4,1-phenylene))bis(oxy))bis(methylene))bis(oxirane) (CAS 114205-89-9)
- 2,2'-(((9H-Fluorene-9,9-diyl)bis(2-methyl-4,1-phenylene))bis(oxy))diethanol (CAS 156326-34-0)
- 2,2'-((9H-Fluorene-2,7-disulfonyl)bis(azanediyl))bis(3-methylbutanoic acid) (CAS 307941-68-0)
- 4,4'-(((9H-Fluorene-9,9-diyl)bis(4,1-phenylene))bis(oxy))dianiline (CAS 47823-88-1)
- 6,6'-(9H-Fluorene-9,9-diyl)bis(naphthalen-2-ol) (CAS 934557-66-1)
- 2,2'-(((9H-fluorene-9,9-diyl)bis(naphthalene-6,2-diyl))bis(oxy))bis(ethan-1-ol) (CAS 334008-97-8)
- 2,2'-((9H-Fluorene-2,7-disulfonyl)bis(azanediyl))diacetic acid (CAS 303059-37-2)
- 4,4'-(((9H-fluorene-9,9-diyl)bis(4,1-phenylene))bis(azanediyl))bis(4-oxobutanoic acid) (CAS 457922-91-7)
Recommended Standards
- 3'-Hydroxy-6'-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one (CAS 129787-63-9)
- 2',5'-Diethoxy-[1,1':4',1''-terphenyl]-3,3'',5,5''-tetracarboxylic acid (CAS 1459128-79-0)
- Fluorescein mono-β-D-galactopyranoside (CAS 102286-67-9)
- Phenolphthalein β-D-Glucuronide (CAS 15265-26-6)
- 2-Allylbenzofuran-3(2H)-one (CAS 104034-51-7)
- 5-Methyl-4-(4-nitrophenyl)pyrazolidin-3-one (CAS 13051-13-3)
- N-(tert-butyl)-7-methyl-5-oxo-5H-chromeno[2,3-b]pyridine-3-carboxamide (CAS 338751-41-0)
- Milrinone Impurity 17 (CAS CATO-C4X-109117)
- 3-Methoxy-2-(trifluoromethyl)benzaldehyde (CAS 1214384-89-0)
- N’-cyclopropyl(dodecylsulfanyl)methanimidamide hydrobromide (CAS 1235441-79-8)
- 2-(2,4,6-Trichloropyrimidin-5-yl)acetaldehyde (CAS 1245898-27-4)
- 2-(Hydroxymethyl)-6-methylpyridin-3-ol 3-Hydroxy-2-hydroxymethyl-6-methylpyridine 3-Hydroxy-6-methyl-2-pyridinemethanol 42097-42-7 (CAS 42097-42-7)
- n-Benzyl-2-hydroxynicotinamide (CAS 930681-24-6)
- Tau Peptide (512-525) amide trifluoroacetate salt (CAS 2022956-61-0)
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