2',3"-Dimethyl-[1,1':4',1":4",1"'-quaterphenyl]-4,4"'-dicarboxylic acid CAS 1799740-98-9
| CAS No. | 1799740-98-9 |
| Molecular Formula | C28H22O4 |
| Molecular Weight | 422.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2',3"-Dimethyl-[1,1':4',1":4",1"'-quaterphenyl]-4,4"'-dicarboxylic acid (CAS 1799740-98-9), molecular formula C28H22O4 and molecular weight 422.47 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2',3"-Dimethyl-[1,1':4',1":4",1"'-quaterphenyl]-4,4"'-dicarboxylic acid (C28H22O4) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 422.47 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).
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 2',3"-Dimethyl-[1,1':4',1":4",1"'-quaterphenyl]-4,4"'-dicarboxylic 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 | C28H22O4 |
| Molecular Weight | 422.47 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
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