4,4'-([1,1'-Biphenyl]-4,4'-diyl)bis(cyclohexane-1,2-dicarboxylic acid) CAS 2028-14-0
| CAS No. | 2028-14-0 |
| Molecular Formula | C28H30O8 |
| Molecular Weight | 494.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4,4'-([1,1'-Biphenyl]-4,4'-diyl)bis(cyclohexane-1,2-dicarboxylic acid).
4,4'-([1,1'-Biphenyl]-4,4'-diyl)bis(cyclohexane-1,2-dicarboxylic acid) (CAS 2028-14-0), molecular formula C28H30O8 and molecular weight 494.53 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4,4'-([1,1'-Biphenyl]-4,4'-diyl)bis(cyclohexane-1,2-dicarboxylic acid) (C28H30O8) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 494.53 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.
As a certified reference material (CRM), 4,4'-([1,1'-Biphenyl]-4,4'-diyl)bis(cyclohexane-1,2-dicarboxylic acid) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C28H30O8 |
| Molecular Weight | 494.53 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Biphenyl Standards
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Recommended Standards
- AZD-9567, >98% (HPLC) (CAS 1893415-00-3)
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- (S)-(1R,2R,3R,3aS,3a1S,4R,6aR,7aS,11S,11aS,11bR)-1,2,11-Trihydroxy-3,8,11a-trimethyl-5,10-dioxo-2,3,3a,4,5,6a,7,7a,10,11,11a,11b-dodecahydro-1H-1,3a1-(epoxymethano)dibenzo[de,g]chromen-4-yl 2-hydroxy-2-methylbutanoate (CAS 1259-86-5)
- endo-BCN-PEG3-NHS ester (CAS 2101206-94-2)
- N,N,2-Trimethyl-1-phenyl-1H-imidazol-5-amine (CAS 799813-82-4)
- 3-(4-Chloro-3-ethylphenoxy)azetidine (CAS 1219976-63-2)
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- 2-(Allyloxy)-5-amino-N-cyclopropylbenzamide (CAS 30509-95-6)
- 2-Amino-N-(2-methoxyphenyl)-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxamide (CAS 328540-70-1)
- Methyl 4-amino-5-bromopyrrolo[2,1-f][1,2,4]triazine-7-carboxylate (CAS 2092425-70-0)
- (betaR)-beta-Cyclopentyl-4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazole-1-propanenitrile 2,2,2-trifluoroacetate (CAS 941678-50-8)
- N-[(S)-1-Carbethoxy-1-butyl]-L-alanine (CAS 82834-12-6)
- 1-(1,3-Benzoxazol-2-yl)-3-methyl-1H-pyrazol-5-amine (CAS 926190-29-6)
- Galanin-Like Peptide (porcine) trifluoroacetate salt (CAS 245114-96-9)
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