3,4-Bis(phenylmethoxy)-benzoic Acid CAS 1570-05-4
| CAS No. | 1570-05-4 |
| Molecular Formula | C21H18O4 |
| Molecular Weight | 334.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3,4-Bis(phenylmethoxy)-benzoic Acid (C21H18O4) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 334.37 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3,4-Bis(phenylmethoxy)-benzoic Acid (CAS 1570-05-4) is a high-purity analytical reference standard with the molecular formula C21H18O4 and a molecular weight of 334.37 g/mol.
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), 3,4-Bis(phenylmethoxy)-benzoic 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 | C21H18O4 |
| Molecular Weight | 334.37 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
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Recommended Standards
- tert-Butyl (S)-5-amino-4-(4-hydroxy-1-oxoisoindolin-2-yl)-5-oxopentanoate (CAS 1560678-51-4)
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- Aminopyrofen (CAS 1531626-08-0)
- 4-(4-Benzyloxyphenyl)-3-methoxybenzoic acid (CAS 167627-34-1)
- tert-Butyl (R)-2-Hydroxy-3,3-dimethylbutanoate (CAS 1349685-12-6)
- 2-Methoxy-5-(5-methylthiophen-3-yl)aniline (CAS 1496124-39-0)
- 2-Fluoro-biphenyl-3-carboxylic acid (CAS 177942-40-4)
- 3-methyl-5H-isoxazolo[4,5-d]pyridazin-4-one (CAS 923569-62-4)
- 4,4,5,5-Tetramethyl-2-styryl-1,3,2-dioxaborolane (CAS 78782-27-1)
- 2-Propyl-2-heptenal (CAS 34880-43-8)
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- 3-(4-Methoxyphenyl)thiophene (CAS 82437-75-0)
- 2-(4-Fluorophenyl)-1-(2-sulfanylidene-1,3-thiazolidin-3-yl)ethan-1-one (CAS 1267974-40-2)
- [Nva12]-Tirzepatide (CAS CATO-C4X-324042)
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