Bis(4-methoxyphenyl)phosphinic acid CAS 20434-05-3
Purity >95%In StockPharmaceutical Standards
| CAS No. | 20434-05-3 |
| Molecular Formula | C14H15O4P |
| Molecular Weight | 278.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Bis(4-methoxyphenyl)phosphinic acid (CAS 20434-05-3) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C14H15O4P. Molecular weight: 278.24 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C14H15O4P |
| Molecular Weight | 278.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Bis Standards
- 2-[4-(2-methoxyphenyl)-4-methyl-2,5-dioxoimidazolidin-1-yl]acetic acid (CAS 1152641-90-1)
- 3-(1-(4-Methoxyphenyl)-2,5-dioxoimidazolidin-4-yl)propanoic acid (CAS 1173293-42-9)
- (E)-4-(2-(2-(4-methoxyphenyl)acetyl)hydrazinyl)-4-oxobut-2-enoic acid (CAS 314765-36-1)
- 2-[4-(4-methoxyphenyl)-4-methyl-2,5-dioxoimidazolidin-1-yl]acetic acid (CAS 956742-88-4)
- 1-((2-Methoxyphenyl)carbamoyl)piperidine-3-carboxylic acid (CAS 923153-65-5)
- 2-[(3-Methoxyphenyl)methylene]-propanedioic Acid 1,3-Diethyl Ester (CAS 6771-54-6)
- 3-[4-(4-Methoxyphenyl)-1-piperazinyl]-3-oxopropanoic acid (CAS 896521-67-8)
- Methyl ((1-(4-methoxyphenyl)-5-oxopyrrolidin-3-yl)methyl)carbamate (CAS 954681-24-4)
Recommended Standards
- 3-(2-Amino-phenylamino)-2-cyano-acrylic acid ethyl ester (CAS 21025-47-8)
- Bis(5-nitropyridin-2-yl)sulfane (CAS 2127-11-9)
- 2-(2,4-Dinitrophenylthio)pyrimidine (CAS 66474-53-1)
- Ethyl Isobutyrate (CAS 97-62-1)
- 3-(Pyrimidin-2-yl)aniline (CAS 69491-56-1)
- Ethyl 7-cyclopropyl-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate (CAS 1245807-84-4)
- Vitamin K1 Impurity 67 (CAS 4444-14-8)
- Baloxavir Impurity 110 (CAS CATO-C4X-2108110)
- 2-Methyl-N-(2-(2-phenylpyrimidin-5-yl)ethyl)benzamide (CAS 2034343-21-8)
- Semaglutide Impurity 161 (x TFA Salt) (CAS CATO-C4X-2226161)
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