Formaldehyde, polymer with [1,1'-biphenyl]-4-ol CAS 25820-85-3
| CAS No. | 25820-85-3 |
| Molecular Formula | C12H10O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Formaldehyde, polymer with [1,1'-biphenyl]-4-ol (CAS 25820-85-3) is a high-purity analytical reference standard with the molecular formula C12H10OCH2O and a molecular weight of 200.24 g/mol.
The molecular framework of Formaldehyde, polymer with [1,1'-biphenyl]-4-ol (C12H10OCH2O) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H10O CH2O |
| Molecular Weight | 200.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
Related Formaldehyde Standards
- Formaldehyde-2,4-Dinitrophenylhydrazone (CAS 1081-15-8)
- Formaldehyde-d2 (~20% in D2O) (CAS 1664-98-8)
- Formaldehyde, polymer with 6-phenyl-1,3,5-triazine-2,4-diamine and 1,3,5-triazine-2,4,6-triamine (CAS 25035-72-7)
- Formaldehyde compound with 4-(tert-butyl)phenol (1:1) (CAS 25085-50-1)
- Formaldehyde, polymer with 3-methylphenol (CAS 25086-36-6)
- Formaldehyde compound with aniline (1:1) (CAS 25214-70-4)
- Formaldehyde, polymer with 1-phenylethanone (CAS 25398-55-4)
- Formaldehyde, polymer with aziridine (CAS 25549-69-3)
Recommended Standards
- 4-(4H-1,2,4-Triazol-3-yl)piperidine (CAS 893424-25-4)
- 2-(1-(Tert-butoxycarbonyl)-1,2,3,4-tetrahydroquinolin-6-yl)-2-hydroxyacetic acid (CAS 1897041-34-7)
- Amyloid β-Protein (35-25) (CAS 147740-73-6)
- 2,3-Dihydroxypropanoic acid hemicalcium salt 207300-72-9 DL-Glyceric acid hemicalcium salt hydrate Hemicalcium DL-glycerate MFCD00149289 hemi-Calcium DL-glycerate (CAS 207300-72-9)
- (1S,2S,3R,4R)-Peramivir Impurity 59 (CAS CATO-C4X-183359)
- (Z)-α-Santalol Acetate (CAS 41414-75-9)
- 1-(Methoxymethyl)naphthalene (CAS 5903-23-1)
- (oxolan-2-yl)methanesulfonamide (CAS 859998-68-8)
- 4-Chloro-1-(3,4-difluorophenyl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 919735-36-7)
- Des-Trp25-Tirzepatide (CAS CATO-CPTD788948)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com