(4-Bromophenyl)phosphonic acid CAS 16839-13-7
| CAS No. | 16839-13-7 |
| Molecular Formula | C6H6BrO3P |
| Molecular Weight | 236.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (4-Bromophenyl)phosphonic acid (CAS 16839-13-7), a certified reference material (molecular formula C6H6BrO3P, MW 236.99 g/mol) for analytical method development and quality control.
Structurally, (4-Bromophenyl)phosphonic acid (C6H6BrO3P) contains a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 236.99 g/mol, it falls into the medium-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.
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 | C6H6BrO3P |
| Molecular Weight | 236.99 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Br-containing |
Related Bromophenyl Standards
- (2-Bromophenyl)phosphonic acid (CAS 7506-82-3)
- (3-Bromophenyl)phosphonic acid (CAS 6959-02-0)
- 1-(4-Bromophenyl)-2,2-difluoroethan-1-ol (CAS 1255706-18-3)
- 1-(3-bromophenyl)-2,2-difluoroethan-1-ol 1540018-38-9 (CAS 1540018-38-9)
- 2-(4-Bromophenyl)-2,2-difluoroethan-1-ol (CAS 1779939-06-8)
- 2-(3-Bromophenyl)-2,2-difluoroethan-1-ol (CAS 915133-40-3)
- 2-(2-Bromophenyl)-5,5-dimethyl-1,3,2-dioxaborinane (CAS 884010-16-6)
- 4-(4-Bromophenyl)-2-methylfuran (CAS 143360-73-0)
Recommended Standards
- 4-Bromo-5-fluoro-3-nitropyridin-2-ol (CAS 884495-02-7)
- 2-Bromo-5-fluoro-4-nitropyridine 1-oxide (CAS 935534-40-0)
- Mil-53(Fe) (CAS 764608-47-1)
- (6-Fluoro-4-(methoxycarbonyl)-1H-indol-2-yl)boronic acid (CAS 2459693-85-5)
- 2-(Hydroxymethyl)phenylboronic Acid (CAS 87199-14-2)
- Ethyl 2-(3-nitro-1h-1,2,4-triazol-1-yl)acetate (CAS 70965-24-1)
- 2-{3-oxo-2h,3h-[1,2,4]triazolo[4,3-a]pyridin-2-yl}acetonitrile (CAS 1016878-15-1)
- Tetramethylammonium hydrogencarbonate (CAS 58345-96-3)
- tert-Butyl ((1H-imidazol-5-yl)methyl)carbamate (CAS 1279818-06-2)
- 5-((3,5-Dimethylphenoxy)methyl)furan-2-carboxylic acid (CAS 405898-00-2)
- Iodomethane(Stabilized With Copper Chip) (CAS 74-88-4)
- Thieno[2,3-d]pyridazine-3-carbaldehyde (CAS 35670-76-9)
- 4-Homopiperazinothieno[2,3-d]pyrimidine (CAS 874781-96-1)
- Semaglutide impurity 39 (CAS CATO-C4X-222639)
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