2,5-Dihydroxy-1,4-benzenediphosphonic acid CAS 91633-16-8
| CAS No. | 91633-16-8 |
| Molecular Formula | C6H8O8P2 |
| Molecular Weight | 270.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carbohydrate-derived structure, a phosphate ester group, 2,5-Dihydroxy-1,4-benzenediphosphonic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 270.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
2,5-Dihydroxy-1,4-benzenediphosphonic acid (CAS 91633-16-8) is a high-purity analytical reference standard with the molecular formula C6H8O8P2 and a molecular weight of 270.07 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.
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 | C6H8O8P2 |
| Molecular Weight | 270.07 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1983 |
Related Dihydroxy Standards
- 4,5-Dihydroxy-1-(hydroxymethyl)anthracene-9,10-dione (CAS 128341-04-8)
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- 2-((5-Bromoquinolin-8-yl)oxy)acetonitrile (CAS 88757-42-0)
- N-(2-Cyano-3-methylbutan-2-yl)-2-((4-methylquinolin-2-yl)thio)acetamide (CAS 785707-15-5)
- Moexipril USP RC D (CAS 1356058-19-9)
- 4,5-Dimethylthiophene-3-carbonyl chloride (CAS 1160248-80-5)
- 6-Propyl-5,6-dihydro-2H-pyran-2-one (CAS 16400-69-4)
- [3-31]-Semaglutide D (Sodium salt) (CAS CATO-C4X-2226119)
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