3,5-Dihydroxy-4-(phosphonooxy)benzoic acid CAS 25054-56-2
| CAS No. | 25054-56-2 |
| Molecular Formula | C7H7O8P |
| Molecular Weight | 250.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3,5-Dihydroxy-4-(phosphonooxy)benzoic acid.
3,5-Dihydroxy-4-(phosphonooxy)benzoic acid (CAS 25054-56-2), molecular formula C7H7O8P and molecular weight 250.10 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carbohydrate-derived structure, a phosphate ester group, 3,5-Dihydroxy-4-(phosphonooxy)benzoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 250.10 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C7H7O8P |
| Molecular Weight | 250.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
Related Dihydroxy Standards
- Ethyl 4,6-dihydroxy-2-oxo-2H-chromene-3-carboxylate (CAS 100037-65-8)
- Ethyl 4,7-dihydroxy-2-oxo-2H-chromene-3-carboxylate (CAS 100037-66-9)
- Ethyl 4,8-dihydroxy-2-oxo-2H-chromene-3-carboxylate (CAS 100037-67-0)
- Ethyl 5,7-dihydroxy-2-oxo-2H-chromene-3-carboxylate (CAS 108171-22-8)
- (6,7-Dihydroxy-4-methyl-2-oxo-2H-chromen-3-yl)-acetic acid (CAS 388119-13-9)
- 2-(5,7-Dihydroxy-4-methyl-2-oxo-2h-chromen-3-yl)acetic acid (CAS 5864-00-6)
- 2-(7,8-Dihydroxy-4-methyl-2-oxo-2h-chromen-3-yl)acetic acid (CAS 773866-17-4)
- Ethyl 7,8-dihydroxy-2-oxo-2H-chromene-3-carboxylate (CAS 810676-31-4)
Recommended Standards
- 3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-6,8-dihydro-5H-imidazo[2,1-c][1,4]oxazine (CAS 2246565-04-6)
- 3-Amino-2-methoxypyridine-5-boronic acid pinacol ester, 97% (CAS 893440-50-1)
- 2-Methoxy-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine (CAS 2369772-10-9)
- 3-Hydroxy-2-methoxybenzeneboronic acid pinacol ester (CAS 2121514-31-4)
- (S,R)-BisPh-Quinox (CAS 2411386-00-8)
- 2-(Trifluoromethyl)-1H-indole-6-carboxylic acid (CAS 1638764-11-0)
- 4-Phenylnaphthalene-1,2-dione (CAS 73671-07-5)
- trans-(1R,3R)-3-(Trifluoromethyl)cyclohexanol (CAS 75091-91-7)
- 4,4'-Dimethoxy-[2,2'-bipyridine] 1,1'-dioxide (CAS 84175-10-0)
- Silydianin-13C-d3 (CAS CATO-C4X-222412)
- 2-Oxo-2H-pyrimido[1,2-b]pyridazine-4-carboxylic acid (CAS 30247-69-9)
- 2-((2-Fluorobenzyl)thio)-6-methyl-4-(trifluoromethyl)-5,6,7,8-tetrahydroquinoline-3-carbonitrile (CAS 626228-62-4)
- 7,7-Dihydroxy-4,4-spirobi[chromene]-2,2(3H,3H)-dione (CAS 780821-74-1)
- Tetrapeptide-3 (CAS 827306-97-8)
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