Sodium 4-hydroxyphenyl phosphate CAS 20368-79-0
| CAS No. | 20368-79-0 |
| Molecular Formula | C6H5O5P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Sodium 4-hydroxyphenyl phosphate (CAS 20368-79-0), molecular formula C6H5O5PNa and molecular weight 211.06 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H5O5PNa, Sodium 4-hydroxyphenyl phosphate contains a carbohydrate-derived structure, a phosphate ester group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 211.06 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C6H5O5P 2*Na |
| Molecular Weight | 211.06 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.) | 1962 |
Related Sodium Standards
- 6-(2-Hydroxyphenyl)hexanoic acid (CAS 100257-13-4)
- 3-(2-Hydroxyphenyl)-5-(2-methoxyethyl)-1-methyltetrahydropyrrolo[3,4-c]pyrazole-4,6(1H,5H)-dione (CAS 1005099-98-8)
- 5-(2-Hydroxyphenyl)-3a-methyl-octahydropyrrolo[2,3-b]pyrrol-2-one (CAS 1005100-31-1)
- 4-hydroxyphenyl diiSopropyl phosphate (CAS 100524-86-5)
- (E)-7-(2-Hydroxyphenyl)-1-phenylhept-4-en-3-one (CAS 100667-52-5)
- 1-(4-Hydroxyphenyl)propane-1,2-dione (CAS 10087-36-2)
- 3-(4-Hydroxyphenyl)-2-[4-(trifluoromethoxy)benzoylamino]propanoic acid (CAS 1008918-81-7)
- Ethyl 2-(4-hydroxyphenyl)-2-(N-methylacetamido)acetate (CAS 1008946-23-3)
Recommended Standards
- 3-(trifluoromethyl)pyrrolidine hydrochloride (CAS 1189485-03-7)
- 4,7-Bis(5-bromothiophen-2-yl)-2-octyl-2H-benzo[d][1,2,3]triazole (CAS 1254062-39-9)
- trans-3-methoxycyclobutane-1-methamine (CAS 1438241-08-7)
- Cefprozil EP Impurity K Mixture(Isomer 1,2,3,4) (CAS CATO-C4X-149226)
- 7,8-Dimethyl-[1,2,4]triazolo[4,3-b]pyridazin-6-amine (CAS 68675-37-6)
- 2-Chloro-1-(3,4-difluoro-phenyl)-propan-1-one (CAS 561009-02-7)
- 4-(1-Methyl-1H-imidazol-5-yl)pyridine (CAS 1572047-31-4)
- 6-Fluorocytosine (CAS 2193-47-7)
- 5-Methyl-1-(pyridin-3-yl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1403577-74-1)
- Liraglutide Impurity 25 (CAS CATO-C4X-199225)
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