Tetrahydroxy-p-benzoquinonedihydrate CAS 5676-48-2
| CAS No. | 5676-48-2 |
| Molecular Formula | C6H4O6 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Tetrahydroxy-p-benzoquinonedihydrate (CAS 5676-48-2), a certified reference material (molecular formula C6H4O6H2O, MW 190.11 g/mol) for analytical method development and quality control.
Tetrahydroxy-p-benzoquinonedihydrate (C6H4O6H2O) contains a carbohydrate-derived structure. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C6H4O6 2*H2O |
| Molecular Weight | 190.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Tetrahydroxy Standards
- Tetrahydroxy-1,4-benzoquinone hydrate (CAS 123334-16-7)
- 3,5,5,7-Tetrahydroxy-4,6-dimethoxyflavone (CAS 125537-92-0)
- 5，7，3’，4’-Tetrahydroxy-3-methoxy-8，5’-diprenylflavone (CAS 1353676-65-9)
- 1,3,6,7-Tetrahydroxy-5-(3-methylbut-2-en-1-yl)-2-(2-methylbut-3-en-2-yl)-9H-xanthen-9-one (CAS 135541-40-1)
- 3α,6 β,7 β,12 β-Tetrahydroxy-5 β-cholanoic Acid (CAS 140852-41-1)
- 143724-76-9 3,4',5,7-Tetrahydroxy-8-(3-methyl-2-butenyl)flavone Tri-O-methoxymethyl Ether 3,5,7-Trihydroxy-2-(4-hydroxyphenyl)-8-(3-methyl-2-buten-1-yl)-4H-1-benzopyran-4-one 4'-Desmethylicaritin Tri-O-methoxymethyl Ether 8-Prenylkaempferol Tri-O-methoxymethyl Ether De-O-methylanhydroicaritin Tri-O-methoxymethyl Ether Desmethyl Icaritin Tri-O-methoxymethyl Ether Noranhydroicaritin Tri-O-methoxymethyl Ether (CAS 143724-76-9)
- 1(2),3(2),5(2),7(2)-Tetrahydroxy-1,3,5,7(1,3)-tetrabenzenacyclooctaphane-1(5),3(5),5(5),7(5)-tetrasulfonic acid, sodium salt (CAS 151657-13-5)
- 5，7，3’，4’-Tetrahydroxy-3-methoxy-8-geranylflavone (CAS 1605304-56-0)
Recommended Standards
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- Ethyl 3-chloro-5-methyl-2-oxohexanoate (CAS 111055-64-2)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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