Anthraquinone-2,6-disulfonic acid CAS 84-50-4
| CAS No. | 84-50-4 |
| Molecular Formula | C14H8O8S2 |
| Molecular Weight | 368.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Anthraquinone-2,6-disulfonic acid (CAS 84-50-4), molecular formula C14H8O8S2 and molecular weight 368.34 g/mol, is a CATO reference standard with documented purity and traceability.
Anthraquinone-2,6-disulfonic acid (C14H8O8S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. 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.
Physical & Chemical Properties
| Molecular Formula | C14H8O8S2 |
| Molecular Weight | 368.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 2 |
Related Anthraquinone Standards
- Anthraquinone Impurity 2 (CAS 82-21-3)
- Anthraquinone Impurity 2 (CAS 92439-42-4)
- Anthraquinone Related Compound 4 (CAS 69119-31-9)
- 9,10-Anthraquinone-2-sulfonicacid (CAS 84-48-0)
- Anthraquinone-2-carbonyl Chloride (CAS 6470-87-7)
- Anthraquinone Impurity 3 (CAS 41611-76-1)
- Anthraquinone Related Compound 1 (CAS 17062-54-3)
- Anthraquinone Impurity 2 (CAS 2961-04-8)
Recommended Standards
- 9,10-Dioxo-9,10-dihydroanthracene-2,7-disulfonic acid (CAS 84-49-1)
- Bis(4-methoxyphenyl) furan-2,4-dicarboxylate (CAS 57467-49-9)
- 9,10-Dioxo-9,10-dihydroanthracene-1,8-disulfonic acid (CAS 82-48-4)
- Diethyl 1,1'-(ethane-1,2-diyl)bis(4,5-dioxopyrrolidine-3-carboxylate) (CAS 7399-16-8)
- 2-Chloro-n-(2-phenylethyl)-n-(thiophen-2-ylmethyl)acetamide (CAS 335251-02-0)
- 1,1-Dimethoxyoctane (CAS 10022-28-3)
- 3-Cyclopentylpropionamide (CAS 935-10-4)
- Ethyl 1-methyl-1,2,3,6-tetrahydropyridine-4-carboxylate (CAS 40175-06-2)
- 7-Methyl-2,5,7-triazaspiro[3.4]octane-6,8-dione hydrochloride (CAS 2436296-66-9)
- Methyl 5-bromo-3-(difluoromethyl)picolinate (CAS 1628915-68-3)
- 3-(3-Fluorophenyl)-2,7-dimethylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid (CAS 1204297-72-2)
- 2-((((9H-Fuoren-9-yl)methoxy)carbonyl)amino)-4-methoxy-4-oxobutanoic acid (CAS 1053239-17-0)
- (4,4-Difluorotetrahydrofuran-2-yl)methanamine hydrochloride (CAS 2137857-48-6)
- D-[Ala]24-Semaglutide (CAS CATO-C4X-2226126)
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