Potassium 4-hydroxy-3-(sulfothio)phenolate CAS 88891-36-5
| CAS No. | 88891-36-5 |
| Molecular Formula | C6H6O5S2 |
| Molecular Weight | N/A |
| 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 Potassium 4-hydroxy-3-(sulfothio)phenolate.
CATO supplies Potassium 4-hydroxy-3-(sulfothio)phenolate (CAS 88891-36-5), a certified reference material (molecular formula C6H6O5S2K, MW 261.33 g/mol) for analytical method development and quality control.
Owing to a carbohydrate-derived structure, a sulfone group, Potassium 4-hydroxy-3-(sulfothio)phenolate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 261.33 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.
As a certified reference material (CRM), Potassium 4-hydroxy-3-(sulfothio)phenolate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H6O5S2 K |
| Molecular Weight | 261.33 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Sulfur Atoms | 2 |
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Recommended Standards
- tert-Butyl hexahydro-1H-pyrido[1,2-a]pyrazine-2(6H)-carboxylate (CAS 1493766-60-1)
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- (1R,3R)-3-((tert-butoxycarbonyl)amino)-1-methylcyclopentane-1-carboxylic acid (CAS 2287346-23-8)
- Cefepime Impurity 16 (CAS CATO-C4X-119316)
- N-(2-methoxyethyl)-3-phenylprop-2-yn-1-amine hydrochloride (CAS 1050126-55-0)
- ACTH (4-10) (CAS 4037-01-8)
- Lornoxicam impurity 91 (CAS 1629361-76-7)
- 5'-GNTI Dihydrochloride (CAS 351183-88-5)
- 2-(3-Nitrophenyl)-2-oxoethyl 3-aminobenzoate (CAS 351896-55-4)
- Immunstimulating Peptide, human (CAS 94773-24-7)
Why CATO?
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