4-Hydroxybenzene-1,3-disulfonic acid CAS 96-77-5
| CAS No. | 96-77-5 |
| Molecular Formula | C6H6O7S2 |
| Molecular Weight | 254.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C6H6O7S2, 4-Hydroxybenzene-1,3-disulfonic acid contains a carbohydrate-derived structure, a sulfone group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 254.24 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).
4-Hydroxybenzene-1,3-disulfonic acid (CAS 96-77-5) is a high-purity analytical reference standard with the molecular formula C6H6O7S2 and a molecular weight of 254.24 g/mol.
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 | C6H6O7S2 |
| Molecular Weight | 254.24 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.) | 1957 |
| Sulfur Atoms | 2 |
Related Hydroxybenzene Standards
- 3-Hydroxybenzene-1,2-disulfonamide (CAS 1243286-48-7)
- 2-Hydroxybenzene-1,3-disulfonamide (CAS 1243476-10-9)
- 4-Hydroxybenzene-1,3-disulfonamide (CAS 876487-13-7)
- 5-Acetyl-2-hydroxybenzene-1-sulfonyl chloride (CAS 66264-54-8)
- 2-{2-[(3-hydroxybenzene)amido]-1,3-thiazol-4-yl}acetic acid (CAS 926207-29-6)
- 5-Hydroxybenzene-1,2,3-tricarboxylic acid (CAS 6274-40-4)
- 5-Hydroxybenzene-1,2,4-tricarboxylic acid (CAS 4961-03-9)
- 3-Acetyl-4-hydroxybenzene-1-sulfonamide (CAS 136081-47-5)
Recommended Standards
- 4-Hydroxy-7-(p-tolyl)isobenzofuran-1,3-dione (CAS 84207-12-5)
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- 4-Formylphenyl 4-formylbenzoate (CAS 219595-78-5)
- 5-(4-Aminophenoxy)isoindoline-1,3-dione (CAS 284462-39-1)
- Methyl 2-(4-piperidinylmethoxy)benzoatehydrochloride (CAS 614730-47-1)
- 2-(Trifluoromethyl)thiazole-5-carboxylic Acid (CAS 1286734-84-6)
- 1-Chloro-2-methoxypropane (CAS 5390-72-7)
- 9H-Fluoren-9-ylmethyl N-[(1S)-2-(tert-butoxy)-1-[methoxy(methyl)carbamoyl]ethyl]carbamate (CAS 439685-19-5)
- (4-(Furan-2-carbonyl)piperazin-1-yl)(4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)methanone (CAS 380424-66-8)
- 2-Amino-2-(pyridin-4-yl)propan-1-ol (CAS 1179505-80-6)
- 5,5'-(Furan-2-ylmethylene)bis(2-methylfuran) (CAS 59212-78-1)
- n-Cyclopentylbenzo[d][1,3]dioxol-5-amine (CAS 1020923-51-6)
- 2-(Piperidin-4-ylmethyl)-4-(trifluoromethyl)pyrimidine hcl (CAS 1360437-68-8)
- Peptide 46 (H-4054.0500) (CAS 192122-40-0)
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