2-Formylbenzene-1,4-disulphonic acid, disodium salt CAS 51818-11-2
| CAS No. | 51818-11-2 |
| Molecular Formula | C7H4O7S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H4O7S2Na, 2-Formylbenzene-1,4-disulphonic acid, disodium salt contains a carbohydrate-derived structure, a sulfone group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 287.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-Formylbenzene-1,4-disulphonic acid, disodium salt (CAS 51818-11-2), molecular formula C7H4O7S2Na and molecular weight 287.21 g/mol, is a CATO reference standard with documented purity and traceability.
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), 2-Formylbenzene-1,4-disulphonic acid, disodium salt 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 | C7H4O7S2 2*Na |
| Molecular Weight | 287.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Sulfur Atoms | 2 |
Related Formylbenzene Standards
- 112652-88-7 3-Formylbenzene-1,2-disulfonic acid DTXSID10593453 (CAS 112652-88-7)
- 207291-88-1 4-Formylbenzene-1,3-disulfonic acid disodium salt hydrate Benzaldehyde 2,4-disulfonic acid disodium salt MFCD00150711 Sodium 4-formylbenzene-1,3-disulfonate (CAS 207291-88-1)
- 2-Formylbenzene-1-sulfonyl chloride (CAS 21639-41-8)
- Sodium 4-formylbenzene-1,3-disulfonate (CAS 33513-44-9)
- 3-Formylbenzene-1-sulfonyl chloride (CAS 53460-88-1)
- 5-Formylbenzene-1,2,3-triyl triacetate (CAS 71932-18-8)
- 2-Formylbenzene-1,4-disulfonic acid (CAS 730912-46-6)
- 4-Formylbenzene-1,3-disulfonic acid (CAS 88-39-1)
Recommended Standards
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- 2-[(7-Chloroquinolin-4-yl)thio]acetamide (CAS 861055-00-7)
- Tris[(diphenylmethylene)(2,4,6-trimethylphenyl)phosphine]platinum (CAS 89041-27-0)
- 5-((6,7-Dimethoxybenzo[d][1,3]dioxol-5-yl)methyl)-4,5-dihydroisoxazole-3-carboxylic acid (CAS 924861-72-3)
- Peptide WE-14 (CAS 115136-18-0)
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