62625-29-0 Sodium hydrogen 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2-methylphenolate) S,S-dioxide Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-methyl-, sodium salt (1:1) Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-methyl-, monosodium salt EINECS 263-654-8 Sodium cresol red Cresol red sodium salt CAS 62625-29-0
| CAS No. | 62625-29-0 |
| Molecular Formula | C21H29O5S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 62625-29-0 Sodium hydrogen 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2-methylphenolate) S,S-dioxide Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-methyl-, sodium salt (1:1) Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-methyl-, monosodium salt EINECS 263-654-8 Sodium cresol red Cresol red sodium 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.
62625-29-0 Sodium hydrogen 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2-methylphenolate) S,S-dioxide Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-methyl-, sodium salt (1:1) Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-methyl-, monosodium salt EINECS 263-654-8 Sodium cresol red Cresol red sodium salt (CAS 62625-29-0) is a high-purity analytical reference standard with the molecular formula C21H29O5SNa and a molecular weight of 416.51 g/mol.
Based on its molecular formula C21H29O5SNa, 62625-29-0 Sodium hydrogen 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2-methylphenolate) S,S-dioxide Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-methyl-, sodium salt (1:1) Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-methyl-, monosodium salt EINECS 263-654-8 Sodium cresol red Cresol red sodium salt contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 416.51 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C21H29O5S Na |
| Molecular Weight | 416.51 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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 |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Sulfur Atoms | 1 |
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