Reactive Red 195 CAS 93050-79-4
| CAS No. | 93050-79-4 |
| Molecular Formula | C31H19ClN7O19S6 |
| 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 Reactive Red 195.
Reactive Red 195 (CAS 93050-79-4) is a high-purity analytical reference standard with the molecular formula C31H19ClN7O19S6Na and a molecular weight of 1044.32 g/mol.
Based on its molecular formula C31H19ClN7O19S6Na, Reactive Red 195 contains a salt form, a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 1044.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C31H19ClN7O19S6 5*Na |
| Molecular Weight | 1044.32 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 25.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 6 |
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Recommended Standards
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- 2-(Pyrimidin-2-yl)thiazole-5-carbaldehyde (CAS 1235474-02-8)
- [(2-Methylquinolin-4-yl)methyl]amine hydrochloride (CAS 1195901-42-8)
- Peptide Impurity (CAS CATO-CPTD788810)
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