Malachite Green-D5 picrate CAS 1258668-21-1
| CAS No. | 1258668-21-1 |
| Molecular Formula | - |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Malachite Green-D5 picrate (CAS 1258668-21-1), molecular formula C23H20D5N2C6H2N3O7 and molecular weight 562.59 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Malachite Green-D5 picrate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 562.59 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C23H20D5N2 C6H2N3O7 |
| Molecular Weight | 562.59 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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 |
| Degree of Unsaturation (DBE) | 21.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 5 |
Related Malachite Standards
Recommended Standards
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- 2-Methyl-2-(propylamino)-4-(1h-pyrazol-1-yl)butanamide (CAS 1247766-76-2)
- (E)-1-Bromo-3-(2-bromovinyl)benzene (CAS 115665-72-0)
- Higenamine Impurity 3 (CAS CATO-C4X-32043)
- 3-chloro-4,5-dihydro-1H-benzo[b]azepin-2(3H)-one (CAS 86499-23-2)
- 7-Oxo-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxamide (CAS 918794-78-2)
- 2,2'-((2-(Diethylamino)ethyl)azanediyl)bis(ethan-1-ol) (CAS 3424-25-7)
- 6-Oxo-4-(trifluoromethyl)-1,6-dihydropyridine-2-carbaldehyde (CAS 1004794-10-8)
- 2,3-Diaminonaphthalene (CAS 771-97-1)
- Characteristic MSH-Tetrapeptide (CAS 4289-02-5)
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