| CAS No. | 33308-41-7 |
| Molecular Formula | C32H18N8 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of N/A g/mol gives Phthalocyanine tetrasulfonic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Phthalocyanine tetrasulfonic acid (CAS 33308-41-7), a certified reference material (molecular formula N/A, MW N/A g/mol) for analytical method development and quality control.
Phthalocyanine tetrasulfonic acid is supplied as a fully characterized reference material; its structural identity, assigned purity, and stability data are documented in the batch-specific Certificate of Analysis (COA).
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.
| Molecular Formula | C32H18N8 4*HAO3S |
| Molecular Weight | 595.62 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 |
| Degree of Unsaturation (DBE) | 27.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 1 |