Copper phthalocyanine-2,9,16,24-tetrasulfonic acid tetrasodium salt CAS 68239-53-2
| CAS No. | 68239-53-2 |
| Molecular Formula | C32H12CuN8O12S4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Copper phthalocyanine-2,9,16,24-tetrasulfonic acid tetrasodium salt (CAS 68239-53-2), molecular formula C32H12CuN8O12S4Na and molecular weight 915.27 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Copper phthalocyanine-2,9,16,24-tetrasulfonic acid tetrasodium salt (C32H12CuN8O12S4Na) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 31.0, corresponding to approximately 31 ring(s) or double-bond equivalent(s). With a molecular weight of 915.27 g/mol, it falls into the high-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C32H12CuN8O12S4 4*Na |
| Molecular Weight | 915.27 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) | 31.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 4 |
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