| CAS No. | 51364-07-9 |
| Molecular Formula | C40H56 |
| Molecular Weight | 536.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
(9-cis,15-cis)-β,β-Carotene (CAS 51364-07-9), molecular formula C40H56 and molecular weight 536.87 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (9-cis,15-cis)-β,β-Carotene (C40H56) contains a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 536.87 g/mol, it falls into the moderately-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.
As a certified reference material (CRM), (9-cis,15-cis)-β,β-Carotene 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.
| Molecular Formula | C40H56 |
| Molecular Weight | 536.87 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | Technical Grade |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |