Pheophytin a CAS 603-17-8
| CAS No. | 603-17-8 |
| Molecular Formula | C55H74N4O5 |
| Molecular Weight | 871.20 g/mol |
| 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 Pheophytin a.
CATO supplies Pheophytin a (CAS 603-17-8), a certified reference material (molecular formula C55H74N4O5, MW 871.20 g/mol) for analytical method development and quality control.
Based on its molecular formula C55H74N4O5, Pheophytin a contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 871.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), Pheophytin a 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.
Physical & Chemical Properties
| Molecular Formula | C55H74N4O5 |
| Molecular Weight | 871.20 g/mol |
| Purity | >75% |
| 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 4 |
Related Pheophytin Standards
Recommended Standards
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- N-(Azido-PEG4)-N-bis(PEG4-t-butyl ester) (CAS 2093152-79-3)
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- 6840-28-4 (4-Methylphenyl)(oxo)diphenyl-lambda~5~-phosphane DTXSID30502229 (CAS 6840-28-4)
- trichloro(phenyl)germane (CAS 1074-29-9)
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