(S,S)-NORPHOS-Rh CAS 78355-59-6

Purity 97%+In StockPharmaceutical Standards
CAS No.78355-59-6
Molecular FormulaC33H34P2Rh
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(S,S)-NORPHOS-Rh CAS 78355-59-6 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

(S,S)-NORPHOS-Rh (CAS 78355-59-6), molecular formula C33H34P2RhC8H12BF3F and molecular weight 790.48 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, (S,S)-NORPHOS-Rh (C33H34P2RhC8H12BF3F) contains organophosphorus functionality, fluorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 17.0, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 790.48 g/mol, it falls into the high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaC33H34P2Rh C8H12 BF3 F
Molecular Weight790.48 g/mol
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)17.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1979
Halogen ContentF-containing

Recommended Standards

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