17a(H),21a(H)-Hopane CAS 33281-23-1

Purity 97%+In StockPharmaceutical Standards
CAS No.33281-23-1
Molecular FormulaC30H52
Molecular Weight412.73 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

17a(H),21a(H)-Hopane CAS 33281-23-1 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 17a(H),21a(H)-Hopane.

17a(H),21a(H)-Hopane (CAS 33281-23-1), molecular formula C30H52 and molecular weight 412.73 g/mol, is a CATO reference standard with documented purity and traceability.

17a(H),21a(H)-Hopane (C30H52) contains an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

Physical & Chemical Properties

Molecular FormulaC30H52
Molecular Weight412.73 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1966

Recommended Standards

Why CATO?