508-71-4 77A9658D4X Rosenonolactone 9H-4a,1-(Epoxymethano)phenanthrene-9,12-dione, 7-ethenyldodecahydro-1,4b,7-trimethyl-, (1S-(1alpha,4aalpha,4balpha,7alpha,8abeta,10abeta))- CCRIS 6648 UNII-77A9658D4X CAS 508-71-4

Purity 97%+In StockPharmaceutical Standards
CAS No.508-71-4
Molecular FormulaC20H28O3
Molecular Weight316.43 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

508-71-4 77A9658D4X Rosenonolactone 9H-4a,1-(Epoxymethano)phenanthrene-9,12-dione, 7-ethenyldodecahydro-1,4b,7-trimethyl-, (1S-(1alpha,4aalpha,4balpha,7alpha,8abeta,10abeta))- CCRIS 6648 UNII-77A9658D4X CAS 508-71-4 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 508-71-4 77A9658D4X Rosenonolactone 9H-4a,1-(Epoxymethano)phenanthrene-9,12-dione, 7-ethenyldodecahydro-1,4b,7-trimethyl-, (1S-(1alpha,4aalpha,4balpha,7alpha,8abeta,10abeta))- CCRIS 6648 UNII-77A9658D4X.

508-71-4 77A9658D4X Rosenonolactone 9H-4a,1-(Epoxymethano)phenanthrene-9,12-dione, 7-ethenyldodecahydro-1,4b,7-trimethyl-, (1S-(1alpha,4aalpha,4balpha,7alpha,8abeta,10abeta))- CCRIS 6648 UNII-77A9658D4X (CAS 508-71-4), molecular formula C20H28O3 and molecular weight 316.43 g/mol, is a CATO reference standard with documented purity and traceability.

508-71-4 77A9658D4X Rosenonolactone 9H-4a,1-(Epoxymethano)phenanthrene-9,12-dione, 7-ethenyldodecahydro-1,4b,7-trimethyl-, (1S-(1alpha,4aalpha,4balpha,7alpha,8abeta,10abeta))- CCRIS 6648 UNII-77A9658D4X (C20H28O3) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), 508-71-4 77A9658D4X Rosenonolactone 9H-4a,1-(Epoxymethano)phenanthrene-9,12-dione, 7-ethenyldodecahydro-1,4b,7-trimethyl-, (1S-(1alpha,4aalpha,4balpha,7alpha,8abeta,10abeta))- CCRIS 6648 UNII-77A9658D4X 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 FormulaC20H28O3
Molecular Weight316.43 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

Recommended Standards

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