-4a(2H)-carboxylate 218600-50-1 3,12-Dioxoolean-9(11)-en-28-oic acid methyl ester methyl (4aS,6aR,6bS,8aR,12aS,14aR,14bS)-2,2,6a,6b,9,9,12a-heptamethyl-10,14-dioxo-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-octadecahydropicene CAS 218600-50-1

Purity 97%+In StockPharmaceutical Standards
CAS No.218600-50-1
Molecular FormulaC31H46O4
Molecular Weight482.69 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

-4a(2H)-carboxylate 218600-50-1 3,12-Dioxoolean-9(11)-en-28-oic acid methyl ester methyl (4aS,6aR,6bS,8aR,12aS,14aR,14bS)-2,2,6a,6b,9,9,12a-heptamethyl-10,14-dioxo-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-octadecahydropicene CAS 218600-50-1 chemical structure

Description

Based on its molecular formula C31H46O4, -4a(2H)-carboxylate 218600-50-1 3,12-Dioxoolean-9(11)-en-28-oic acid methyl ester methyl (4aS,6aR,6bS,8aR,12aS,14aR,14bS)-2,2,6a,6b,9,9,12a-heptamethyl-10,14-dioxo-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-octadecahydropicene contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 482.69 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).

-4a(2H)-carboxylate 218600-50-1 3,12-Dioxoolean-9(11)-en-28-oic acid methyl ester methyl (4aS,6aR,6bS,8aR,12aS,14aR,14bS)-2,2,6a,6b,9,9,12a-heptamethyl-10,14-dioxo-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-octadecahydropicene (CAS 218600-50-1), molecular formula C31H46O4 and molecular weight 482.69 g/mol, is a CATO reference standard with documented purity and traceability.

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 FormulaC31H46O4
Molecular Weight482.69 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at room temperature, 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2019

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