(3S,3aS,5aS,6R,9aS,9bS)-Dodecahydro-3-hydroxy-3a,6-dimethyl-7-oxo-1H-benz[e]indene-6-propanoic Acid 1759-35-9 17|A-Hydroxy-5-oxo-A-nor-3,5-secoandrostan-3-oic Acid 3,5-Seco-A-norandrostan-17|A-ol-5-on-3-oic Acid 4-Nor-3,5-seco-5-oxo-17|A-hydroxyandrostan-3-oic Acid [3S-(3|A,3a|A,5a|A,6|A,9a|A,9b|A)]-Dodecahydro-3-hydroxy-3a,6-dimethyl-7-oxo-1H-benz[e]indene-6-propanoic Acid CAS 1759-35-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1759-35-9
Molecular FormulaC18H28O4
Molecular Weight308.41 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3S,3aS,5aS,6R,9aS,9bS)-Dodecahydro-3-hydroxy-3a,6-dimethyl-7-oxo-1H-benz[e]indene-6-propanoic Acid 1759-35-9 17|A-Hydroxy-5-oxo-A-nor-3,5-secoandrostan-3-oic Acid 3,5-Seco-A-norandrostan-17|A-ol-5-on-3-oic Acid 4-Nor-3,5-seco-5-oxo-17|A-hydroxyandrostan-3-oic Acid [3S-(3|A,3a|A,5a|A,6|A,9a|A,9b|A)]-Dodecahydro-3-hydroxy-3a,6-dimethyl-7-oxo-1H-benz[e]indene-6-propanoic Acid CAS 1759-35-9 chemical structure

Description

Based on its molecular formula C18H28O4, (3S,3aS,5aS,6R,9aS,9bS)-Dodecahydro-3-hydroxy-3a,6-dimethyl-7-oxo-1H-benz[e]indene-6-propanoic Acid 1759-35-9 17|A-Hydroxy-5-oxo-A-nor-3,5-secoandrostan-3-oic Acid 3,5-Seco-A-norandrostan-17|A-ol-5-on-3-oic Acid 4-Nor-3,5-seco-5-oxo-17|A-hydroxyandrostan-3-oic Acid [3S-(3|A,3a|A,5a|A,6|A,9a|A,9b|A)]-Dodecahydro-3-hydroxy-3a,6-dimethyl-7-oxo-1H-benz[e]indene-6-propanoic Acid contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 308.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

(3S,3aS,5aS,6R,9aS,9bS)-Dodecahydro-3-hydroxy-3a,6-dimethyl-7-oxo-1H-benz[e]indene-6-propanoic Acid 1759-35-9 17|A-Hydroxy-5-oxo-A-nor-3,5-secoandrostan-3-oic Acid 3,5-Seco-A-norandrostan-17|A-ol-5-on-3-oic Acid 4-Nor-3,5-seco-5-oxo-17|A-hydroxyandrostan-3-oic Acid [3S-(3|A,3a|A,5a|A,6|A,9a|A,9b|A)]-Dodecahydro-3-hydroxy-3a,6-dimethyl-7-oxo-1H-benz[e]indene-6-propanoic Acid (CAS 1759-35-9), molecular formula C18H28O4 and molecular weight 308.41 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 FormulaC18H28O4
Molecular Weight308.41 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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