(1r,2r,5s,8r,9s,10r,11s,12s)-12-hydroxy-11-methyl-6-methylene-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadecane-9-carboxylic acid 49844-90-8 KST-1A5075 CAS 49844-90-8

Purity 97%+In StockPharmaceutical Standards
CAS No.49844-90-8
Molecular FormulaC5H11ClN2S
Molecular Weight166.67 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(1r,2r,5s,8r,9s,10r,11s,12s)-12-hydroxy-11-methyl-6-methylene-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadecane-9-carboxylic acid 49844-90-8 KST-1A5075 CAS 49844-90-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 166.67 g/mol gives (1r,2r,5s,8r,9s,10r,11s,12s)-12-hydroxy-11-methyl-6-methylene-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadecane-9-carboxylic acid 49844-90-8 KST-1A5075 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(1r,2r,5s,8r,9s,10r,11s,12s)-12-hydroxy-11-methyl-6-methylene-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadecane-9-carboxylic acid 49844-90-8 KST-1A5075 (CAS 49844-90-8) is a high-purity analytical reference standard with the molecular formula C5H11ClN2S and a molecular weight of 166.67 g/mol.

Owing to sulfur-containing functionality, chlorine substitution, (1r,2r,5s,8r,9s,10r,11s,12s)-12-hydroxy-11-methyl-6-methylene-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadecane-9-carboxylic acid 49844-90-8 KST-1A5075 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 166.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

As a certified reference material (CRM), (1r,2r,5s,8r,9s,10r,11s,12s)-12-hydroxy-11-methyl-6-methylene-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadecane-9-carboxylic acid 49844-90-8 KST-1A5075 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 FormulaC5H11ClN2S
Molecular Weight166.67 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1971
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

Recommended Standards

Why CATO?