(<I>S</I>)-(-)-1,1′-binaphthyl-2,2′-diamine CAS 18531-95-8

Purity 97%+In StockPharmaceutical Standards
CAS No.18531-95-8
Molecular FormulaC20H36N2
Molecular Weight304.51 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(<I>S</I>)-(-)-1,1′-binaphthyl-2,2′-diamine CAS 18531-95-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 304.51 g/mol gives (<I>S</I>)-(-)-1,1′-binaphthyl-2,2′-diamine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(<I>S</I>)-(-)-1,1′-binaphthyl-2,2′-diamine (CAS 18531-95-8) is a high-purity analytical reference standard with the molecular formula C20H36N2 and a molecular weight of 304.51 g/mol.

(<I>S</I>)-(-)-1,1′-binaphthyl-2,2′-diamine (C20H36N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC20H36N2
Molecular Weight304.51 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Nitrogen Atoms2

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