1,2-Di-tert-butylcyclopenta-1,3-diene CAS 120937-44-2

Purity 97%+In StockPharmaceutical Standards
CAS No.120937-44-2
Molecular FormulaC13H22
Molecular Weight178.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,2-Di-tert-butylcyclopenta-1,3-diene CAS 120937-44-2 chemical structure

Description

1,2-Di-tert-butylcyclopenta-1,3-diene (CAS 120937-44-2), molecular formula C13H22 and molecular weight 178.31 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 1,2-Di-tert-butylcyclopenta-1,3-diene (C13H22) contains an organic framework. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 178.31 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

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 FormulaC13H22
Molecular Weight178.31 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1991

Recommended Standards

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