1,2,3,5-Tetramethyl-4-propylcyclopenta-1,3-diene CAS 83321-20-4
| CAS No. | 83321-20-4 |
| Molecular Formula | C12H20 |
| Molecular Weight | 164.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 1,2,3,5-Tetramethyl-4-propylcyclopenta-1,3-diene (CAS 83321-20-4), a certified reference material (molecular formula C12H20, MW 164.29 g/mol) for analytical method development and quality control.
The molecular framework of 1,2,3,5-Tetramethyl-4-propylcyclopenta-1,3-diene (C12H20) is characterized by an organic framework. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 Formula | C12H20 |
| Molecular Weight | 164.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1980 |
Related Tetramethyl Standards
- 1,2,3,5-Tetramethyl-4-propylcyclopenta-1,3-diene (CAS 64417-12-5)
- 4,4,5,5-Tetramethyl-1,3,2-dioxaphospholane 2-Oxide (CAS 16352-18-4)
- 4,4,5,5-Tetramethyl-1,3,2-dioxaphospholan-2-ol (CAS 58954-06-6)
- 1-(2,3,4,5-Tetramethyl-1H-pyrrol-1-yl)ethanone (CAS 120892-95-7)
- 1-(1,2,4,5-Tetramethyl-1H-pyrrol-3-yl)ethanone (CAS 52649-29-3)
- 4,4,5,5-Tetramethyl-2-(prop-2-yn-1-yl)-1,3,2-dioxaborolane (CAS 1337935-39-3)
- 4,4,5,5-tetramethyl-2-prop-1-ynyl-1,3,2-dioxaborolane (CAS 347389-75-7)
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