2,2-Dimethyl-2,3-dihydro-1H-indene CAS 20836-11-7
| CAS No. | 20836-11-7 |
| Molecular Formula | C11H14 |
| Molecular Weight | 146.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,2-Dimethyl-2,3-dihydro-1H-indene is closely related to an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2,2-Dimethyl-2,3-dihydro-1H-indene (CAS 20836-11-7), molecular formula C11H14 and molecular weight 146.23 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,2-Dimethyl-2,3-dihydro-1H-indene (C11H14) contains an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 146.23 g/mol, it falls into the low-molecular-weight range. 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).
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 Formula | C11H14 |
| Molecular Weight | 146.23 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Dimethyl Standards
- 2,5-dimethyl-2,5-hexanediol (CAS 110-03-2)
- 1,2-Dimethyl-3-(prop-1-en-2-yl)benzene (CAS 91130-37-9)
- 2,4-Dimethyl-1-(prop-2-en-1-yl)benzene (CAS 3840-33-3)
- 4,7-Dimethyl-2,3-dihydro-1H-indene (CAS 6682-71-9)
- 2,4-Dimethyl-2,5-dihydrothiophene 1,1-dioxide (CAS 10033-92-8)
- 3,4-Dimethyl-2,5-dihydrothiophene 1,1-dioxide (CAS 18214-56-7)
- 3,5-Dimethyl-perhydro-1,3,5-oxadiazine-4-thione (CAS 25952-35-6)
- 3,3-dimethyl-1-(methylsulfanyl)butan-2-one (CAS 39199-12-7)
Recommended Standards
- 2-(tert-Butyl)-2-methylpropane-1,3-diol (CAS 25462-45-7)
- 2,2-Dimethylhexane-1,3-diol (CAS 22006-96-8)
- 2-(sec-Butyl)-2-methylpropane-1,3-diol (CAS 813-60-5)
- 2,3-Dimethoxy-2,3-dimethylbutane (CAS 6091-59-4)
- 2-Chloro-1-(4-(2-chlorophenyl)piperazin-1-yl)ethan-1-one (CAS 330601-49-5)
- 6-Methyl-5-(4-(trifluoromethoxy)phenyl)thiazolo[3,2-b][1,2,4]triazole (CAS 1956386-34-7)
- N5-(3-chloro-4-fluorophenyl)-4-chloro-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-5-carboxamide (CAS 649665-04-3)
- 2-Chloro-4-methyl-6-nitrobenzonitrile (CAS 2112-15-4)
- N'-[(1E)-{4-[(2,4-dichlorophenyl)methoxy]phenyl}methylidene]-2-[(3-nitrophenyl)amino]acetohydrazide (CAS 301194-60-5)
- (8-Amino-3,4-dihydro-2H-1,4-ethanothieno[2,3-b][1,5]naphthyridin-7-yl)(4-chlorophenyl)methanone (CAS 899371-27-8)
- Norethisterone Acetate EP Impurity G (CAS 438244-27-0)
- (2S,3S)-1-Ethyl-6-oxo-2-(p-tolyl)piperidine-3-carboxylic acid (CAS 1415811-48-1)
- (6-Cyclopropylpyrimidin-4-yl)methanamine (CAS 1495860-21-3)
- Calcineurin Autoinhibitory Peptide (CAS 148067-21-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com