2-(2-Isopropylphenyl)-1H-indene-1,3(2H)-dione CAS 13935-91-6
| CAS No. | 13935-91-6 |
| Molecular Formula | C18H16O2 |
| Molecular Weight | 264.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-(2-Isopropylphenyl)-1H-indene-1,3(2H)-dione.
2-(2-Isopropylphenyl)-1H-indene-1,3(2H)-dione (CAS 13935-91-6), molecular formula C18H16O2 and molecular weight 264.32 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, a hydroxyl group, an ether linkage, 2-(2-Isopropylphenyl)-1H-indene-1,3(2H)-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 264.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 Formula | C18H16O2 |
| Molecular Weight | 264.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
Related Isopropylphenyl Standards
- 2-(4-Isopropylphenyl)quinazolin-4(1H)-one (CAS 82256-10-8)
- 2-(4-Isopropylphenyl)-2-morpholinoacetic acid (CAS 1017321-20-8)
- 1-(4-Isopropylphenyl)isoquinolin-3(2H)-one (CAS 61561-65-7)
- 2-(4-Isopropylphenyl)-1H-indole-3-carbaldehyde (CAS 590390-96-8)
- 2-(4-Isopropylphenyl)imidazo[1,2-a]pyrimidine-3-carbaldehyde (CAS 891765-56-3)
- 7-(4-Isopropylphenyl)-7-oxoheptanoic acid (CAS 898791-39-4)
- 1-(4-Isopropylphenyl)-3-phenylpropane-1,3-dione (CAS 63250-25-9)
- 2-(4-Isopropylphenyl)-2,3-dihydroquinazolin-4(1H)-one (CAS 83800-96-8)
Recommended Standards
- Ethyl 4-(3,4-diaminophenyl)piperazine-1-carboxylate (CAS 1393442-71-1)
- tert-Butyl (2-(2-formyl-6-methylpyridin-4-yl)ethyl)carbamate (CAS 1393569-26-0)
- tert-Butyl N-{[(2-methylphenyl)carbamoyl]methyl}carbamate (CAS 1387759-21-8)
- tert-Butyl (2-(6-formyl-4-methylpyridin-2-yl)ethyl)carbamate (CAS 1393575-74-0)
- 3-(4-Bromophenoxy)benzoic acid (CAS 77317-51-2)
- 2-(tert-Butoxy)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazine (CAS 1448788-59-7)
- 1,3-Dimethyl-1,6-dihydro-2H-pyrrolo[3,4-d]pyrimidine-2,4(3H)-dione (CAS 1396807-57-0)
- N-[3-(Dimethylamino)Propyl]-1,1,2,2,3,3,4,4,4-Nonafluorobutane-1-Sulphonamide (CAS 68555-77-1)
- Dibenzo[b,d]furan-1-amine (CAS 50548-40-8)
- 3-(2-Benzyl-4-chlorophenoxy)pyrrolidine (CAS 946760-55-0)
- Z-D-Asp(OtBu)-OH (CAS 71449-08-6)
- Platyconic acid A (CAS 68051-23-0)
- 1-(Difluoromethyl)quinolin-2(1H)-one (CAS 2341-26-6)
- Semaglutide Impurity 4 (CAS CATO-C4X-22264)
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