3,3,3',3'-Tetramethyl-2,2',3,3'-tetrahydro-1,1'-spirobi[indene]-5,5',6,6'-tetraone CAS 38475-60-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 38475-60-4 |
| Molecular Formula | C21H20O4 |
| Molecular Weight | 336.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 3,3,3',3'-Tetramethyl-2,2',3,3'-tetrahydro-1,1'-spirobi[indene]-5,5',6,6'-tetraone (CAS 38475-60-4) pharmaceutical standards reference standard. Molecular formula: C21H20O4. Molecular weight: 336.38 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C21H20O4 |
| Molecular Weight | 336.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
Related Tetramethyl Standards
- 4,4,5,5-Tetramethyl-2-(3-nonylthiophen-2-yl)-1,3,2-dioxaborolane (CAS 2096339-01-2)
- 4,4,5,5-Tetramethyl-2-(4-nonylthiophen-2-yl)-1,3,2-dioxaborolane (CAS 2096332-33-9)
- 4,4'-((2,3,5,6-Tetramethyl-1,4-phenylene)bis(ethyne-2,1-diyl))dipyridine (CAS 918801-05-5)
- 2,2,3,3-Tetramethyl-4,7,10,13-tetraoxa-3-silahexadecan-16-oic acid (CAS 1807540-77-7)
- 3-[1-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)ethenyl]dibenzothiophene (CAS 2559765-34-1)
- 2-[4-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyrazol-1-yl]-butyric acid tert-butyl ester (CAS 1940181-12-3)
- 2-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pyrazolo[1,5-a]pyrimidin-7-amine (CAS 942589-66-4)
- 2-(((4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)oxy)methyl)benzonitrile (CAS 1346708-12-0)
Recommended Standards
- 3-(Benzo[d][1,3]dioxol-5-yl)-1-(4-phenylpiperazin-1-yl)prop-2-en-1-one (CAS 346726-13-4)
- 3-[4-(2-methylpropoxy)phenyl]-1-phenyl-1h-pyrazole-4-carboxylic acid (CAS 955972-16-4)
- 3-(2-(4-Methoxyphenyl)-2-oxoethyl)-2-propylquinazolin-4(3H)-one (CAS 866010-55-1)
- 6,7-Dihydro-5H-cyclopenta[b]pyridin-2-amine (CAS 146331-19-3)
- (3-Chloropyridin-4-yl)methanesulfonyl chloride (CAS 1481254-16-3)
- 2,2':6',2''-Terpyridine-4'-carboxylic Acid (CAS 148332-36-9)
- n-Cyclopropyl-N-(2-hydroxyethyl)-4-methylpentanamide (CAS 1153137-24-6)
- 2-((5-Thioxo-4,5-dihydro-1,3,4-oxadiazol-2-yl)methoxy)acetic acid (CAS 61320-74-9)
- 2,3,4,5,6-Pentafluorophenyl 4-{[(4-methoxyphenyl)methyl]amino}-1-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 866136-92-7)
- Des-His(1)-Semaglutide (CAS CATO-C4X-2226216)
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