2,2',3,3'-Tetrahydro-1,1'-spirobi[indene] CAS 7197-62-8
| CAS No. | 7197-62-8 |
| Molecular Formula | C17H16 |
| Molecular Weight | 220.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2,2',3,3'-Tetrahydro-1,1'-spirobi[indene] (CAS 7197-62-8), a certified reference material (molecular formula C17H16, MW 220.31 g/mol) for analytical method development and quality control.
Owing to a polycyclic aromatic system, 2,2',3,3'-Tetrahydro-1,1'-spirobi[indene] is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 220.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C17H16 |
| Molecular Weight | 220.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
Related Tetrahydro Standards
- 1-((4,5,6,7-Tetrahydro-1H-indazol-3-yl)methyl)pyrrolidin-3-amine (CAS 1713649-40-1)
- 1,1',3,3'-Tetrahydro-2,2'-spirobi[indene] (CAS 7156-46-9)
- 5',6',7',8'-Tetrahydro-1'H-spiro[cyclohexane-1,2'-quinazolin]-4'(3'H)-one (CAS 30152-60-4)
- 5',6',7',8'-tetrahydro-3'H-spiro[cyclohexane-1,2'-quinazolin]-4'(4a'H)-one (CAS CATO-C4X-144915)
- 2-Methyl-2-(5,6,7,8-tetrahydro-1,5-naphthyridin-2-yl)propanoic acid (CAS 2387594-70-7)
- 4-(5,6,7,8-Tetrahydro-1,8-naphthyridin-2-yl)butanoic acid (CAS 332884-21-6)
- Ethyl 2-(5,6,7,8-tetrahydro-1,8-naphthyridin-2-yl)acetate (CAS 721920-80-5)
- Methyl 2-(5,6,7,8-tetrahydro-1,5-naphthyridin-2-yl)propanoate (CAS 2387597-90-0)
Recommended Standards
- 2,2'-(Piperazine-1,4-diyl)bis(2-methylpropanenitrile) (CAS 408510-04-3)
- 2,4,6-Trimethyl-3-morpholinoaniline (CAS 847414-28-2)
- 2,2'-((Oxybis(ethane-2,1-diyl))bis(oxy))bis(N-methylethanamine) (CAS 68960-89-4)
- 2,5,8,11-Tetraoxapentadecane (CAS 7382-30-1)
- 2,4-Dibromo-5-fluoroaniline (CAS 1000578-17-5)
- (Cyclopropylmethyl)urea (CAS 61600-98-4)
- 1-(3-Fluorophenyl)-3-oxocyclohexanecarbonitrile (CAS 1956331-06-8)
- 2-(Difluoromethyl)-4,5-diiodo-3-methoxypyridine (CAS 1805330-98-6)
- 3-Morpholino-3-thioxopropanenitrile (CAS 313353-02-5)
- Suvorexant Impurity 18 (CAS 1785606-18-9)
- 1-Morpholinoanthracene-9,10-dione (CAS 7114-31-0)
- 1,6-Dihydroxy-3-methyl-8-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)anthracene-9,10-dione (CAS 52731-38-1)
- 7-Hydroxy-2-(2-hydroxyphenyl)-5,8-dimethoxychroman-4-one (CAS 1351338-14-1)
- Semaglutide impurity 261 (CAS CATO-C4X-2226261)
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