7,8,8-Trimethyl-1-phenyl-4,5,6,7-tetrahydro-1H-4,7-methanoindazole-3-carboxylic acid CAS 326021-49-2
| CAS No. | 326021-49-2 |
| Molecular Formula | C18H20N2O2 |
| Molecular Weight | 296.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7,8,8-Trimethyl-1-phenyl-4,5,6,7-tetrahydro-1H-4,7-methanoindazole-3-carboxylic acid (CAS 326021-49-2), molecular formula C18H20N2O2 and molecular weight 296.36 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 7,8,8-Trimethyl-1-phenyl-4,5,6,7-tetrahydro-1H-4,7-methanoindazole-3-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 296.36 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 | C18H20N2O2 |
| Molecular Weight | 296.36 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Related Trimethyl Standards
- 1,6,6-Trimethyl-1,2,6,7,8,9-hexahydrophenanthro[1,2-b]furan-10,11-dione (CAS 17545-07-2)
- (R)-1,6,6-Trimethyl-1,2,6,7,8,9-hexahydrophenanthro[1,2-b]furan-10,11-dione (CAS 4733-35-1)
- 4-(2,6,6-Trimethyl-4-oxo-4,5,6,7-tetrahydro-1H-indol-1-yl)benzamide (CAS 497061-30-0)
- 2-(2-Oxo-2-(1,2,5-trimethyl-1H-pyrrol-3-yl)ethyl)isoindoline-1,3-dione (CAS 849458-97-5)
- Trimethyl(9-methyl-9H-fluoren-9-yl)germane (CAS 61857-68-9)
- 2,6,6-Trimethyl-1-[4-(propan-2-yl)phenyl]-4,5,6,7-tetrahydro-1H-indol-4-one (CAS 627836-52-6)
- N-(2-(3,4,5-Trimethyl-1H-pyrazol-1-yl)pyrimidin-5-yl)furan-2-carboxamide (CAS 1421483-35-3)
- 4-(2,3,3-Trimethyl-3H-indol-1-ium-1-yl)butane-1-sulfonate (CAS 54136-26-4)
Recommended Standards
- 7-(4-Biphenyl)-7-oxoheptanoic acid (CAS 362670-19-7)
- 8-(1,1-Dimethylpropyl)-2,4-dioxo-1,3-diazaspiro[4.5]decane-3-acetic acid (CAS 851170-86-0)
- 6-Allyldihydronorisolysergic Acid (CAS 86891-15-8)
- Bambuterol EP Impurity C (Mixture of Enantiomers) (CAS 81732-67-4)
- 2-(2-(2-(Isopropylamino)-2-oxoethyl)thiazol-4-yl)acetic acid (CAS 927976-84-9)
- 4-methyl-2-{3-[(methylamino)methyl]phenyl}-1$l^{6},2-thiazolidine-1,1-dione hydrochloride (CAS 1798748-37-4)
- 3-Amino-3-(5-ethylfuran-2-yl)propanoic acid (CAS 682803-02-7)
- 4-(DIBROMOMETHYL)-2-FLUOROBENZONITRILE (CAS 440105-58-8)
- Ethyl 1-benzoyl-5-methyl-5-vinylpyrazolidine-3-carboxylate (CAS 582322-46-1)
- (4-Oxo-2-thioxo-1,2,3,4-tetrahydropyrimidin-5-yl)boronic acid (CAS 125177-38-0)
- 8-Amino-5-[(4-hydroxyphenyl)amino]-2-naphthalenesulfonic Acid (CAS 6357-75-1)
- 8-Methoxypsoralen (CAS 298-81-7)
- Chromostatin, bovine (CAS 133633-11-1)
- Human glucagon CRS (CAS 9007-92-5)
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