(1R,4S)-4,7,7-Trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptane-1-carboxylicacid CAS 67111-66-4
| CAS No. | 67111-66-4 |
| Molecular Formula | C10H14O4 |
| Molecular Weight | 198.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
(1R,4S)-4,7,7-Trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptane-1-carboxylicacid (CAS 67111-66-4) is a high-purity analytical reference standard with the molecular formula C10H14O4 and a molecular weight of 198.22 g/mol.
Structurally, (1R,4S)-4,7,7-Trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptane-1-carboxylicacid (C10H14O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 198.22 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), (1R,4S)-4,7,7-Trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptane-1-carboxylicacid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H14O4 |
| Molecular Weight | 198.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
Recommended Standards
- (1H-Naphtho[1,2-d]imidazol-2-yl)methanol (CAS 4248-59-3)
- (1S,3S)-3-((E)-2-Carboxyprop-1-en-1-yl)-2,2-dimethylcyclopropane-1-carboxylic acid (CAS 33383-55-0)
- (1E,2E)-3-phenyl-N-(4H-1,2,4-triazol-4-yl)prop-2-en-1-imine (CAS 35554-48-4)
- (2,4,6-Trimethoxyphenyl)methanol (CAS 61040-78-6)
- 1,6-Dimethyl-4-oxo-4,6,7,8-tetrahydro-1H-pyrido[1,2-a]pyrimidine-3-carboxamide (CAS 6626-91-1)
- N-(4-Ethyl-2-(ethylthio)-4-methyl-4H-imidazol-5-yl)hydroxylamine (CAS 330601-26-8)
- N-(4-(Benzo[d]thiazol-2-yl)phenyl)-6,7-dimethoxyquinazolin-4-amine (CAS 920519-42-2)
- 2-(Chloromethyl)-4-cyano-6-(difluoromethyl)-3-methoxypyridine (CAS 1805088-86-1)
- Omeprazole Impurity 36 (CAS CATO-C4X-125536)
- Prednisolone EP Impurity J (CAS 1807-14-3)
- 2-amino-3-(1H-imidazol-1-yl)benzamide (CAS 1545438-96-7)
- WWL 123 (CAS 1338574-83-6)
- (1S)-1-(4-hydroimidazo[1,2-a]pyridin-7-yl)ethylamine (CAS 1259837-48-3)
- Tirzepatide Impurity 51 (CAS CATO-C4X-324051)
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