2-(Quinuclidin-3-ylidene)acetic acid CAS 5660-46-8
| CAS No. | 5660-46-8 |
| Molecular Formula | C9H13NO2 |
| Molecular Weight | 167.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 167.21 g/mol gives 2-(Quinuclidin-3-ylidene)acetic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(Quinuclidin-3-ylidene)acetic acid (CAS 5660-46-8), molecular formula C9H13NO2 and molecular weight 167.21 g/mol, is a CATO reference standard with documented purity and traceability.
2-(Quinuclidin-3-ylidene)acetic acid (C9H13NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), 2-(Quinuclidin-3-ylidene)acetic acid 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 | C9H13NO2 |
| Molecular Weight | 167.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related Quinuclidin Standards
- 1-(Quinuclidin-2-yl)ethanone (CAS 106824-75-3)
- 1-(Quinuclidin-4-yl)ethanone (CAS 18955-80-1)
- Methyl 2-(quinuclidin-3-yl)acetate (CAS 99189-46-5)
- 2-(Quinuclidin-3-yl)acetonitrile (CAS 51526-86-4)
- 2-(Quinuclidin-4-yl)acetonitrile (CAS 75208-52-5)
- (S)-quinuclidin-3-ylmethanol (CAS 88644-21-7)
- Quinuclidin-2-ylmethanol (CAS 27783-89-7)
- 3-Methyl-5-(quinuclidin-3-yl)-1,2,4-oxadiazole (CAS 114724-64-0)
Recommended Standards
- 2-(Piperidin-1-yl)-1H-imidazol-4(5H)-one (CAS 291519-21-6)
- 2-(tert-Butyl)-4-ethylideneoxazol-5(4H)-one (CAS 538339-50-3)
- 2-(Dimethylamino)-4,6-dimethylpyrimidin-5-ol (CAS 345642-90-2)
- 2,3-Diethoxypyridine (CAS 63756-60-5)
- 4,6-Dichlorocinnoline, 97% (CAS 68211-13-2)
- (E)-2-methyl-2-(prop-1-en-1-yl)-1,3-dioxolane (CAS 52100-68-2)
- 1-(2-Chloro-4-fluorobenzyl)-1,2-dihydro-3h-1,2,4-triazol-3-imine (CAS 832741-20-5)
- Fulvestrant EP Impurity C (CAS CATO-C4X-19173)
- 2-Amino-N-(1-(3-chlorophenyl)ethyl)-N-cyclopropylacetamide (CAS 1353952-45-0)
- 2-Chloro-4-fluoro-N-(2,2,2-trifluoroethyl)aniline (CAS 1038369-35-5)
- 2-Chloro-3-methoxyphenylboronic Acid (CAS 854778-30-6)
- Ethyl 4-(((tert-butyl)amino)thioxomethyl)piperazinecarboxylate (CAS 497060-82-9)
- 1-Cyclopropyl-N-(3,4-dimethoxybenzyl)methanamine (CAS 1019560-99-6)
- Vialox Peptide(Pentapeptide-3) (CAS 135679-88-8)
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