Methyl Salicylate EP Impurity I CAS 23287-26-5
| CAS No. | 23287-26-5 |
| Molecular Formula | C9H10O3 |
| Molecular Weight | 166.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Methyl Salicylate EP Impurity I (CAS 23287-26-5) is a certified pharmaceutical impurity reference standard with the molecular formula C9H10O3 and a molecular weight of 166.17 g/mol.
Structurally, Methyl Salicylate EP Impurity I (C9H10O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 166.17 g/mol, it falls into the medium-molecular-weight range. 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).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Methyl Salicylate EP Impurity I under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H10O3 |
| Molecular Weight | 166.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Methyl Standards
- Methyl Salicylate EP Impurity K (CAS 4670-56-8)
- Methyl Salicylate EP Impurity J (CAS 22717-57-3)
- Methyl Salicylate EP Impurity L (CAS 33528-09-5)
- Methyl Salicylate EP Impurity D (CAS 121-98-2)
- Ethyl Salicylate (CAS 118-61-6)
- Methyl Salicylate (CAS 119-36-8)
- Phenyl Salicylate (CAS 118-55-8)
- Calcium salicylate (CAS 824-35-1)
Recommended Standards
- Bisoprolol Impurity 96 (CAS CATO-C4X-124796)
- Bisoprolol Impurity 95 (CAS CATO-C4X-124795)
- Dextromethorphan Impurity 20 (CAS 18584-20-8)
- Atropine Impurity 17 (CAS 16202-15-6)
- Naproxen Impurity 42 (CAS CATO-C4X-170842)
- Atogepant Impurity 12 (CAS CATO-C4X-328512)
- Cefadroxil EP Impurity G（Cefradine EP Impurity F/Cefalexin EP Impurity D） (CAS 34876-35-2)
- n-{[3-(benzyloxy)-4-methoxyphenyl]methylidene}hydroxylamine (CAS 55667-17-9)
- Methyl (2S)-2-{[(tert-butoxy)carbonyl]amino}-3-(thiophen-2-yl)propanoate (CAS 195510-15-7)
- 4-(Trifluoromethyl)-1H-indole-2-carboxylic acid (CAS 317-59-9)
- 3-(2-Fluorophenyl)-1-methyl-1H-pyrazol-5-amine (CAS 1012879-56-9)
- (1-Methyl-5-phenoxy-3-(trifluoromethyl)-1H-pyrazol-4-yl)methanamine (CAS 956181-65-0)
- 4,6-Dichloro-2-cyclopropyl-5-ethylpyrimidine (CAS 617716-32-2)
- Des-Ala21-Tirzepatide (CAS CATO-CPTD788952)
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