Cimetidine Impurity 7 CAS 24771-25-3
| CAS No. | 24771-25-3 |
| Molecular Formula | C4H6N2O2 |
| Molecular Weight | 114.10 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.
Cimetidine Impurity 7 (CAS 24771-25-3), molecular formula C4H6N2O2 and molecular weight 114.10 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Cimetidine Impurity 7 is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 114.10 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C4H6N2O2 |
| Molecular Weight | 114.10 g/mol |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 2 |
Related Cimetidine Standards
- Cimetidine Impurity 4 (CAS 1609-06-9)
- Cimetidine EP Impurity I (CAS 29636-87-1)
- Cimetidine EP Impurity G (CAS 31857-31-5)
- Cimetidine impurity 28 (CAS 95010-84-7)
- Cimetidine Impurity 3 (CAS 10191-60-3)
- Cimetidine Impurity 7 (CAS 6542-88-7)
- Cimetidine EP Impurity J (CAS 38585-67-0)
- Cimetidine EP Impurity D (CAS 70172-53-1)
Recommended Standards
- 4-Oxopent-2-Enoic Acid (CAS 4743-82-2)
- Dihydro-2H-pyran-2,4(3H)-dione (CAS 33532-46-6)
- 6-Hydroxy-2H-pyran-3(6H)-one (CAS 35436-57-8)
- Fumaramide (CAS 627-64-5)
- 1,1,3,3-Tetramethylguanidine acetate (CAS 16836-76-3)
- 2-Bromo-5-((tetrahydro-2H-pyran-4-yl)methyl)pyridine (CAS 2306263-55-6)
- 2-((Difluoromethyl)thio)-1h-benzo[d]imidazol-6-amine (CAS 1249457-19-9)
- 3-Phenyl-N-(4-sulfamoylphenyl)propanamide (CAS 313382-31-9)
- 5-(2-Chloroethyl)-1H-benzo[d]imidazole (CAS 14984-14-6)
- (2Z)-2-(3,4-Dimethoxybenzylidene)-6-hydroxy-1-benzofuran-3(2H)-one (CAS 1322574-14-0)
- (3-Boc-amino-azetidin-1-yl)-thiophen-2-yl-acetic acid (CAS 885275-99-0)
- 6-(trifluoromethoxy)-2,3-dihydro-1H-inden-1-ol (CAS 1215279-95-0)
- 3-Bromo-6-methyl-2-nitropyridine (CAS 1379359-54-2)
- D-[Arg]30-Semaglutide (CAS CATO-C4X-222653)
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