Norastemizole Hydrobromide CAS 75970-64-8
| CAS No. | 75970-64-8 |
| Molecular Formula | C12H14O4 |
| Molecular Weight | 222.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Norastemizole Hydrobromide.
Norastemizole Hydrobromide (CAS 75970-64-8) is a high-purity analytical reference standard with the molecular formula C12H14O4 and a molecular weight of 222.24 g/mol.
Structurally, Norastemizole Hydrobromide (C12H14O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 222.24 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Norastemizole Hydrobromide 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 | C12H14O4 |
| Molecular Weight | 222.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
Recommended Standards
- N-Nitroso Iminostilbene (CAS 38652-29-8)
- N-tert-Butyl-4-nitro-benzamide (CAS 42498-30-6)
- N-isobutyl-3-nitrobenzamide (CAS 2448-05-7)
- Phenanthrene-2-carboxylic acid (CAS 40452-20-8)
- Ethyl 6-bromo-4-chloro-8-fluoroquinoline-3-carboxylate (CAS 1016691-47-6)
- Ethyl 2-(isopropylimino)-4-(trifluoromethyl)-2,3-dihydrothiazole-5-carboxylate (CAS 135026-49-2)
- (6-(Ethoxycarbonyl)pyridin-3-yl)boronic acid (CAS 2022984-53-6)
- 2-[[4-[[4-[(2,4-Diaminopteridin-6-ylMethyl-Methylamino]Benzoyl]Amino]-2-Fluoro-5-Hydroxy-5-Oxopentanoyl]Amino]Pentanedioic Acid (CAS 124716-15-0)
- 1-(2,5-Difluorophenyl)cyclobutanecarbonitrile (CAS 1260876-78-5)
- 2-(4-((4-amino-2-methylpyrimidin-5-yl)methyl)-3-methylthiophen-2-yl)ethan-1-ol (CAS CATO-C3D-262378)
- Levetiracetam Impurity 44 (CAS CATO-C4X-106744)
- 1-(Difluoromethoxy)-4-fluoro-2-nitrobenzene (CAS 1214349-53-7)
- (3R,4R,5S)-Tetrahydro-2H-pyran-2,3,4,5-tetraol (CAS 36562-42-2)
- Semaglutide impurity 47 (CAS CATO-C4X-222647)
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