Atazanavir Sulfate EP Impurity B CAS 127406-56-8
| CAS No. | 127406-56-8 |
| Molecular Formula | C12H9NO |
| Molecular Weight | 183.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Atazanavir Sulfate EP Impurity B 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.
Atazanavir Sulfate EP Impurity B (CAS 127406-56-8) is a certified pharmaceutical impurity reference standard with the molecular formula C12H9NO and a molecular weight of 183.21 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Atazanavir Sulfate EP Impurity B is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 183.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C12H9NO |
| Molecular Weight | 183.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 1 |
Related Atazanavir Standards
- Atazanavir Impurity 39 (CAS 1191091-65-2)
- Atazanavir EP Impurity K (CAS 162537-11-3)
- Atazanavir Sulfate EP Impurity A (CAS 4385-62-0)
- Atazanavir Impurity N1 (Relative stereochemistry) (CAS 98818-34-9)
- Atazanavir Impurity 10 (CAS 98737-29-2)
- Atazanavir Impurity 11 (CAS 156474-22-5)
- Atazanavir Impurity 13 (CAS 98760-08-8)
- Atazanavir impurity 19 (CAS 156474-21-4)
Recommended Standards
- Nifedipine Impurity 34 (CAS 89088-71-1)
- Carvedilol impurity 15 (CAS 52602-39-8)
- Olaparib Impurity 150 (CAS CATO-C4X-1135150)
- Doxylamine EP Impurity D (CAS 91-02-1)
- Meloxicam Impurity 10 (CAS CATO-C4X-169010)
- Tofacitinib Impurity 212 (CAS CATO-C4X-1079212)
- Phenylephrine Hydrochloride EP Impurity C (CAS 52093-42-2(free base))
- 2-Bromo-3-(difluoromethyl)-6-fluoropyridine-4-sulfonamide (CAS 1806065-49-5)
- Linagliptin Impurity 53 (CAS 188111-79-7)
- 4-(4-Methoxyphenyl)-5-phenylthiazol-2-amine (CAS 91069-96-4)
- 2-(furan-2-yl)acetic acid (CAS 2745-26-8)
- 2,4,6-Tribromoanisole-d5 (CAS 1219795-33-1)
- N-(6-Aminohexyl)-2-((9-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-9H-purin-6-yl)amino)acetamide (CAS 88123-03-9)
- Semaglutide Impurity 6 (CAS 62-57-7)
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