Lopinavir EP Impurity R CAS 943250-66-6
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 943250-66-6 |
| Molecular Formula | C47H58N4O7 |
| Molecular Weight | 790.99 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Lopinavir EP Impurity R (CAS 943250-66-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C47H58N4O7. Molecular weight: 790.99 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C47H58N4O7 |
| Molecular Weight | 790.99 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
Related Lopinavir Standards
- Lopinavir EP Impurity S (CAS 943250-65-5)
- Lopinavir EP Impurity O (CAS CATO-C4X-168215)
- Lopinavir Impurity 2 (CAS CATO-C4X-168222)
- Lopinavir EP Impurity D (CAS CATO-C4X-16824)
- Lopinavir EP Impurity T (CAS 1797024-56-6)
- Lopinavir Impurity 3 (CAS CATO-C4X-168221)
- Lopinavir EP Impurity C (CAS CATO-C4X-168229)
- Lopinavir Metabolite M-3/M-4 (CAS 221553-72-6)
Recommended Standards
- 661472-41-9 BIW199E18V Relamorelin [USAN:INN] UNII-BIW199E18V BIM28131 BIM-28131 Relamorelin 4-Piperidinecarboxamide, 3-benzo(b)thien-3-yl-N-(4-piperidinylcarbonyl)-D-alanyl-D-tryptophyl-L-phenylalanyl-4-amino- Relamorelin [INN] Relamorelin [WHO-DD] RM 131 RM131 RM-131 (CAS 661472-41-9)
- DPP48-CHO-B (CAS 2412648-26-9)
- Gadobutrol Impurity 35 (CAS 52667-88-6)
- Cefoxitin EP Impurity H (CAS 37051-05-1)
- Bexarotene Impurity 4 (CAS 29641-87-0)
- Cepharadione A (CAS 55610-01-0)
- 4-(2-Amino-1-((4-isopropylphenyl)sulfonyl)ethyl)-N,N-dimethylaniline (CAS 1266695-30-0)
- 4-Chloro-N-((3,5-dimethylisoxazol-4-yl)methyl)aniline (CAS 303985-31-1)
- 2,2-Dimethyl-3-[3-(trifluoromethyl)phenyl]propan-1-amine hydrochloride (CAS 1439896-35-1)
- Endo-Ala35-Tirzepatide (CAS CATO-CPTD788687)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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