Cefdinir Impurity 91 CAS 206855-74-5
Purity ≥95%In StockPharmacopoeial Impurity Standards
| CAS No. | 206855-74-5 |
| Molecular Formula | C24H23ClN2O7S |
| Molecular Weight | 518.97 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Cefdinir Impurity 91 (CAS 206855-74-5) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C24H23ClN2O7S. Molecular weight: 518.97 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C24H23ClN2O7S |
| Molecular Weight | 518.97 g/mol |
| Purity | ≥95% |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2016 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Cefdinir Standards
- Cefdinir Impurity 79 (CAS 116856-25-8)
- Cefdinir Impurity 80 (CAS 137054-66-1)
- Cefdinir Impurity 54 (CAS CATO-C4X-121054)
- Cefdinir Impurity25 (CAS 1637542-33-6)
- Cefdinir Impurity 67 (CAS CATO-C4X-121067)
- Cefdinir Impurity 68 (CAS CATO-C4X-121068)
- Cefdinir Impurity 69 (CAS CATO-C4X-121069)
- Cefdinir Impurity 88 (CAS CATO-C4X-121088)
Recommended Standards
- Methyl 5-((3-chlorophenyl)carbamoyl)-4-methyl-2-(3,4,5-trimethoxybenzamido)thiophene-3-carboxylate (CAS 335406-29-6)
- (3aR,4R,5R,6aS)-4-((R,E)-4-(3-Chlorophenoxy)-3-hydroxybut-1-en-1-yl)-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl [1,1'-biphenyl]-4-carboxylate (CAS 54713-44-9)
- 2-thiophen-2-yl-5-[5-[5-(5-thiophen-2-ylthiophen-2-yl)thiophen-2-yl]thiophen-2-yl]thiophene 88493-55-4 (CAS 88493-55-4)
- Desloratadine Impurity 72 (CAS CATO-C4X-142672)
- Posaconazole Impurity 171 (CAS CATO-C4X-1208171)
- 3-(2-Methylbenzyl)azetidine (CAS 887594-88-9)
- D-threo-1-(4-Aminophenyl)-2-dichloroacetylamino-1,3-propanediol Hydrochloride (CAS 57704-36-6)
- 4,5-Dichloro-1,8-naphthalic Anhydride (CAS 7267-14-3)
- (4-Aminopiperidin-1-yl)(3-hydroxyphenyl)methanone (CAS 926250-49-9)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
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 13829788188 / jacky.chen@cato-chem.com