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Technical Data Sheet Cefdinir
Compound Information
Product Name:
Cefdinir
CAS No.:
91832-40-5
Molecular Formula:
C14H13N5O5S2
Molecular Weight:
395.41
Storage:
Store at 2 -8 °C
Revision Date:
2026-04-15
Analytical Information
| Tests | Specifications |
|---|---|
| Appearance | White or yellowish crystalline powder |
| Solubility | dilute HCl: slightly soluble |
| Heavy Metals | ≤10 ppm |
| Water Content (Karl Fisher) | ≤ 2% |
| pH | 2.5 -4.5 |
| Specific Rotation | [a]D20= -58 to -66 ° |
| UV | Specific absorbance : 570 -610 nm |
| Residual Solvents | Tetrahydrofuran : ≤ 0.072%, Methylene chloride : ≤ 0.06%, Triethylamine : ≤ 0.032%, Acetic acid : ≤ 0.5%, Ethanol : ≤ 0.5% |
| Related Substances | Impurity A, E, F, P, Q, R, S, T, U : ≤ 0.5%, Impurity B, C, D, O : ≤ 0.2%, Impurities G and H : ≤ 0.07%, Impurities I+J+K+L : ≤ 0.07%, Impurities M+N : ≤ 0.07%, Any individual impurity : ≤ 0.2%, Total impurities : ≤ 2.5% |
| Residue On Ignition | ≤ 2% |
| Assay (anhydrous basis) | ≥94% |
| NMR | Pass test |
| IR | Pass test |
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