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Good Quality (S)-Flurbiprofen丨CAS 51543-39-6
(S)-Flurbiprofen (CAS 51543-39-6) is the optically active S-enantiomer of flurbiprofen, a nonsteroidal anti-inflammatory compound. It is widely used as a pharmaceutical intermediate and reference standard in medicinal chemistry, offering high stereochemical purity for the development and analysis of chiral drug substances.
Manufacturing Experience: Since 2022
Capability: 50kg/month
Specifications
| Appearance | White or off-white powder |
| Assay (Calculated by Dry Product, C15H13FO2) | 98.0%–102.0% |
| Solubility | Easily soluble in methanol, anhydrous ethanol, and acetone; insoluble in water |
| Chemical Identification | Take about 1 ml of chromium trichloride saturated sulfuric acid solution and place it in a small test tube. Rotate the tube so the solution evenly coats the wall. Add about 2 mg of this product and heat gently. After rotating the tube again, the solution should no longer coat the wall evenly, and a similar oil layer should be visible on the tube wall. |
| Identification by UV | Maximum absorption at 247 ± 2 nm |
| Identification by HPLC | The retention time of the principal peak in the test solution corresponds to that of the reference solution |
| Chloride | ≤0.015% |
| Related Substances - Impurity A | ≤0.5% |
| Related Substances - Esflurbiprofen Impurity A | ≤0.10% |
| Related Substances - Any Other Single Impurity | ≤0.10% |
| Related Substances - Total Impurities | ≤0.7% |
| Enantiomer (R-Flurbiprofen) | ≤0.15% |
| Residual Solvents - Methanol | ≤0.3% |
| Residual Solvents - Ethanol | ≤0.5% |
| Residual Solvents - Isopropyl Alcohol | ≤0.5% |
| Residual Solvents - Ethyl Acetate | ≤0.5% |
| Residual Solvents - Acetic Acid | ≤0.5% |
| Residual Solvents - S-1-Phenylethylamine | ≤0.1% |
| Loss on Drying | ≤0.5% |
| Residue on Ignition | ≤0.1% |
| Heavy Metals | ≤10 ppm |
| Microbial Limit - Total Plate Count of Aerobic Bacteria | ≤1000 CFU/g |
| Microbial Limit - Total Plate Count of Yeast & Mold | ≤100 CFU/g |
| Microbial Limit - Staphylococcus aureus | Non-detectable per 1 g |
| Microbial Limit - Pseudomonas aeruginosa | Non-detectable per 1 g |
Chemical Identifiers
| InChI | InChI=1S/C15H13FO2/c1-10(15(17)18)12-7-8-13(14(16)9-12)11-5-3-2-4-6-11/h2-10H,1H3,(H,17,18)/t10-/m0/s1 |
| InChI Key | SYTBZMRGLBWNTM-JTQLQIEISA-N |
| Smiles | C[C@@H](C1=CC(=C(C=C1)C2=CC=CC=C2)F)C(=O)O |
| EC No. | 257-263-1 |
| MDL No. | MFCD00866152 |
| PubChem CID | 72099 |
Applications
Pharmaceutical Industry
Drug Discovery & Medicinal Chemistry
Analytical & Quality Control
Serves as a reference standard for method development, impurity profiling, and quality control of pharmaceutical products.
Research & Laboratory Applications
