L-Isoleucine Molecular Formula: C6H13NO2 Molecular Weight: 131.17 CAS No： 73-32-5 L-Isoleucine CP2020 EP11 USP2023 USP24 FCC11 Assay ≥98.5% 98.5-101.0% 98.5-101.5% 98.5-101.5% 98.5～101.5% PH 5.5-6.5 / 5.5-7.0 5.5-7.0 5.5-7.0 Specific rotation[a]D20 +38.9°-+41.8° +40.0-+43.0 / / +38.6～+41.5° Specific rotation[a]D25 / / +38.9°-+41.8°...