L-Isoleucine | 73-32-5 : kuv
Khoom Description
Isoleucine (abbreviated li Ile los yog I) yog α-amino acid nrog cov tshuaj formula HO2CCH(NH2)CH(CH3)CH2CH3. Nws yog ib qho tseem ceeb amino acid, uas txhais tau hais tias tib neeg tsis tuaj yeem tsim nws, yog li nws yuav tsum tau noj. Nws cov codons yog AUU, AUC thiab AUA.Nrog ib tug hydrocarbon sab saw, isoleucine yog cais raws li hydrophobic amino acid. Ua ke nrog threonine, isoleucine yog ib qho ntawm ob hom amino acids uas muaj chiral sab saw. Plaub stereoisomers ntawm isoleucine tuaj yeem ua tau, suav nrog ob qhov ua tau diastereomers ntawm L-isoleucine. Txawm li cas los xij, isoleucine tam sim no muaj nyob rau hauv ib daim ntawv enantiomeric, (2S, 3S)-2-amino-3-methylpentanoic acid.
Specification
| Yam khoom | STANDARD |
| Qhov tshwm sim | Dawb crystalline hmoov los yog crystalline hmoov |
| Kev sib hloov tshwj xeeb | +38.6-41.5 |
| PH | 5.5-7.0 Nws |
| Poob rau ziab | = <0.3% |
| Cov hlau hnyav (Pb) | = <20ppm |
| Cov ntsiab lus | 98.5 ~ 101.0% |
| Hlau (Fe) | = <20ppm |
| Arsenic (As2O3) | = <1 ppm |
| Coj | = <10ppm |
| Lwm yam Amino Acids | Chromatographically tsis ntes tau |
| Residue ntawm ignition (Sulfated) | =<0.2% |
| Organic Volatile impurities | Ua tau raws li cov cai ntawm pharmacopoeis |
