L-Proline
L-Proline CAS: 147-85-3
Sifat Kimia L-Proline
MF: C5H9NO2
MW: 115.13
EINECS: 205-702-2
Titik lebur: 228 ° C (dec.) (Lit.)
alpha: -85.5 º (c = 4, H2O)
Titik didih: 215.41 ° C (anggaran kasar)
Ketumpatan: 1.35
Indeks biasan: -85 ° (c = 4, h2o)
Keterlarutanh2o: 50 mg / ml
Pka: 1.95, 10.64 (pada 25â „ƒ)
Ph: 6.0-7.0 (25â „ƒ, 1m dalam h2o)
Aktiviti optik: [Î ±] 20 / D 85.0 ± 1.0 °, c = 5% dalam H2O
Kelarutan Air: larut
L-Proline CAS: 147-85-3 Specification:
L-Proline |
AJI92 |
Indeks Eropah |
Gred pertama |
Indeks USA |
Assay |
99.0-101.0% |
98.5-101.0% |
â ¥ 99.0% |
98.5-101.5% |
PH |
5.9-6.9 |
/ |
5.9-6.9 |
/ |
Putaran khusus [a] D20 |
-84.5 ° --86.0 ° |
-84.0 ° --86.0 ° |
-84.5 ° --86.0 ° |
/ |
Putaran khusus [a] D25 |
/ |
/ |
/ |
-84.3 ° --86.3 ° |
Penghantaran (T430) |
â ¥ .0 98.0% |
jelas & tidak berwarna |
â ¥ .0 98.0% |
/ |
Klorida (Cl) |
â ‰0.02% |
â ‰0.02% |
â ‰0.02% |
â ‰0.05% |
Amonium (NH4) |
â ‰0.02% |
â ‰0.02% |
â ‰0.02% |
|
Sulfat (SO4) |
â ‰0.02% |
â ‰0.03% |
â ‰0.02% |
â ‰0.03% |
Besi (Fe) |
â ‰ ¤10PPM |
â ‰ ¤10PPM |
â ‰ ¤10PPM |
/ |
Logam berat (Pb) |
â ‰ ¤10PPM |
â ‰ ¤10PPM |
â ‰ ¤10PPM |
â ‰ ¤15PPM |
Arsenik |
â ‰ ¤1PPM |
/ |
â ‰ ¤1PPM |
|
Asid amino lain |
kekotoran individu ‰ .50.5% jumlah kekotoran ‰ .02.0% |
kekotoran individu ‰ .200.20% jumlah kekotoran ‰ .50.5% |
â ‰0.5% |
kekotoran individu ‰ .50.5% jumlah kekotoran ‰ .02.0% |
Bahan positif Ninhydrin |
/ |
menepati |
/ |
|
Kerugian semasa pengeringan |
â ‰ .0.30% |
â ‰ .0.50% |
â ‰ .0.30% |
â ‰ .40.4% |
Sisa pada pencucuhan |
â ‰0.10% |
â ‰0.10% |
â ‰0.10% |
â ‰ .40.4% |
Kekotoran tidak menentu organik |
/ |
/ |
/ |
/ |
Endotoksin |
/ |
/ |
<10EU / g |
/ |