61819

Sigma-Aldrich

L-亮氨酸

BioUltra, ≥99.5% (NT)

别名:
(S)-2-氨基-4-甲基戊酸
线性分子式:
(CH3)2CHCH2CH(NH2)CO2H
CAS号:
分子量:
131.17
Beilstein/REAXYS Number:
1721722
EC 号:
MDL编号:
eCl@ss:
32160406
PubChem化学物质编号:
NACRES:
NA.26

产品线

BioUltra

质量水平

200

测定

≥99.5% (NT)

形式

powder or crystals

旋光性

[α]20/D +15.5±0.5°, c = 5% in 5 M HCl

应用

NMR: suitable

杂质

insoluble matter, passes filter test
≤0.3% foreign amino acids

灼烧残渣

≤0.1%

缺失

≤0.1% loss on drying, 20 °C (HV)

颜色

white

mp

>300 °C (lit.)

溶解性

1 M HCl: 0.1 M at 20 °C, clear, colorless

痕量阴离子

chloride (Cl-): ≤200 mg/kg
sulfate (SO42-): ≤100 mg/kg

痕量阳离子

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
NH4+: ≤100 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

0.1 M in 1 M HCl

紫外吸收

λ: 260 nm Amax: 0.05
λ: 280 nm Amax: 0.05

SMILES string

CC(C)C[C@H](N)C(O)=O

InChI

1S/C6H13NO2/c1-4(2)3-5(7)6(8)9/h4-5H,3,7H2,1-2H3,(H,8,9)/t5-/m0/s1

InChI key

ROHFNLRQFUQHCH-YFKPBYRVSA-N

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相关类别

其他说明

作为血清蛋白的等速电泳中的间隔物;满足各种微生物的生长要求

storage_class_code

13 - Non Combustible Solids

WGK Germany

WGK 1

闪点(F)

Not applicable

闪点(C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

分析证书

原产地证书 (CofO)

T. Hine
Electrophoresis ?83, 541-541 null
CRC Handbook of Microbiology, 4, 1-1 (1974)
T. Yagi et al. et al.
Electrophoresis ?83, 503-503 (1984)
Youwen Qiu et al.
Journal of agricultural and food chemistry, 67(32), 8884-8895 (2019-07-28)
Leucine is an essential amino acid in the milk production of bovine mammary glands, but the regulatory roles and molecular mechanisms of leucine are still not known well. This study investigated the roles of leucine on milk synthesis and explored...
William I A Haynes et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 33(11), 4804-4814 (2013-03-15)
The identification of a hyperdirect cortico-subthalamic nucleus connection highlighted the important role of the subthalamic nucleus (STN) in regulating behavior. However, this pathway was shown primarily from motor areas. Hyperdirect pathways associated with cognitive and motivational cortical regions are particularly...

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