Merck
CN
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1.01007

Millipore

L-Alanine

for biochemistry

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别名:
L-Alanine, 2-Aminopropionic acid, Ala
Empirical Formula (Hill Notation):
C3H7NO2
CAS号:
分子量:
89.09
EC索引号:
200-273-8

质量水平

形式

solid

pH值(酸碱度)

5.5-6.5 (20 °C, 100 g/L in H2O)

mp

295-297 °C (decomposition)

溶解性

166.5 g/L

密度

1.40 g/cm3 at 20 °C

堆积密度

660 kg/m3

储存温度

2-30°C

InChI

1S/C3H7NO2/c1-2(4)3(5)6/h2H,4H2,1H3,(H,5,6)

InChI key

QNAYBMKLOCPYGJ-UHFFFAOYSA-N

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W3818291250A7627
Millipore

Millipore

1.01007

L-Alanine

L-Alanine ≥99%

Sigma-Aldrich

W381829

L-丙氨酸

Millipore

Millipore

1250

L-Alanine

L-Alanine ≥98% (TLC)

Sigma-Aldrich

A7627

L-丙氨酸

mp

295-297 °C (decomposition)

mp

-

mp

-

mp

-

solubility

166.5 g/L

solubility

H2O: soluble 89.1 g/L at 20 °C (completely)

solubility

water: 5 mg/mL

solubility

H2O: 50 mg/mL, clear, colorless

storage temp.

2-30°C

storage temp.

-

storage temp.

15-25°C

storage temp.

-

Quality Level

100

Quality Level

-

Quality Level

100

Quality Level

-

pH

5.5-6.5 (20 °C, 100 g/L in H2O)

pH

-

pH

-

pH

-

一般描述

for biochemistry

应用

L-Alanine for biochemistry. CAS 56-41-7, pH 5.5 - 6.5 (100 g/l, H₂O, 20 °C).

分析说明

Assay (perchloric acid titration, calculated on dried substance)99.0 - 101.0 %Identity (IR-spectrum)passes testIdentity (specific rotation)passes testAppearancewhite to almost white crystalline powder or colorless crystalsAppearance of solution (25 g/l, water)clear and not more intense in color than reference solution BY₆Spec. rotation (α 20/D, 100 g/l, hydrochloric acid 250 g/l, calc. on dried substance)+13.5 to +15.5Chloride (Cl)≤ 200 ppmSulfate (SO₄)≤ 100 ppmAs (Arsenic)≤ 5 ppmCa (Calcium)≤ 50 ppmCo (Cobalt)≤ 5 ppmFe (Iron)≤ 5 ppmK (Potassium)≤ 5 ppmMg (Magnesium)≤ 5 ppmNa (Sodium)≤ 50 ppmPb (Lead)≤ 10 ppmZn (Zinc)≤ 5 ppmNinhydrin-positive substances (LC)(any ninhydrin-positive impurity)≤ 0.1 %Ninhydrin-positive substances (LC) (ammonium (570 nm))≤ 0.02 %Ninhydrin-positive substances (LC)(total impurities)≤ 0.5 %Loss on drying (105 °C; 3 h)
≤ 0.2 %≤ 0.2 %

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable


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