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Merck

1.01007

L-Alanine

for biochemistry

Synonym(s):

L-Alanine, 2-Aminopropionic acid, Ala

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About This Item

Empirical Formula (Hill Notation):
C3H7NO2
CAS Number:
56-41-7
Molecular Weight:
89.09
MDL number:
MFCD00166369
UNSPSC Code:
12352209
EC Index Number:
200-273-8
NACRES:
NA.21

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SMILES string

[N+H3]C(C)C(=O)[O-]

InChI

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

InChI key

QNAYBMKLOCPYGJ-UHFFFAOYSA-N

form

solid

pH

5.5-6.5 (20 °C, 100 g/L in H2O)

mp

295-297 °C (decomposition)

solubility

166.5 g/L

density

1.40 g/cm3 at 20 °C

bulk density

660 kg/m3

storage temp.

2-30°C

Quality Level

100

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General description

for biochemistry

Application

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

Analysis Note

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 %

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

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Global Trade Item Number

SKUGTIN
1.01007.901004022536692388
1.01007.100004022536014296
1.01007.010004022536014289
1.01007.002504022536014272

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