All Photos(1)
Synonym(s):
L-Alanine, 2-Aminopropionic acid, Ala
Empirical Formula (Hill Notation):
C3H7NO2
Recommended Products
Quality Level
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
InChI
1S/C3H7NO2/c1-2(4)3(5)6/h2H,4H2,1H3,(H,5,6)
InChI key
QNAYBMKLOCPYGJ-UHFFFAOYSA-N
Related Categories
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 %
≤ 0.2 %≤ 0.2 %
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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