1.07769

L-Serine

for biochemistry

• Synonym(s): L-Serine, 3-Hydroxy-L-alanine, Ser
• Empirical Formula (Hill Notation): C₃H₇NO₃
• CAS Number: 56-45-1
• Molecular Weight: 105.09
• MDL number: MFCD00064224
• UNSPSC Code: 12352209
• EC Index Number: 200-274-3

Properties

• Quality Level: 100
• form: solid
• pH: 5-6 (20 °C, 100 g/L in H₂O)
• mp: 215-225 °C (decomposes)
• solubility: 360 g/L
• bulk density: 570 kg/m³
• storage temp.: 2-30°C
• InChI: 1S/C3H7NO3/c4-2(1-5)3(6)7/h2,5H,1,4H2,(H,6,7)
• InChI key: MTCFGRXMJLQNBG-UHFFFAOYSA-N

Description

Analysis Note

Assay (perchloric acid titration, calculated on dried substance): ≥ 99.0 %
Identity (IR-spectrum): passes test
Appearance: white to almost white or colorless, needle-shaped crystals
Appearance of solution (1 mol/l, water): clear and colorless
Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance): +14.3 to +15.8
UV-Absorption(260 nm; 1 mol/l; 1 cm; water): ≤ 0.05
UV-Absorption(280 nm; 1 mol/l; 1 cm; water): ≤ 0.02
Chloride (Cl): ≤ 0.02 %
Sulfate (SO₄): ≤ 0.01 %
Heavy metals (as Pb): ≤ 0.001 %
As (Arsenic): ≤ 0.0005 %
Ca (Calcium): ≤ 0.001 %
Co (Cobalt): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.0005 %
Mg (Magnesium): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
NH₄ (Ammonium): ≤ 0.01 %
Zn (Zinc): ≤ 0.0005 %
Foreign amino acids: ≤ 0.3 %
Other ninhydrine positive substances: ≤ 0.1 %
Loss on drying (105 °C; 3 h): ≤ 0.3 %

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable