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LC2987 L-Histidine

for biochemistry

 

Order number Packaging Quantity Price €
AC29987 Glass bottle 25 g 20.25
AC29987 Glass bottle 100 g 55.35
AC29987 Glass bottle 1 kg 441.90
AC29987 Plastic drum 10 kg inquire

 

Product information
Hill Formula C6H9N3O2
HS Code 2933 29 90
EC number 200-745-3
Molar mass 155.16 g/mol
CAS number 71-00-1

 

Chemical and physical data
Solubility 38.2 g/l (20 °C)
Melting point 272 – 273 °C (decomposition)
Molar mass 155.16 g/mol
Bulk density 430 kg/m3
pH value 7.7 (10 g/l, H2O, 20 °C)

 

Safety information
RTECS MS3070000
Storage class 10 – 13 Other liquids and solids
WGK NWG not water endangering

 

Toxicological data
LD 50 oral LD50 rat > 5110 mg/kg

 

Specifications
Assay (acidimetric, calculated on dried substance) ≥ 99.0 %
Identity (IR-spectrum) passes test
Appearance white to almost white, fine-crystalline powder or colorless crystals
Appearance of solution (0.5 mol/l, hydrochloric acid 1 mol/l) Clear and colorless.
Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance) +10.5° to +11.5°
UV-Absorption
– 260 nm, 0.5 mol/l, 1 cm, hydrochloric acid 1 mol/l
≤ 0.10
– 280 nm, 0.5 mol/l, 1 cm, hydrochloric acid 1 mol/l ≤ 0.10
Chloride (Cl) ≤ 0.02 %
Sulfate (SO4) ≤ 0.01 %
Sulfate (SO4) ≤ 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 %

 

L-Histidine, Laboratory chemicals, Laboratory Chemicals manufacturer, Laboratory chemicals india, Laboratory Chemicals directory, elabmart

 

Loss on drying (105 °C; 3 h)