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L-Histidine monohydrochloride monohydrate

Original price was: 4,200.00৳ .Current price is: 4,000.00৳ .

Model: 1.04350.0100
Brand: Millipore
Origin: Germany
Formula: C6H9N3O2 · HCl · H2O
Cas: 5934-29-2
Pack Size: 100gm

Assay (calculated on dried substance)	99.0 – 101.0 %
Identity (IR-spectrum)	passes test
Identity (wet chemistry)	passes test
Appearance	white to almost white crystalline powder or colorless crystals
Appearance of solution (50 g/l CO₂-free water)	clear and not more intense in color than reference solution BY₆
Spec. rotation (α 20/D, 110 g/l, hydrochloric acid 120 g/l, calc. on dried substance)	+9.2 to +10.6
Sulfate (SO₄)	≤ 200 ppm
Heavy metals (as Pb)	≤ 10 ppm
As (Arsenic)	≤ 5 ppm
Ca (Calcium)	≤ 10 ppm
Co (Cobalt)	≤ 5 ppm
Fe (Iron)	≤ 5 ppm
K (Potassium)	≤ 5 ppm
Mg (Magnesium)	≤ 5 ppm
Na (Sodium)	≤ 50 ppm
Zn (Zinc)	≤ 5 ppm
Ninhydrin-positive substances (LC) (any ninhydrin-positive impurity)	≤ 0.2 %
Ninhydrin-positive substances (LC) (ammonium (570 nm))	≤ 0.02 %
Ninhydrin-positive substances (LC) (total impurities)	≤ 0.5 %
Loss on drying (150 °C)	7.0 – 10.0 %