Environmentally Preferable:

Solubility (Colour):
Colourless
Solubility (Turbidity)-0,5 g to 10 ml, H₂O:
Clear
Identity by IR:
Conforms to Structure
Specific Rotation C = 11, 6 M HCl, 20 °C/EP:
12,0 – 12,8
Specific Rotation C = 11, 6 M HCl, 25 °C/USP:
12,6 – 14,0
Chloride (Cl):
≤ 0,020%
Ammonium:
≤ 0,02 %
Sulfate:
≤ 0,020%
Iron (Fe) :
≤ 10 ppm
Heavy Metals:
≤ 10 ppm
Arsenic (As):
≤ 1 ppm
Loss on Drying:
0,20%
Residue on ignition (Ash):
0,10%
Ninhydrin-Positive Substances other amino acids:
Conforms
pH 2% in H₂O:
7,0 – 8,5
Assay (Dry Basis):
98,5 – 101,0%

Frequently Bought Together

Water, HiPerSolv CHROMANORM® for HPLC

: VWR Chemicals

Methanol ≥99.8%, HiPerSolv CHROMANORM® Reag. Ph. Eur., gradient grade for HPLC

: VWR Chemicals

Acetone ≥99%, TECHNICAL

: VWR Chemicals

Petroleum spirit, 40…60 °C, AnalaR NORMAPUR® ACS analytical reagent (max. 0.01% aromatic hydrocarbons)

: VWR Chemicals

VWR®, Transfer Pipettes, High Performance

: VWR Collection

Acetonitrile, anhydrous (max. 0.003% H₂O) ≥99.95%, HiPerSolv CHROMANORM® Reag. USP, Reag. Ph. Eur., ACS, super gradient grade suitable for UPLC/UHPLC instruments

: VWR Chemicals

Acetonitrile ≥99.9%, HiPerSolv CHROMANORM®, gradient grade for HPLC

: VWR Chemicals

Methanol ≥99.8%, AnalaR NORMAPUR® Reag. Ph. Eur., ACS analytical reagent

: VWR Chemicals

Ethanol absolute ≥99.8%, AnalaR NORMAPUR® ACS, Reag. Ph. Eur. analytical reagent

: VWR Chemicals

Water, HiPerSolv CHROMANORM® for LC-MS, suitable for UPLC/UHPLC instruments

: VWR Chemicals

Round-bottom polystyrene tubes, disposable, Falcon®

: Corning

VWR® Serological Pipette, Standard Line

: VWR Collection

Acetonitrile ≥99.9%, HiPerSolv CHROMANORM® for LC-MS, suitable for UPLC/UHPLC instruments

: VWR Chemicals

Vitamin B12 (cyanocobalamin), Sigma-Aldrich®

: Merck