L-HISTIDINE MONOHYDROCHLORIDE (FOR BIOCHEMISTRY)

Article No.	Grade	Purity	Cas no.	Molecular Formula	Molecular Weight	H.S. Code	Shelf Life
H0107701000	For Biochemistry	99%	5934-29-2	C₆H₁₀ClN₃O_2.H₂O	209.63	2933.2990	60 Months

Physical Properties

Physical state at 20 °C

Solid

Colour

White crystalline

pH value

3 - 4 at 105 g/l at 25 °C

Melting Point/ Freezing point [°C]

254 °C

Solubility in water [% weight]

105 g/l at 20 °C - completely soluble

Appearance:	White crystalline powder
Heavy metal (as Pb):	Max 0.001%
Ammonium (NH4):	Max 0.01%
Foreign amino acids:	Max 0.3%
Other ninhydrin positive substances (as glycine):	Max 0.1%
Assay (argentometric; on anhydrous basis):	Min 99%
Specific optical rotation ([α]20/D):	+8.5 to +9.5 deg