Melting point :243-244 °C(Solv: ethanol (64-17-5))
Density :1.472[at 20℃]
vapor pressure :0Pa at 20℃
storage temp. :Inert atmosphere,2-8°C
form :Crystalline
Water Solubility :149.55g/L at 20℃
BRN :4168261
InChI :InChI=1/C6H9N3O2.ClH/c7-5(6(10)11)1-4-2-8-3-9-4;/h2-3,5H,1,7H2,(H,8,9)(H,10,11);1H/t5-;/s3
InChIKey :QZNNVYOVQUKYSC-USHJBNIQNA-N
SMILES :C(O)(=O)[C@H](CC1N=CNC=1)N.[H]Cl |&1:3,r|
LogP :-3.32 at 25℃
CAS DataBase Reference :645-35-2(CAS DataBase Reference)
EPA Substance Registry System :L-Histidine, monohydrochloride (645-35-2)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.