Density :0.878 g/mL at 25 °C
Flash point :−40 °F
solubility :sol ether, THF.
form :liquid
Sensitive :Air & Moisture Sensitive
BRN :4124474
InChI :InChI=1S/C5H9.ClH.Mg/c1-2-4-5-3-1;;/h1H,2-5H2;1H;/q;;+1/p-1
InChIKey :GROGEABZCKQTJW-UHFFFAOYSA-M
SMILES :[Mg](C1CCCC1)Cl

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501 H261 In contact with water releases flammable gas Substances And Mixtures Which, In Contact With Water,Emit Flammable Gases Category 2 Category 3 Danger Warning P231+P232, P280, P370+P378,P402+P404, P501 H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501 H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310 H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P231+P232 Handle under inert gas. Protect from moisture. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405 Store locked up. P422 Store contents under …