Melting point :258-260 °C(lit.)
alpha :158 º (c=1, dioxane)
Boiling point :353.48°C (rough estimate)
Density :1.2360
refractive index :165 ° (C=1, Dioxane)
Flash point :9℃
storage temp. :room temp
solubility :Chloroform (Slightly), Dioxane (Slightly), Ethanol (Slightly), Methanol (Slightly)
pka :pKa 10.77±0.02(H2O)(Approximate)
form :Crystalline Powder or Crystals
color :White to almost white
Water Solubility :0.03 g/L
Merck :3708
BRN :1915077
Henry's Law Constant :2.6×10⁴ mol/(m³Pa) at 25℃, HSDB (2015)
Major Application :pharmaceutical
pharmaceutical small molecule InChI :1S/C18H22O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h3,5,10,14-16,19H,2,4,6-9H2,1H3/t14-,15-,16+,18+/m1/s1
InChIKey :DNXHEGUUPJUMQT-CBZIJGRNSA-N
SMILES :C[C@]12CC[C@H]3[C@@H](CCc4cc(O)ccc34)[C@@H]1CCC2=O
CAS DataBase Reference :53-16-7(CAS DataBase Reference)
NIST Chemistry Reference :3-Hydroxyestra-1,3,5(10)-trien-17-one(53-16-7)
EPA Substance Registry System :Estrone (53-16-7)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501 H362 May cause harm to breast-fed children Reproductive toxicity, effects on or via lactation Additional category P201, P260, P263, P264, P270,P308+P313
Precautionary statements:	P202 Do not handle until all safety precautions have been read and understood. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P263 Avoid contact during pregnancy/while nursing. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P270 Do not eat, drink or smoke when using this product. P308+P313 IF exposed or concerned: Get medical advice/attention.