Melting point :176-180 °C(lit.)
Boiling point :355.44°C (rough estimate)
alpha :D20 +53 to +56° (c = 0.9 in dioxane)
Density :1.0708 (rough estimate)
refractive index :1.4800 (estimate)
storage temp. :Sealed in dry,Room Temperature
solubility :ethanol: 50 mg/mL, clear, colorless
form :powder
pka :10.27±0.60(Predicted)
color :white with slight yellow
Water Solubility :3.9mg/L(25 ºC)
Merck :14,3704
CAS DataBase Reference :57-91-0(CAS DataBase Reference)
NIST Chemistry Reference :Estra-1,3,5(10)-triene-3,17alpha-diol(57-91-0)
EPA Substance Registry System :Estra-1,3,5(10)-triene-3,17-diol, (17.alpha.)- (57-91-0)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H341 Suspected of causing genetic defects Germ cell mutagenicity Category 2 Warning P201,P202, P281, P308+P313, P405,P501 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 H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P201 Obtain special instructions before use. 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. P273 Avoid release to the environment. P308+P313 IF exposed or concerned: Get medical advice/attention.