Melting point :182-183 °C(lit.)
Boiling point :378°C (rough estimate)
Density :1.0944 (rough estimate)
refractive index :-30 ° (C=0.4, Pyridine)
Flash point :9℃
storage temp. :room temp
solubility :ethanol: 50 mg/mL, clear, slightly yellow
pka :pKa 10.32 (Uncertain)
form :Solid
color :White to Light yellow to Light orange
Merck :14,3734
BRN :2419975
BCS Class :3/1
InChIKey :BFPYWIDHMRZLRN-SLHNCBLASA-N
CAS DataBase Reference :57-63-6(CAS DataBase Reference)
NIST Chemistry Reference :Ethinyl estradiol(57-63-6)
EPA Substance Registry System :Ethinyl estradiol (57-63-6)

Symbol(GHS):
Signal word:	Danger
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 H350 May cause cancer Carcinogenicity Category 1A, 1B Danger 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:	P202 Do not handle until all safety precautions have been read and understood. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P270 Do not eat, drink or smoke when using this product. P273 Avoid release to the environment. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P308+P313 IF exposed or concerned: Get medical advice/attention.