Melting point :153-155 °C(lit.)
alpha :+2～+8°(D/20℃)(c=1, 1,4-dioxane)
Boiling point :390.58°C (rough estimate)
Density :1.0865 (rough estimate)
refractive index :1.4900 (estimate)
storage temp. :Sealed in dry,2-8°C
solubility :Acetonitrile: 1 mg/ml; Ethanol: 1 mg/ml; Methanol: 1 mg/ml
form :Solid
pka :13.10±0.40(Predicted)
color :White to off-white
optical activity :[α]15/D +3°, c = 2 in dioxane
Merck :5917
BRN :2625905
CAS DataBase Reference :72-33-3(CAS DataBase Reference)
NIST Chemistry Reference :Mestranol(72-33-3)
EPA Substance Registry System :Mestranol (72-33-3)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes 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 H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
Precautionary statements:	P201 Obtain special instructions before use. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P308+P313 IF exposed or concerned: Get medical advice/attention.