Properties
Melting point: 280-282 °C (lit.)
Optical rotation: +58° ±5° (0.04 g in 1 ml dioxane) at 25 °C
Boiling point: 370.61 °C (approximate estimate)
Density: 1.27
Refractive index: 58 ° (C=0.4, Dioxane)
Flash point: 9 °C
Storage conditions: 2-8 °C
Solubility: Practically insoluble in water, slightly soluble in ethanol (96%)
pKa: 10.38 ± 0.02 (H2O, t=23 ± 2 °C, unspecified) ed) (Uncertain)
Form: Solid
Color: White to Off-White
Optical Activity: +6127 (95% ethanol)
Water Solubility: 3.2 mg/L (25 ºC) Merck3707
BRN2508172
InChIKeyPROQIPRRNZUXQM-ZXXIGWHRSA-N
CAS Database 50-27-1 (CAS DataBase Reference)
NIST Chemical Substance Information Estriol (50-27-1)
EPA Chemical Substance Information Estriol (50-27-1)
Safety Information
GHS Hazard Pictograms (GHS hazard pictograms) GHS08
Warning word: Danger
Hazard statement: H351-H360FD-H362
Precautionary statement: P201-P202-P260-P263-P264-P308+P313
Hazard pictogram: T,F
Hazard class code: 60-61-40-45-39/23/24/25-23/24/25-11
Safety statement: 53-22-36/37/39-45-36/37-16
UN number: UN1230 - class 3 - PG 2 - Methanol, solution WGK Germany3
RTECS Number: KG822500 F8-10
Customs code: 29072990
Hazardous Substances Data: 50-27-1
Toxicity: LD50 oral in rat: > 2gm/kg
China
