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