Estra-1,3,5(10)-triene-2,4-d2-3,17-diol,(17b)- (9CI) cas no:53866-33-4

NameEstra-1,3,5(10)-triene-2,4-d2-3,17-diol,(17b)- (9CI)
CAS53866-33-4
Synonyms2,4-Dideuterioestradiol
Molecular FormulaC18H22 D2 O2
Molecular Weight274.42

refractive index1.599

Hazard T: Toxic;
Risk R45
Safety

Questionable carcinogen with experimental carcinogenic data. When heated to decomposition 2,4-Dideuterioestradiol (CAS NO.53866-33-4) emits acrid smoke and irritating fumes.
Hazard Codes: T
Risk Statements: 45-46-61-20/21/22 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed. 
R45:May cause cancer. 
R46:May cause heritable genetic damage. 
R61:May cause harm to the unborn child.
Safety Statements: 53-22-36/37/39-45 
S22:Do not breathe dust. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S53:Avoid exposure - obtain special instructions before use.