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19-Norpregna-1,3,5(10)-trien-20-yn-17-ol,3-methoxy-, (17a)- (72-33-3)

Identification
Name:19-Norpregna-1,3,5(10)-trien-20-yn-17-ol,3-methoxy-, (17a)-
Synonyms:19-Nor-17a-pregna-1,3,5(10)-trien-20-yn-17-ol,3-methoxy- (6CI,8CI);17-Ethynylestradiol 3-methyl ether;17a-Ethynyl-3-methoxy-1,3,5(10)-estratrien-17b-ol;17a-Ethynylestradiol 3-methyl ether;3-Methoxy-17a-ethinylestradiol;3-Methoxyethynylestradiol;3-O-Methyl-17a-ethynylestradiol;33355;Devocin;EE 3ME;Ethynylestradiol 3-monomethyl ether;Inostral;Mestranol;Ovastol;
CAS:72-33-3
EINECS: 200-777-8
Molecular Formula: C21H26O2
Molecular Weight: 310.47
InChI: InChI=1/C29H52/c1-7-22(20(2)3)12-11-21(4)25-15-16-26-24-14-13-23-10-8-9-18-28(23,5)27(24)17-19-29(25,26)6/h20-27H,7-19H2,1-6H3/t21-,22-,23+,24+,25-,26+,27+,28+,29-/m1/s1
Molecular Structure: (C21H26O2) 19-Nor-17a-pregna-1,3,5(10)-trien-20-yn-17-ol,3-methoxy- (6CI,8CI);17-Ethynylestradiol 3-methyl ethe...
Properties
Melting Point: 150-154 oC
Density:0.905g/cm3
Refractive index:1.49
Appearance:crystalline solid
Specification:
Crystalline Solid
usageEng:Orally active estrogenic steroid. It was the estrogen used in many of the first oral contraceptives
Safety Statements:22-26-36/37/39-45-36/37
22:Do not breathe dust
26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39:Wear suitable protective clothing, gloves and eye/face protection
45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
36/37:Wear suitable protective clothing and gloves
Report:

NTP 10th Report on Carcinogens. IARC Cancer Review: Human Limited Evidence IMEMDT ?? IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 21 ,1979,p. 257.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.:?) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Sufficient Evidence IMEMDT ?? IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 6 ,1974,p. 87.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.:?) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; IMEMDT ?? IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 21 ,1979,p. 257.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.:?) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) .

Usage:Orally active estrogenic steroid. It was the estrogen used in many of the first oral contraceptives
Safety Data
Hazard Symbols Xn: Harmful
 

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