13732-69-9 Usage
Uses
D-(-)-Norgestrel 17-Acetate is an impurity of Norgestrel (N689500), progestational and ovulation inhibiting steroid.
Check Digit Verification of cas no
The CAS Registry Mumber 13732-69-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,7,3 and 2 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 13732-69:
(7*1)+(6*3)+(5*7)+(4*3)+(3*2)+(2*6)+(1*9)=99
99 % 10 = 9
So 13732-69-9 is a valid CAS Registry Number.
13732-69-9Relevant articles and documents
Total synthesis of optically active 13-ethyl-gonane derivatives
Rufer,Kosmol,Schr?der,Kleslich,Gibian
, p. 141 - 148 (1967)
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Norethisterone and levonorgestrel esters: A novel synthetic method
Leung,Karunanithy,Becket,Yeo
, p. 639 - 647 (2007/10/02)
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3-Oximes of D-17α-ethynyl-19-nortestosterone esters and method
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, (2008/06/13)
3-Oximes of D-17α-ethynyl-19-nortestosterone esters and derivatives thereof have pre- and post-coital activity for the suppression of fertility.
