242130-33-2 Usage
Uses
Used in Pharmaceutical Industry:
(17a)-17-(Acetyloxy)-19-norpregna-1,3,5(10)-trien-20-yn-3-yl--D-Glucopyranosiduronic Acid Methyl Ester Triacetate is used as an intermediate for the preparation of Ethynylestradiol 3-D-Glucuronid and Ethynylestradiol 3-β-D-Glucuronid. These compounds are essential in the development of hormonal medications, particularly in the field of contraceptives and hormone replacement therapy. Its role as an intermediate allows for the efficient synthesis of these pharmaceutically relevant molecules, contributing to the advancement of healthcare solutions.
Check Digit Verification of cas no
The CAS Registry Mumber 242130-33-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,2,1,3 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 242130-33:
(8*2)+(7*4)+(6*2)+(5*1)+(4*3)+(3*0)+(2*3)+(1*3)=82
82 % 10 = 2
So 242130-33-2 is a valid CAS Registry Number.
InChI:InChI=1/C35H42O12/c1-8-35(47-21(5)39)16-14-27-26-11-9-22-17-23(10-12-24(22)25(26)13-15-34(27,35)6)45-33-31(44-20(4)38)29(43-19(3)37)28(42-18(2)36)30(46-33)32(40)41-7/h1,10,12,17,25-31,33H,9,11,13-16H2,2-7H3/t25-,26-,27+,28+,29+,30?,31+,33-,34+,35+/m1/s1
242130-33-2Relevant articles and documents
Synthesis of β-glucuronides of estradiol, ethynylestradiol and estrone
Werschkun, Barbara,Gorziza, Karin,Thiem, Joachim
, p. 629 - 637 (2007/10/03)
Improved syntheses for the 3-β-D-glucuronides of the steroidal sex hormones 17β-estradiol, 17α-ethynylestradiol and estrone are reported employing boron trifluoride diethyl etherate catalysis with tetraacetylated glucuronic acid or the corresponding imidate.
