1,3,5(10),8,14-Estrogen-3-ol-17-one, also known as equilenin, is a naturally occurring steroidal compound found in the urine of pregnant mares. It is a metabolite of equilin, another estrogenic substance, and belongs to the class of compounds known as estrogens. Equilenin exhibits weak estrogenic activity and is structurally similar to other estrogens like estrone and estradiol. It has been used in the past for hormone replacement therapy and as a component in some contraceptive formulations. However, due to its potential side effects and the availability of safer alternatives, its use in these applications has diminished. Equilenin is also of interest in research due to its role in the equine industry and its potential impact on human health when consumed through dietary sources.
The CAS Registry Mumber 1905-32-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,0 and 5 respectively; the second part has 2 digits, 3 and 2 respectively. Calculate Digit Verification of CAS Registry Number 1905-32: (6*1)+(5*9)+(4*0)+(3*5)+(2*3)+(1*2)=74 74 % 10 = 4 So 1905-32-4 is a valid CAS Registry Number.