1104734-59-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1104734-59-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,0,4,7,3 and 4 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1104734-59:
(9*1)+(8*1)+(7*0)+(6*4)+(5*7)+(4*3)+(3*4)+(2*5)+(1*9)=119
119 % 10 = 9
So 1104734-59-9 is a valid CAS Registry Number.
1104734-59-9Relevant academic research and scientific papers
Process for the preparation of Drospirenone
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Page/Page column 22-23, (2009/02/10)
A process for the preparation of Drospirenone (I) according to the following scheme wherein the substituent R is defined in the description. The process improves the product yield and purity by reducing the formation of undesired side-products and is particularly convenient for industrial-scale manufacturing.
