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81769-06-4

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81769-06-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81769-06-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,6 and 9 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 81769-06:
(7*8)+(6*1)+(5*7)+(4*6)+(3*9)+(2*0)+(1*6)=154
154 % 10 = 4
So 81769-06-4 is a valid CAS Registry Number.

81769-06-4Downstream Products

81769-06-4Relevant academic research and scientific papers

Synthesis process of steroid compound, canrenone and spirolactone

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Paragraph 0126-0127; 0129-0140; 0142-0144; 0146, (2020/11/23)

The invention relates to the technical field of medicine synthesis, in particular to a synthesis process of a steroid compound, canrenone and spirolactone. An embodiment of the invention provides thesteroid compound. The steroid compound has a structural formula as shown in the specification. In the structural formula, R is selected from H or an alkyl group. The steroid compound can be used for synthesizing canrenone and spirolactone, synthesis conditions are mild, synthesis efficiency is high, the amount of wastewater is small, the quality of the formed products is high, and production costcan be effectively reduced.

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