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20-(bis(4-methoxyphenyl)phenylmethoxy)-21-nor-5-pregnen-3β-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

114826-41-4

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114826-41-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 114826-41-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,4,8,2 and 6 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 114826-41:
(8*1)+(7*1)+(6*4)+(5*8)+(4*2)+(3*6)+(2*4)+(1*1)=114
114 % 10 = 4
So 114826-41-4 is a valid CAS Registry Number.

114826-41-4Relevant academic research and scientific papers

PREPARATION OF (20E)-21-METHOXYCARBONYL-5,14,20-PREGNATRIEN-3β-OL DERIVATIVES

Pouzar, Vladimir,Cerny, Ivan,Drasar, Pavel,Havel, Miroslav

, p. 1803 - 1810 (2007/10/02)

(20E)-21-Methoxycarbonyl-5,14,20-pregnatrien-3β-yl hydrogen butanedioate (XII) and (20E)-21-ethoxycarbonyl-5,14,20-pregnatrien-3β-yl hydrogen butanedioate (XIV) were prepared in nine steps from 3β-acetoxy-5,14-pregnadien-20-one (I).In the key intermediate, 20-(bis(4-methoxyphenyl)phenylmethoxy)-21-nor-5,14-pregnadien-3β-yl 2-(trimethylsilyl)ethyl butanedioate (VIII), the hydroxyl in position 20 was protected with 4,4'-dimethoxytrityl group and the succinate moiety with 2-(trimethylsilyl)ethyl group.

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