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Benzoic acid (1S,3aS,3bS,8S,10aR,10bS,12aS)-8-(tert-butyl-dimethyl-silanyloxy)-10a,12a-dimethyl-6-oxo-hexadecahydro-6a-aza-benzo[3,4]cyclohepta[1,2-e]inden-1-yl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

142004-75-9

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142004-75-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142004-75-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,0,0 and 4 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 142004-75:
(8*1)+(7*4)+(6*2)+(5*0)+(4*0)+(3*4)+(2*7)+(1*5)=79
79 % 10 = 9
So 142004-75-9 is a valid CAS Registry Number.

142004-75-9Relevant academic research and scientific papers

A Novel Stereospecific Rearrangement of 3-Substituted B-Homo 5-Azasteroids to Their A-Nor Analogues. Preparation, Stereochemistry, and Conformational Studies

Back, Thomas G.,Chau, Joseph H.-L.,Codding, Penelope W.,Gladstone, Patricia L.,Jones, David H.,et al.

, p. 4110 - 4121 (2007/10/02)

The novel 3α- and 3β-hydroxy-B-homo-5-azasteroid lactams 4 and 5 were prepared from testosterone.When the hydroxyl group in these compounds is converted into a leaving group, rearrangement to the corresponding A-nor azasteroids occurs under a variety of c

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