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Benzoic acid (1S,3aS,3bS,8S,10aR,10bS,12aS)-10a,12a-dimethyl-6-oxo-8-(toluene-4-sulfonyloxy)-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.

138415-93-7

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138415-93-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138415-93-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,4,1 and 5 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138415-93:
(8*1)+(7*3)+(6*8)+(5*4)+(4*1)+(3*5)+(2*9)+(1*3)=137
137 % 10 = 7
So 138415-93-7 is a valid CAS Registry Number.

138415-93-7Relevant 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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