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5a,7a-dimethyl-2-oxo-2,3,4,5,5a,5b,6,7,7a,8,9,10,10a,10b,11,12-hexadecahydrocyclopenta[5,6]naphtho[1,2-d]azepin-8-yl acetate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21058-55-9

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21058-55-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21058-55-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,5 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21058-55:
(7*2)+(6*1)+(5*0)+(4*5)+(3*8)+(2*5)+(1*5)=79
79 % 10 = 9
So 21058-55-9 is a valid CAS Registry Number.

21058-55-9Relevant academic research and scientific papers

ESTERS OF STEROIDAL LACTAM AND BIS(2-CHLOROETHYL) AMINOPHENOXY PROPANOIC ACID DERIVATIVES

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Page/Page column 11, (2017/01/23)

Novel homo-aza-steroidal esters with alkylating bis(2-chloroethyl)aminophenoxy propanoic acid and substituted derivatives, processes for their preparation, pharmaceutical compositions containing them and their use in the treatment of cancer.

Synthesis and evaluation of new steroidal lactam conjugates with aniline mustards as potential antileukemic therapeutics

Trafalis, Dimitrios,Geromichalou, Elena,Dalezis, Panagiotis,Nikoleousakos, Nikolaos,Sarli, Vasiliki

, p. 1 - 8 (2016/08/02)

Alkylating agents are still nowadays one of the most important classes of cytotoxic drugs, which display a wide range of therapeutic use for the treatment of various cancers. We have synthesized and tested four hybrid homo-azasteroidal alkylating esters for antileukemic activity against five sensitive to alkylating agents human leukemia cell lines in vitro and against P388 murine leukemia in vivo. Comparatively, melphalan and 3-(4-(bis(2-chloroethyl)amino)phenoxy)propanoic acid (POPAM) were also examined. All the homo-aza-steroidal alkylators showed relatively lower acute toxicity, very promising and antileukemic activity both in vitro and in vivo.

Beckmann rearrangement of 3-aza-A-homo-4α-androsten-4,17-dione oxime and 3-oxo-13α-amino-13,17-seco-4-androsten-17-oic 13,17-lactam oxime

Camoutsis,Catsoulacos

, p. 1093 - 1094 (2007/10/02)

Rearragements of 3-aza-A-homo-4α-androsten-4,17-dione oxime produced a mixture of the normal lactam product and the product of a 'second order' cleavage, an unsaturated nitrile. The lactam 3,17α-diaza-A,D-bishomoandrost-4α-ene-4,17-dione was also obtained from the rearrangement of the syn-3-oxo-13α-amino-13,17-seco-4-androsten-17-oic-13,17-lactam oxime. The resolution of syn- and anti-isomers of VIII was effected by column chromatography and their structure was determined by spectral data.

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