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27-thiobenzoyloxy-D:A-friedo-oleanane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

90702-17-3

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90702-17-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90702-17-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,7,0 and 2 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 90702-17:
(7*9)+(6*0)+(5*7)+(4*0)+(3*2)+(2*1)+(1*7)=113
113 % 10 = 3
So 90702-17-3 is a valid CAS Registry Number.

90702-17-3Relevant academic research and scientific papers

STUDIES ON TERPENOIDS AND STEROIDS-2; STRUCTURES OF TWO NEW TRI- AND TETRA-OXYGENATED D:A-FRIEDO-OLEANAN TRITERPENES FROM KOKOONA ZEYLANICA

Gunatilaka, A. A. Leslie,Nanayakkara, N. P. Dhammika

, p. 805 - 810 (1984)

The two D:A-friedo-oleanane triterpenes kokzeylanonol isolated from the inner bark of Kokoona zeylanica have been characterized as 6β,27-dihydroxy-D:A-friedo-olean-3-one and 6β,27-dihydroxy-D:A-friedo-olean-3,21-dione, respectively, by the deoxygenation of their 27-acetoxy derivatives using lithium-ethylenediamine reduction coupled with spectroscopic and irradiation methods.Kokzeylanonol represents the first tetra-oxygenated D:A-friedo-oleanane triterpene obtained from a natural source.Significance of some of these D:A-friedo-oleananes in the biosynthesis of quinonoid triterpenes in Celastraceae is discussed.

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